Vue嵌入Java代码 vue java

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mob64ca140d2323 2023-09-19 16:39:04

文章标签 Vue嵌入Java代码 java vue Vue html 文章分类 Java 后端开发

1. Vue概述

1.1 认识Vue

Vue (读音 /vjuː/，类似于 view) 是一套用于构建用户界面的渐进式框架。与其它大型框架不同的是，Vue 被设计为可以自底向上逐层应用。Vue 的核心库只关注视图层。Vue.js 的目标是通过尽可能简单的 API 实现响应的数据绑定和组合的视图组件。它不仅易于上手，还便于与第三方库或既有项目整合。另一方面，当与现代化的工具链以及各种支持类库结合使用时，Vue 也完全能够为复杂的单页应用提供驱动。

前端框架三巨头：Vue.js、React.js、AngularJS，vue.js以其轻量易用著称，vue.js和React.js发展速度最快。

渐进式：可以选择性的使用该框架的一个或一些组件，这些组件的使用也不需要将框架全部组件都应用；而且用了这些组件也不要求你的系统全部都使用该框架。

官网：添加链接描述参考：添加链接描述

1.2 MVVM模式

MVVM是Model-View-ViewModel的简写。它本质上就是MVC 的改进版。MVVM 就是将其中的View 的状态和行为抽象化，让我们将视图 UI 和业务逻辑分开

MVVM模式和MVC模式一样，主要目的是分离视图（View）和模型（Model）

Vue.js 是一个提供了 MVVM 风格的双向数据绑定的 Javascript 库，专注于View 层。它的核心是 MVVM 中的 VM，也就是 ViewModel。 ViewModel负责连接 View 和 Model，保证视图和数据的一致性，这种轻量级的架构让前端开发更加高效、便捷

Vue嵌入Java代码 vue java_java

2. Vue快速入门

2.1 插值表达式

数据绑定最常见的形式就是使用“Mustache”语法 (双大括号) 的文本插值，Mustache 标签将会被替代为对应数据对象上属性的值。无论何时，绑定的数据对象上属性发生了改变，插值处的内容都会更新。
Vue.js 都提供了完全的 JavaScript 表达式支持。

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>快速入门</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            {{message}}  <!--Vue的插值表达式，把data中定义的数据显示到此处-->

            <!--三元运算符-->
            {{ true ? "OK" : "NO" }}

            <!--数学运算-->
            {{number*3.14}}

            <!--插值表达式不支持
                {{var a = 1;}}
                {{if(a=10){}}}
            -->


        </div>
    </body>
    <script>
        //view model
        //创建vue对象
        new Vue({
            el:"#app", //由vue接管id为app区域
            data:{
                message:"Hello Vue!",  //注意：此处不要加分号
                number:100
            }
        });
    </script>
</html>

Vue.js 支持数值运算，三元运算：

{{ number + 1 }}
{{ ok ? 'YES' : 'NO' }}

Vue.js 不支持语句，流控控制：

<!-- 这是语句，不是表达式 -->
{{ var a = 1 }}
<!-- 流控制也不会生效，请使用三元表达式 -->
{{ if (ok) { return message } }}

2.2 VueJS 常用系统指令

2.2.1 v-on

可以用 v-on 指令监听 DOM 事件，并在触发时运行一些 JavaScript 代码

2.2.1 v-on:click

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-on:click</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            {{message}}
            <button v-on:click="fun1('Vue v-on')">vue的onclick</button>
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",  //表示当前vue对象接管了div区域
            data:{
                message:"Hello Vue!" //注意不要写分号结尾
            },
            methods:{
                fun1:function (msg){
                    alert("Hello");
                    this.message=msg;
                }
            }
        });
    </script>
</html>

2.2.2 v-on:keydown

以下为使用传统方式和vue方式分别实现输入框只能输入数字，输入其他无效。

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-on:keydown</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            Vue:<input type="text" v-on:keydown="fun($event)">
            <hr/>
            传统js：<input type="text" onkeydown="showKeyCode()" />
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",
            methods:{
                /* $event 它是vue中的事件对象，和我们传统js的event对象是一样的 */
                fun:function(event){
                    var keyCode = event.keyCode;
                    if (keyCode < 48 || keyCode > 57){
                        //不让键盘的按键起作用
                        event.preventDefault()
                    }
                }
            }
        });

        //传统js的键盘按下事件
        function showKeyCode(){
            //event对象和我们的document对象以及Window对象是一样的，可以不用定义直接使用
            var keyCode = event.keyCode;
            if (keyCode < 48 || keyCode > 57){
                //不让键盘的按键起作用
                event.preventDefault()
            }
            //alert(keyCode);
            // if (event.keyCode == 13){
            //     alert("你按的是回车");
            // }
        }
    </script>
</html>

2.2.3 v-on:mouseover

这里实现鼠标移动到指定位置出现弹框，

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-on:mouseover</title>
        <script src="js/vuejs-2.5.16.js"></script>
        <style>
            #div {
                background-color: red;
                width: 300px;
                height: 300px;
            }
        </style>
    </head>
    <body>
        <div id="app">
            <div v-on:mouseover="fun1" id="div">
                <textarea v-on:mouseover="fun2($event)">这是一个文件域</textarea>
            </div>

            <!--<div onmouseover="divmouseover()" id="div">
                <textarea onmouseover="textareamouseover()">这是一个文件域</textarea>
            </div>-->

        </div>
    </body>
    <script>
        //view model
        /*
            @事件名称  就是 v-on：事件名称的简写方式
            @mouseover 就等同于  v-on:mouseover
        * */
        new Vue({
            el:"#app", //由vue接管id为app区域
            methods:{
                fun1:function(){
                    alert("鼠标悬停在div上")
                },
                fun2:function(event){
                    alert("鼠标悬停在textarea上")
                    event.stopPropagation();  //消除传递，否则textarea在div内，textarea的弹框弹完还会弹div的弹框
                }
            }
        });

        //传统的js方式
        function divmouseover(){
            alert("鼠标移动到div上了");
        }
        function textareamouseover(){
            alert("鼠标移动到textarea上了");
            event.stopPropagation();  //消除传递，否则textarea在div内，textarea的弹框弹完还会弹div的弹框
        }

    </script>
</html>

2.2.4 事件修饰符

Vue.js 为 v-on 提供了事件修饰符来处理 DOM 事件细节，如：event.preventDefault() 或 event.stopPropagation()。
Vue.js通过由点(.)表示的指令后缀来调用修饰符。

.stop 阻止单击事件继续传播
.prevent 阻止事件的默认行为
.capture 实现捕获触发事件的机制，即从外部事件开始执行
.self 实现只有点击当前元素才会触发事件处理函数
.once 实现事件的触发次数为一次

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-on:事件修饰符</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            <form @submit.prevent action="http://www.itheima.com" method="post">
                <input type="submit" value="提交">
            </form>

            <form action="http://www.itheima.com" method="post" onsubmit="return checkForm()">
                <input type="submit" value="提交">
            </form>

        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app"
        });

        //传统js方式
        function checkForm(){
            alert(1);
            //表单验证必须有一个明确的boolean类型返回值
            //在应用验证方法时必须加上 return 方法名称
            return false;
        }

    </script>
</html>

2.2.5 按键修饰符

Vue 允许为 v-on 在监听键盘事件时添加按键修饰符
全部的按键别名：

.enter
.tab
.delete (捕获 “删除” 和 “退格” 键）
.esc
.space
.up
.down
.left
.right
.ctrl
.alt
.shift
.meta

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-on:按键修饰符</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            Vue:<input type="text" v-on:keydown.enter="fun1">
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",
            methods:{
                fun1:function (){
                    alert("按下的是回车");
                }
            }
        });

    </script>
</html>

2.3 v-text与v-html

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-text与v-html</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            <div v-text="message"></div>
            <div v-html="message"></div>
            <!--<div id="div1"></div>
            <div id="div2"></div>-->
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",
            data:{
                message:"<h1>Hello Vue</h1>"
            }
        });


        //传统js的innerText和innerHTML
        window.onload = function (){
            document.getElementById("div1").innerHTML="<h1>Hello</h1>";
            document.getElementById("div2").innerText="<h1>Hello</h1>";
        }

    </script>
</html>

2.4 v-bind

插值语法不能作用在 HTML 特性上，遇到这种情况应该使用 v-bind指令

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-bind</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            <font size="5" v-bind:color="ys1">船只</font>
            <font size="5" :color="ys2">黑马</font>
        </div>
    </body>
    <script>
        //view model
        //插值表达式不能用于html标签的属性取值
        //要想给html标签的属性设置变量的值，需要使用v-bind
        //v-bind也可以简化写法  直接使用：
        new Vue({
            el:"#app",
            data:{
                ys1:"red",
                ys2:"green"
            }

        });

    </script>
</html>

v-bind简写方式

<!-- 完整语法 -->
<a v-bind:href="url">...</a>
<!-- 缩写 -->
<a :href="url">...</a>

2.5 v-model

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-model</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            <form action="" method="post">
                用户名：<input type="text" name="username" v-model="user.username" ><br/>
                密码：<input type="text" name="password" v-model="user.password" ><br/>
            </form>
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",
            data:{
                user:{
                    username:"test",
                    password:"1234"
                }
            }
        });
    </script>
</html>

2.6 v-for

操作array

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>v-for示例1</title>
		<script src="js/vuejs-2.5.16.js"></script>
	</head>
	<body>
		<div id="app">
			<ul>
				<li v-for="(item,index) in list">{{item+" "+index}}</li>
			</ul>
		</div>
		<script>
			new Vue({
				el:'#app', //表示当前vue对象接管了div区域
				data:{
					list:[1,2,3,4,5,6]
				}
			});
		</script>
	</body>
</html>

操作对象

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>v-for示例2</title>
		<script src="js/vuejs-2.5.16.js"></script>
	</head>
	<body>
		<div id="app">
			<ul>
				<li v-for="(value,key) in product">{{key}}--{{value}}</li>
			</ul>
		</div>
		<script>
			new Vue({
				el:'#app', //表示当前vue对象接管了div区域
				data:{
					product:{id:1,pname:"电视机",price:6000}
				}
			});
		</script>
	</body>
</html>

操作对象数组

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>v-for示例3</title>
		<script src="js/vuejs-2.5.16.js"></script>
	</head>
	<body>
	<div id="app">
		<table border="1">
			<tr>
				<td>序号</td>
				<td>名称</td>
				<td>价格</td>
			</tr>
			<tr v-for="p in products">
				<td>{{p.id}}</td>
				<td>{{p.pname}}</td>
				<td>{{p.price}}</td>
			</tr>
		</table>
	</div>
		<script>
			new Vue({
				el:'#app', //表示当前vue对象接管了div区域
				data:{
					products:[
					{id:1,pname:"电视机",price:6000},
					{id:2,pname:"电冰箱",price:8000},
					{id:3,pname:"电风扇",price:600}]
				}
			});
		</script>
	</body>
</html>

2.6 v-if 和 v-show

v-if是根据表达式的值来决定是否渲染元素
v-show是根据表达式的值来切换元素的display css属性

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>v-if和v-show</title>
        <script src="js/vuejs-2.5.16.js"></script>
    </head>
    <body>
        <div id="app">
            <span v-if="flag">船只</span>
            <span v-show="flag">itcast</span>
            <button @click="toggle">切换</button>
        </div>
    </body>
    <script>
        //view model
        new Vue({
            el:"#app",
            data:{
                flag:false
            },
            methods:{
                toggle:function (){
                    this.flag = !this.flag;
                }
            }
        });
    </script>
</html>

3. Vuejs生命周期

Vue嵌入Java代码 vue java_html_02

vue生命周期：

1. 创建阶段：beforeCreate（）；created（）

新建 vue 实例 new vue（）
读取配置项，加载生命周期方法
调用 beforeCreate（）
设置 data、methods、computed… 等配置项
调用created（）

2. 挂载阶段：beforeMount（）；mounted（）

判断是否拥有 template 配置项
有：传入 render 函数，编译template
没有：把 el 对应的 outerHTML 当成 template 传入 render 函数编译
调用 beforeMount（）
使用编译后结果替换 el 作用的 dom
调用 mount（）

3. 更新阶段：beforeUpdate（）；updated（）

只有数据发生变化，并且 dom 使用了该数据，dom 才会更新，此时才执行更新的生命周期方法，更新前和更新后不是数据更新的状态，而是 dom 更新前与更新后。

数据发生变化
调用 beforeUpdate（）
重新渲染 dom
调用 updated（）

4. 销毁阶段：beforeDestroy（）；destroyed（）

执行 vm.$destroy（）销毁实例
调用 beforeDestroy（）
实例移除 data、methods、computed…
调用 destroyed（）

vue代码演示生命周期：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <title>生命周期</title>
    <script src="js/vuejs-2.5.16.js"></script>
</head>

<body>
<div id="app">
    {{message}}
</div>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            message: 'hello world'
        },
        beforeCreate: function() {
            console.log(this);
            showData('创建vue实例前', this);
        },
        created: function() {
            showData('创建vue实例后', this);
        },
        beforeMount: function() {
            showData('挂载到dom前', this);
        },
        mounted: function() {
            showData('挂载到dom后', this);
        },
        beforeUpdate: function() {
            showData('数据变化更新前', this);
        },
        updated: function() {
            showData('数据变化更新后', this);
        },
        beforeDestroy: function() {
            vm.test = "3333";
            showData('vue实例销毁前', this);
        },
        destroyed: function() {
            showData('vue实例销毁后', this);
        }
    });
    function realDom() {
        console.log('真实dom结构：' + document.getElementById('app').innerHTML);
    }
    function showData(process, obj) {
        console.log(process);
        console.log('data 数据：' + obj.message)
        console.log('挂载的对象：')
        console.log(obj.$el)
        realDom();
        console.log('------------------')
        console.log('------------------')
    }
    //vm.message="good...";
    //vm.$destroy();
</script>
</body>
</html>

Vue嵌入Java代码 vue java_vue_03

将上述代码中倒数第五行注释代码放开运行数据如下：

console.log('------------------')
        console.log('------------------')
    }
    vm.message="good...";
    //vm.$destroy();
</script>
</body>
</html>

Vue嵌入Java代码 vue java_vue_04

将上述代码中倒数第五行注释代码放开运行数据如下：

console.log('------------------')
        console.log('------------------')
    }
    //vm.message="good...";
    vm.$destroy();
</script>
</body>
</html>

Vue嵌入Java代码 vue java_java_05

上述测试代码已上传至码云添加链接描述

4. Vuejs ajax

vue-resource是Vue.js的插件提供了使用XMLHttpRequest或JSONP进行Web请求和处理响应的服务。当vue更新到2.0之后，作者就宣告不再对vue-resource更新，而是推荐的axios。
vue-resource的github: https://github.com/pagekit/vue-resource

4.1 axios

Axios 是一个基于 promise 的 HTTP 库，可以用在浏览器和 node.js 中
axios的github:添加链接描述

4.2 get请求

//通过给定的ID来发送请求
axios.get('/user?ID=12345')
	.then(function(response){
		console.log(response);
	})
	.catch(function(err){
		console.log(err);
});
//以上请求也可以通过这种方式来发送
axios.get('/user',{
		params:{
		ID:12345
		}
	})
	.then(function(response){
		console.log(response);
	})
	.catch(function(err){
		console.log(err);
});

4.3 post请求

axios.post('/user',{
		firstName:'Fred',
		lastName:'Flintstone'
	})
	.then(function(res){
		console.log(res);
	})
	.catch(function(err){
		console.log(err);
});

5. 案例

5.1 案例需求

完成用户的查询与修改操作

5.2 数据库设计与表结构

CREATE DATABASE vuejsdemo;
USE vuejsdemo;
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `age` int(11) DEFAULT NULL,
  `username` varchar(20) DEFAULT NULL,
  `PASSWORD` varchar(50) DEFAULT NULL,
  `email` varchar(50) DEFAULT NULL,
  `sex` varchar(20) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;

INSERT INTO `user` VALUES ('1', '33', '张老师', '123', 'zzz@itcast.cn', '男 ');
INSERT INTO `user` VALUES ('2', '31', '刘老师', '123', 'lll@itcast.cn', '女');
INSERT INTO `user` VALUES ('3', '17', '赵工', '213', 'zg@itcast.cn', '女');
INSERT INTO `user` VALUES ('4', '40', '高管', '213', 'gg@itcast.cn', 'female');
INSERT INTO `user` VALUES ('5', '28', '李总', '312', 'lz@jxjt.com', 'male');
INSERT INTO `user` VALUES ('6', '34', '王董', '312', 'wd@jxjt.com', 'male');
INSERT INTO `user` VALUES ('7', '55', '孙老板', '4321', 'slb@xzjt.com', '男');
INSERT INTO `user` VALUES ('8', '19', '陈秘书', '4321', 'cms@xzjt.com', '女');

5.3 服务器端

5.3.1 配置文件

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>9</maven.compiler.source>
    <maven.compiler.target>9</maven.compiler.target>
    <spring.version>5.0.2.RELEASE</spring.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mybatis.version>3.4.5</mybatis.version>
  </properties>
  <dependencies> <!-- spring -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.6.8</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency> <!-- log start -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency> <!-- log end -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
    </dependency>
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.1.2</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.5</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.9.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.9.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.9.0</version>
    </dependency>
  </dependencies>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
  <display-name></display-name>

  <!-- 手动指定 spring 配置文件位置 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!-- 配置 spring 提供的监听器，用于启动服务时加载容器 。该间监听器只能加载 WEB-INF 目录中名称为 applicationContext.xml 的配置文件 -->
  <listener>
    <listener-class>
      org.springframework.web.context.ContextLoaderListener
    </listener-class>
  </listener>
  <!-- 配置 spring mvc 的核心控制器 -->
  <servlet>
    <servlet-name>springmvcDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，用于读取 springmvc 的配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 配置 servlet 的对象的创建时间点：应用加载时创建。取值只能是非 0 正整数，表示启动顺 序 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvcDispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <!-- 配置 springMVC 编码过滤器 -->
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <!-- 设置过滤器中的属性值 -->
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <!-- 启动过滤器 -->
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <!-- 过滤所有请求 -->
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 配置创建 spring 容器要扫描的包 -->
    <context:component-scan base-package="com.xmx.web.controller"></context:component-scan>
    <mvc:annotation-driven></mvc:annotation-driven>
</beans>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
                            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
                            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 配置 spring 创建容器时要扫描的包 -->
    <context:component-scan base-package="com.xmx">
        <!--制定扫包规则，不扫描@Controller 注解的 JAVA 类，其他的还是要扫描 -->
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置 MyBatis 的 Session 工厂 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
    <!-- 配置 Mapper 扫描器 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.xmx.dao"/>
    </bean>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 配置事务的通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
    	<tx:attributes>
    		<tx:method name="*" propagation="REQUIRED" read-only="false"/>
    		<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
    	</tx:attributes>
    </tx:advice>
    <!-- 配置aop -->
    <aop:config>
    	<aop:pointcut expression="execution(* com.xmx.service.impl.*.*(..))" id="pt1"/>
    	<aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
    </aop:config>
</beans>

db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/vuejsdemo
jdbc.username=root
jdbc.password=root

5.3.2 domain

User

package com.xmx.domain;

import java.io.Serializable;

/**
 * @Author Xumx
 * @Date 2021/3/15 11:09
 * @Version 1.0
 */
public class User implements Serializable {
    private Integer id;
    private String username;
    private String password;
    private Integer age;
    private String sex;
    private String email;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", age=" + age +
                ", sex='" + sex + '\'' +
                ", email='" + email + '\'' +
                '}';
    }
}

5.3.3 dao

IUserDao

package com.xmx.dao;

import com.xmx.domain.User;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

/**
 * 用户的持久层接口
 * @Author Xumx
 * @Date 2021/3/15 11:13
 * @Version 1.0
 */
public interface IUserDao {

    /*
    *  查询用户列表
    * */
    @Select("select * from user")
    List<User> findAll();

    /*
    *   根据id查询
    * */
    @Select("select * from user where id = #{userId}")
    User findById(Integer userId);

    /*
    *   更新用户
    * */
    @Update("update user set username=#{username},password=#{password},age=#{age},sex=#{sex},email=#{email} where id = #{id}")
    void updateUser(User user);
}

5.3.4 service

IUserService

package com.xmx.service;

import com.xmx.domain.User;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

/**
 * @Author Xumx
 * @Date 2021/3/15 11:21
 * @Version 1.0
 */
public interface IUserService {
    /*
     *  查询用户列表
     * */
    List<User> findAll();

    /*
     *   根据id查询
     * */
    User findById(Integer userId);

    /*
     *   更新用户
     * */
    void updateUser(User user);
}

5.3.5 service.impl

IUserServiceImpl

package com.xmx.service.impl;

import com.xmx.dao.IUserDao;
import com.xmx.domain.User;
import com.xmx.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * @Author Xumx
 * @Date 2021/3/15 11:23
 * @Version 1.0
 */
@Service
public class IUserServiceImpl implements IUserService {

    @Autowired
    private IUserDao userDao;

    @Override
    public List<User> findAll() {
        return userDao.findAll();
    }

    @Override
    public User findById(Integer userId) {
        return userDao.findById(userId);
    }

    @Override
    public void updateUser(User user) {
        userDao.updateUser(user);
    }
}

5.3.5 controller

UserController

package com.xmx.web.controller;

import com.xmx.domain.User;
import com.xmx.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

/**
 * @Author Xumx
 * @Date 2021/3/15 11:52
 * @Version 1.0
 */
@Controller
@RequestMapping("/user")
@ResponseBody
public class UserController {

    @Autowired
    private IUserService userService;

    /*
    *   查询所有
    * */
    @RequestMapping("/findAll")
    public List<User> findAll(){
        return userService.findAll();
    }

    /*
    *   根据id查询
    * */
    @RequestMapping("/findById")
    public User findById(Integer id){
        return userService.findById(id);
    }

    /*
    *   更新
    * */
    @RequestMapping("/updateUser")
    public void updateUser(@RequestBody User user){
        userService.updateUser(user);
    }
}

5.4 客户端

5.4.1 user.html页面

<!DOCTYPE html>
<html>

<head>
    <!-- 页面meta -->
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <title>数据 - AdminLTE2定制版</title>
    <meta name="description" content="AdminLTE2定制版">
    <meta name="keywords" content="AdminLTE2定制版">
    <meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">

    <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
    <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    
    <link rel="stylesheet" href="plugins/bootstrap/css/bootstrap.min.css">
    <link rel="stylesheet" href="plugins/font-awesome/css/font-awesome.min.css">
    <link rel="stylesheet" href="plugins/ionicons/css/ionicons.min.css">
    <link rel="stylesheet" href="plugins/iCheck/square/blue.css">
    <link rel="stylesheet" href="plugins/morris/morris.css">
    <link rel="stylesheet" href="plugins/jvectormap/jquery-jvectormap-1.2.2.css">
    <link rel="stylesheet" href="plugins/datepicker/datepicker3.css">
    <link rel="stylesheet" href="plugins/daterangepicker/daterangepicker.css">
    <link rel="stylesheet" href="plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.min.css">
    <link rel="stylesheet" href="plugins/datatables/dataTables.bootstrap.css">
    <link rel="stylesheet" href="plugins/treeTable/jquery.treetable.css">
    <link rel="stylesheet" href="plugins/treeTable/jquery.treetable.theme.default.css">
    <link rel="stylesheet" href="plugins/select2/select2.css">
    <link rel="stylesheet" href="plugins/colorpicker/bootstrap-colorpicker.min.css">
    <link rel="stylesheet" href="plugins/bootstrap-markdown/css/bootstrap-markdown.min.css">
    <link rel="stylesheet" href="plugins/adminLTE/css/AdminLTE.css">
    <link rel="stylesheet" href="plugins/adminLTE/css/skins/_all-skins.min.css">
    <link rel="stylesheet" href="css/style.css">
    <link rel="stylesheet" href="plugins/ionslider/ion.rangeSlider.css">
    <link rel="stylesheet" href="plugins/ionslider/ion.rangeSlider.skinNice.css">
    <link rel="stylesheet" href="plugins/bootstrap-slider/slider.css">
    <link rel="stylesheet" href="plugins/bootstrap-datetimepicker/bootstrap-datetimepicker.css">
</head>

<body class="hold-transition skin-purple sidebar-mini">

<div class="wrapper" id="app">

    <!-- 页面头部 -->
    <header class="main-header">


        <!-- Logo -->
        <a href="all-admin-index.html" class="logo">
            <!-- mini logo for sidebar mini 50x50 pixels -->
            <span class="logo-mini"><b>数据</b></span>
            <!-- logo for regular state and mobile devices -->
            <span class="logo-lg"><b>数据</b>后台管理</span>
        </a>


        <!-- Header Navbar: style can be found in header.less -->
        <nav class="navbar navbar-static-top">
            <!-- Sidebar toggle button-->
            <a href="#" class="sidebar-toggle" data-toggle="offcanvas" role="button">
                <span class="sr-only">Toggle navigation</span>
            </a>

            <div class="navbar-custom-menu">
                <ul class="nav navbar-nav">
                    <!-- Messages: style can be found in dropdown.less-->
                    <li class="dropdown messages-menu">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                            <i class="fa fa-envelope-o"></i>
                            <span class="label label-success">4</span>
                        </a>
                        <ul class="dropdown-menu">
                            <li class="header">你有4个邮件</li>
                            <li>
                                <!-- inner menu: contains the actual data -->
                                <ul class="menu">
                                    <li>
                                        <!-- start message -->
                                        <a href="#">
                                            <div class="pull-left">
                                                <img src="img/user2-160x160.jpg" class="img-circle" alt="User Image">
                                            </div>
                                            <h4>
                                                系统消息
                                                <small><i class="fa fa-clock-o"></i> 5 分钟前</small>
                                            </h4>
                                            <p>欢迎登录系统?</p>
                                        </a>
                                    </li>
                                    <!-- end message -->
                                    <li>
                                        <a href="#">
                                            <div class="pull-left">
                                                <img src="img/user3-128x128.jpg" class="img-circle" alt="User Image">
                                            </div>
                                            <h4>
                                                团队消息
                                                <small><i class="fa fa-clock-o"></i> 2 小时前</small>
                                            </h4>
                                            <p>你有新的任务了</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="pull-left">
                                                <img src="img/user4-128x128.jpg" class="img-circle" alt="User Image">
                                            </div>
                                            <h4>
                                                Developers
                                                <small><i class="fa fa-clock-o"></i> Today</small>
                                            </h4>
                                            <p>Why not buy a new awesome theme?</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="pull-left">
                                                <img src="img/user3-128x128.jpg" class="img-circle" alt="User Image">
                                            </div>
                                            <h4>
                                                Sales Department
                                                <small><i class="fa fa-clock-o"></i> Yesterday</small>
                                            </h4>
                                            <p>Why not buy a new awesome theme?</p>
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <div class="pull-left">
                                                <img src="img/user4-128x128.jpg" class="img-circle" alt="User Image">
                                            </div>
                                            <h4>
                                                Reviewers
                                                <small><i class="fa fa-clock-o"></i> 2 days</small>
                                            </h4>
                                            <p>Why not buy a new awesome theme?</p>
                                        </a>
                                    </li>
                                </ul>
                            </li>
                            <li class="footer"><a href="#">See All Messages</a></li>
                        </ul>
                    </li>
                    <!-- Notifications: style can be found in dropdown.less -->
                    <li class="dropdown notifications-menu">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                            <i class="fa fa-bell-o"></i>
                            <span class="label label-warning">10</span>
                        </a>
                        <ul class="dropdown-menu">
                            <li class="header">你有10个新消息</li>
                            <li>
                                <!-- inner menu: contains the actual data -->
                                <ul class="menu">
                                    <li>
                                        <a href="#">
                                            <i class="fa fa-users text-aqua"></i> 5 new members joined today
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <i class="fa fa-warning text-yellow"></i> Very long description here that
                                            may not
                                            fit into the page and may cause design problems
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <i class="fa fa-users text-red"></i> 5 new members joined
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <i class="fa fa-shopping-cart text-green"></i> 25 sales made
                                        </a>
                                    </li>
                                    <li>
                                        <a href="#">
                                            <i class="fa fa-user text-red"></i> You changed your username
                                        </a>
                                    </li>
                                </ul>
                            </li>
                            <li class="footer"><a href="#">View all</a></li>
                        </ul>
                    </li>
                    <!-- Tasks: style can be found in dropdown.less -->
                    <li class="dropdown tasks-menu">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                            <i class="fa fa-flag-o"></i>
                            <span class="label label-danger">9</span>
                        </a>
                        <ul class="dropdown-menu">
                            <li class="header">你有9个新任务</li>
                            <li>
                                <!-- inner menu: contains the actual data -->
                                <ul class="menu">
                                    <li>
                                        <!-- Task item -->
                                        <a href="#">
                                            <h3>
                                                Design some buttons
                                                <small class="pull-right">20%</small>
                                            </h3>
                                            <div class="progress xs">
                                                <div class="progress-bar progress-bar-aqua" style="width: 20%"
                                                     role="progressbar" aria-valuenow="20" aria-valuemin="0"
                                                     aria-valuemax="100">
                                                    <span class="sr-only">20% Complete</span>
                                                </div>
                                            </div>
                                        </a>
                                    </li>
                                    <!-- end task item -->
                                    <li>
                                        <!-- Task item -->
                                        <a href="#">
                                            <h3>
                                                Create a nice theme
                                                <small class="pull-right">40%</small>
                                            </h3>
                                            <div class="progress xs">
                                                <div class="progress-bar progress-bar-green" style="width: 40%"
                                                     role="progressbar" aria-valuenow="20" aria-valuemin="0"
                                                     aria-valuemax="100">
                                                    <span class="sr-only">40% Complete</span>
                                                </div>
                                            </div>
                                        </a>
                                    </li>
                                    <!-- end task item -->
                                    <li>
                                        <!-- Task item -->
                                        <a href="#">
                                            <h3>
                                                Some task I need to do
                                                <small class="pull-right">60%</small>
                                            </h3>
                                            <div class="progress xs">
                                                <div class="progress-bar progress-bar-red" style="width: 60%"
                                                     role="progressbar" aria-valuenow="20" aria-valuemin="0"
                                                     aria-valuemax="100">
                                                    <span class="sr-only">60% Complete</span>
                                                </div>
                                            </div>
                                        </a>
                                    </li>
                                    <!-- end task item -->
                                    <li>
                                        <!-- Task item -->
                                        <a href="#">
                                            <h3>
                                                Make beautiful transitions
                                                <small class="pull-right">80%</small>
                                            </h3>
                                            <div class="progress xs">
                                                <div class="progress-bar progress-bar-yellow" style="width: 80%"
                                                     role="progressbar" aria-valuenow="20" aria-valuemin="0"
                                                     aria-valuemax="100">
                                                    <span class="sr-only">80% Complete</span>
                                                </div>
                                            </div>
                                        </a>
                                    </li>
                                    <!-- end task item -->
                                </ul>
                            </li>
                            <li class="footer">
                                <a href="#">View all tasks</a>
                            </li>
                        </ul>
                    </li>
                    <!-- User Account: style can be found in dropdown.less -->
                    <li class="dropdown user user-menu">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                            <img src="img/user2-160x160.jpg" class="user-image" alt="User Image">
                            <span class="hidden-xs">张猿猿</span>
                        </a>
                        <ul class="dropdown-menu">
                            <!-- User image -->
                            <li class="user-header">
                                <img src="img/user2-160x160.jpg" class="img-circle" alt="User Image">

                                <p>
                                    张猿猿 - 数据管理员
                                    <small>最后登录 11:20AM</small>
                                </p>
                            </li>

                            <!-- Menu Footer-->
                            <li class="user-footer">
                                <div class="pull-left">
                                    <a href="#" class="btn btn-default btn-flat">修改密码</a>
                                </div>
                                <div class="pull-right">
                                    <a href="#" class="btn btn-default btn-flat">注销</a>
                                </div>
                            </li>
                        </ul>
                    </li>

                </ul>
            </div>
        </nav>
    </header>
    <!-- 页面头部 /-->

    <!-- 导航侧栏 -->
    <aside class="main-sidebar">
        <!-- sidebar: style can be found in sidebar.less -->
        <section class="sidebar">
            <!-- Sidebar user panel -->
            <div class="user-panel">
                <div class="pull-left image">
                    <img src="img/user2-160x160.jpg" class="img-circle" alt="User Image">
                </div>
                <div class="pull-left info">
                    <p>张猿猿</p>
                    <a href="#"><i class="fa fa-circle text-success"></i> 在线</a>
                </div>
            </div>
            <!-- search form -->
            <!--<form action="#" method="get" class="sidebar-form">
        <div class="input-group">
            <input type="text" name="q" class="form-control" placeholder="搜索...">
            <span class="input-group-btn">
            <button type="submit" name="search" id="search-btn" class="btn btn-flat"><i class="fa fa-search"></i>
            </button>
          </span>
        </div>
    </form>-->
            <!-- /.search form -->


            <!-- sidebar menu: : style can be found in sidebar.less -->
            <ul class="sidebar-menu">
                <li class="header">菜单</li>

                <li id="admin-index"><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> <span>首页</span></a>
                </li>

                <!-- 菜单 -->


                <li class="treeview">
                    <a href="#">
                        <i class="fa fa-folder"></i> <span>用户管理</span>
                        <span class="pull-right-container">
                        <i class="fa fa-angle-left pull-right"></i>
                    </span>
                    </a>
                    <ul class="treeview-menu">

                        <li id="admin-login">
                            <a href="all-admin-login.html">
                                <i class="fa fa-circle-o"></i> 查询所有用户
                            </a>
                        </li>

                    </ul>
                </li>

                <!-- 菜单 /-->
            </ul>
        </section>
        <!-- /.sidebar -->
    </aside>
    <!-- 导航侧栏 /-->

    <!-- 内容区域 -->
    <!-- @@master = admin-layout.html-->
    <!-- @@block = content -->

    <div class="content-wrapper">

        <!-- 内容头部 -->
        <section class="content-header">
            <h1>
                数据管理
                <small>数据列表</small>
            </h1>
            <ol class="breadcrumb">
                <li><a href="#"><i class="fa fa-dashboard"></i> 首页</a></li>
                <li><a href="#">数据管理</a></li>
                <li class="active">数据列表</li>
            </ol>
        </section>
        <!-- 内容头部 /-->

        <!-- 正文区域 -->
        <section class="content">

            <!-- .box-body -->
            <div class="box box-primary">
                <div class="box-header with-border">
                    <h3 class="box-title">列表</h3>
                </div>

                <div class="box-body">

                    <!-- 数据表格 -->
                    <div class="table-box">

                        <!--工具栏-->
                        <div class="pull-left">
                            <div class="form-group form-inline">
                                <div class="btn-group">
                                    <button type="button" class="btn btn-default" title="新建"><i
                                            class="fa fa-file-o"></i> 新建
                                    </button>
                                    <button type="button" class="btn btn-default" title="删除"><i
                                            class="fa fa-trash-o"></i> 删除
                                    </button>
                                    <button type="button" class="btn btn-default" title="开启"><i class="fa fa-check"></i>
                                        开启
                                    </button>
                                    <button type="button" class="btn btn-default" title="屏蔽"><i class="fa fa-ban"></i>
                                        屏蔽
                                    </button>
                                    <button type="button" class="btn btn-default" title="刷新"><i
                                            class="fa fa-refresh"></i> 刷新
                                    </button>
                                </div>
                            </div>
                        </div>
                        <div class="box-tools pull-right">
                            <div class="has-feedback">
                                <input type="text" class="form-control input-sm" placeholder="搜索">
                                <span class="glyphicon glyphicon-search form-control-feedback"></span>
                            </div>
                        </div>
                        <!--工具栏/-->

                        <!--数据列表-->
                        <table id="dataList" class="table table-bordered table-striped table-hover dataTable">
                            <thead>
                            <tr>
                                <th class="" style="padding-right:0px;">
                                    <input id="selall" type="checkbox" class="icheckbox_square-blue">
                                </th>
                                <th class="sorting_asc">ID</th>
                                <th class="sorting_desc">用户名</th>
                                <th class="sorting_asc sorting_asc_disabled">密码</th>
                                <th class="sorting_desc sorting_desc_disabled">性别</th>
                                <th class="sorting">年龄</th>
                                <th class="text-center sorting">邮箱</th>
                                <th class="text-center">操作</th>
                            </tr>
                            </thead>
                            <tbody>

                            <tr v-for="u in userList">
                                <td><input name="ids" type="checkbox"></td>
                                <td>{{u.id}}</td>
                                <td>{{u.username}}
                                </td>
                                <td>{{u.password}}</td>
                                <td>{{u.sex}}</td>
                                <td>{{u.age}}</td>
                                <td class="text-center">{{u.email}}</td>
                                <td class="text-center">
                                    <button type="button" class="btn bg-olive btn-xs">详情</button>
                                    <button type="button" class="btn bg-olive btn-xs" @click="findById(u.id)">编辑</button>
                                </td>
                            </tr>

                            </tbody>
                            <!--模态窗口-->
                            <div class="tab-pane" id="tab-model">

                                <div id="myModal" class="modal modal-primary" role="dialog">
                                    <div class="modal-dialog modal-lg">
                                        <div class="modal-content">
                                            <div class="modal-header">
                                                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                                    <span aria-hidden="true">×</span></button>
                                                <h4 class="modal-title">用户信息</h4>
                                            </div>
                                            <div class="modal-body">

                                                <div class="box-body">
                                                    <div class="form-horizontal">


                                                        <div class="form-group">
                                                            <label class="col-sm-2 control-label">用户名:</label>
                                                            <div class="col-sm-5">
                                                                <input type="text" class="form-control" v-model="user.username">
                                                            </div>
                                                        </div>
                                                        <div class="form-group">
                                                            <label class="col-sm-2 control-label">密码:</label>
                                                            <div class="col-sm-5">
                                                                <input type="text" class="form-control" v-model="user.password">
                                                            </div>
                                                        </div>
                                                        <div class="form-group">
                                                            <label class="col-sm-2 control-label">性别:</label>
                                                            <div class="col-sm-5">
                                                                <input type="text" class="form-control" v-model="user.sex">
                                                            </div>
                                                        </div>
                                                        <div class="form-group">
                                                            <label class="col-sm-2 control-label">年龄:</label>
                                                            <div class="col-sm-5">
                                                                <input type="text" class="form-control" v-model="user.age">
                                                            </div>
                                                        </div>
                                                        <div class="form-group">
                                                            <label class="col-sm-2 control-label">邮箱:</label>
                                                            <div class="col-sm-5">
                                                                <input type="text" class="form-control" v-model="user.email">
                                                            </div>
                                                        </div>
                                                    </div>
                                                </div>

                                            </div>
                                            <div class="modal-footer">
                                                <button type="button" class="btn btn-outline" data-dismiss="modal">关闭</button>
                                                <button type="button" class="btn btn-outline" data-dismiss="modal" @click="update">修改</button>
                                            </div>
                                        </div>
                                        <!-- /.modal-content -->
                                    </div>

                                    <!-- /.modal-dialog -->
                                </div>
                                <!-- /.modal -->
                            </div>
                            <!--模态窗口/-->
                        </table>
                        <!--数据列表/-->

                        <!--工具栏-->
                        <div class="pull-left">
                            <div class="form-group form-inline">
                                <div class="btn-group">
                                    <button type="button" class="btn btn-default" title="新建"><i
                                            class="fa fa-file-o"></i> 新建
                                    </button>
                                    <button type="button" class="btn btn-default" title="删除"><i
                                            class="fa fa-trash-o"></i> 删除
                                    </button>
                                    <button type="button" class="btn btn-default" title="开启"><i class="fa fa-check"></i>
                                        开启
                                    </button>
                                    <button type="button" class="btn btn-default" title="屏蔽"><i class="fa fa-ban"></i>
                                        屏蔽
                                    </button>
                                    <button type="button" class="btn btn-default" title="刷新"><i
                                            class="fa fa-refresh"></i> 刷新
                                    </button>
                                </div>
                            </div>
                        </div>
                        <div class="box-tools pull-right">
                            <div class="has-feedback">
                                <input type="text" class="form-control input-sm" placeholder="搜索">
                                <span class="glyphicon glyphicon-search form-control-feedback"></span>
                            </div>
                        </div>
                        <!--工具栏/-->



                    </div>
                    <!-- 数据表格 /-->


                </div>
                <!-- /.box-body -->

                <!-- .box-footer-->
                <div class="box-footer">
                    <div class="pull-left">
                        <div class="form-group form-inline">
                            总共2 页，共14 条数据。 每页
                            <select class="form-control">
                                <option>1</option>
                                <option>2</option>
                                <option>3</option>
                                <option>4</option>
                                <option>5</option>
                            </select> 条
                        </div>
                    </div>

                    <div class="box-tools pull-right">
                        <ul class="pagination">
                            <li>
                                <a href="#" aria-label="Previous">首页</a>
                            </li>
                            <li><a href="#">上一页</a></li>
                            <li><a href="#">1</a></li>
                            <li><a href="#">2</a></li>
                            <li><a href="#">3</a></li>
                            <li><a href="#">4</a></li>
                            <li><a href="#">5</a></li>
                            <li><a href="#">下一页</a></li>
                            <li>
                                <a href="#" aria-label="Next">尾页</a>
                            </li>
                        </ul>
                    </div>

                </div>
                <!-- /.box-footer-->


            </div>

        </section>
        <!-- 正文区域 /-->

    </div>
    <!-- @@close -->
    <!-- 内容区域 /-->

    <!-- 底部导航 -->
    <footer class="main-footer">
        <div class="pull-right hidden-xs">
            <b>Version</b> 1.0.8
        </div>
        <strong>Copyright © 2014-2017 <a href="http://www.itcast.cn">研究院研发部</a>.</strong> All rights reserved.
    </footer>
    <!-- 底部导航 /-->

</div>


<script src="plugins/jQuery/jquery-2.2.3.min.js"></script>
<script src="plugins/jQueryUI/jquery-ui.min.js"></script>
<script>
    $.widget.bridge('uibutton', $.ui.button);
</script>
<script src="plugins/bootstrap/js/bootstrap.min.js"></script>
<script src="plugins/raphael/raphael-min.js"></script>
<script src="plugins/morris/morris.min.js"></script>
<script src="plugins/sparkline/jquery.sparkline.min.js"></script>
<script src="plugins/jvectormap/jquery-jvectormap-1.2.2.min.js"></script>
<script src="plugins/jvectormap/jquery-jvectormap-world-mill-en.js"></script>
<script src="plugins/knob/jquery.knob.js"></script>
<script src="plugins/daterangepicker/moment.min.js"></script>
<script src="plugins/daterangepicker/daterangepicker.js"></script>
<script src="plugins/daterangepicker/daterangepicker.zh-CN.js"></script>
<script src="plugins/datepicker/bootstrap-datepicker.js"></script>
<script src="plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
<script src="plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.all.min.js"></script>
<script src="plugins/slimScroll/jquery.slimscroll.min.js"></script>
<script src="plugins/fastclick/fastclick.js"></script>
<script src="plugins/iCheck/icheck.min.js"></script>
<script src="plugins/adminLTE/js/app.min.js"></script>
<script src="plugins/treeTable/jquery.treetable.js"></script>
<script src="plugins/select2/select2.full.min.js"></script>
<script src="plugins/colorpicker/bootstrap-colorpicker.min.js"></script>
<script src="plugins/bootstrap-wysihtml5/bootstrap-wysihtml5.zh-CN.js"></script>
<script src="plugins/bootstrap-markdown/js/bootstrap-markdown.js"></script>
<script src="plugins/bootstrap-markdown/locale/bootstrap-markdown.zh.js"></script>
<script src="plugins/bootstrap-markdown/js/markdown.js"></script>
<script src="plugins/bootstrap-markdown/js/to-markdown.js"></script>
<script src="plugins/ckeditor/ckeditor.js"></script>
<script src="plugins/input-mask/jquery.inputmask.js"></script>
<script src="plugins/input-mask/jquery.inputmask.date.extensions.js"></script>
<script src="plugins/input-mask/jquery.inputmask.extensions.js"></script>
<script src="plugins/datatables/jquery.dataTables.min.js"></script>
<script src="plugins/datatables/dataTables.bootstrap.min.js"></script>
<script src="plugins/chartjs/Chart.min.js"></script>
<script src="plugins/flot/jquery.flot.min.js"></script>
<script src="plugins/flot/jquery.flot.resize.min.js"></script>
<script src="plugins/flot/jquery.flot.pie.min.js"></script>
<script src="plugins/flot/jquery.flot.categories.min.js"></script>
<script src="plugins/ionslider/ion.rangeSlider.min.js"></script>
<script src="plugins/bootstrap-slider/bootstrap-slider.js"></script>
<script src="plugins/bootstrap-datetimepicker/bootstrap-datetimepicker.js"></script>
<script src="plugins/bootstrap-datetimepicker/locales/bootstrap-datetimepicker.zh-CN.js"></script>
<script src="js/vuejs-2.5.16.js"></script>
<script src="js/axios-0.18.0.js"></script>
<script src="js/user.js"></script>
<script>
    $(document).ready(function () {
        // 选择框
        $(".select2").select2();

        // WYSIHTML5编辑器
        $(".textarea").wysihtml5({
            locale: 'zh-CN'
        });
    });


    // 设置激活菜单
    function setSidebarActive(tagUri) {
        var liObj = $("#" + tagUri);
        if (liObj.length > 0) {
            liObj.parent().parent().addClass("active");
            liObj.addClass("active");
        }
    }


    $(document).ready(function () {

        // 激活导航位置
        setSidebarActive("admin-datalist");

        // 列表按钮
        $("#dataList td input[type='checkbox']").iCheck({
            checkboxClass: 'icheckbox_square-blue',
            increaseArea: '20%'
        });
        // 全选操作
        $("#selall").click(function () {
            var clicks = $(this).is(':checked');
            if (!clicks) {
                $("#dataList td input[type='checkbox']").iCheck("uncheck");
            } else {
                $("#dataList td input[type='checkbox']").iCheck("check");
            }
            $(this).data("clicks", !clicks);
        });
    });
</script>
</body>

</html>

5.4.2 user.js页面

new Vue({
    el:"#app",
    data:{
        user:{
            id:"",
            username:"",
            password:"",
            email:"",
            age:"",
            sex:""
        },
        userList:[]
    },
    methods:{
        findAll:function (){
            //在当前方法中定义一个变量，表明是vue对象
            var _this = this;
            axios.get('/user/findAll.do')
                .then(function (response){
                    //handle success
                    _this.userList = response.data;  //响应数据给userList赋值
                    console.log(response);
                })
                .cache(function (error){
                    //handle error
                    console.log(error);
                })
        },
        findById:function (userid){
            //在当前方法中定义一个变量，表明是vue对象
            var _this = this;
            axios.get('/user/findById.do',{params:{id:userid}})
                .then(function (response){
                    //handle success
                    _this.user = response.data;  //响应数据给userList赋值
                    $("#myModal").modal("show");
                })
                .cache(function (error){
                    //handle error
                    console.log(error);
                })
        },
        update:function (user){//post请求
            var _this = this;
            axios.post('/user/updateUser.do',_this.user)
                .then(function (response){
                    _this.findAll();
                })
                .cache(function (error){
                    //handle error
                    console.log(error);
                })

        }
    },
    created(){   //当我们页面加载的时候触发请求，查询所有
        this.findAll();
    }
});

上述案例项目已上传至码云添加链接描述

所遇问题与解决方案

问题1

vue使用v-on绑定事件时可以正常使用，但是报错namespace ‘v-on’ is not bound

Vue嵌入Java代码 vue java_html_06

解决方案1

在setting->Editor->inspections->XML中去掉Unbound XML namespace prefix后面的对钩。问题解决。

Vue嵌入Java代码 vue java_java_07

解决方案2

@事件名称就是 v-on：事件名称的简写方式
@mouseover 就等同于 v-on:mouseover
这样也可以解决报红问题。

v-on简写方式

<!-- 完整语法 -->
<a v-on:click="doSomething">...</a>
<!-- 缩写 -->
<a @click="doSomething">...</a>

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