110_SSM框架

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mob6047570116b7 2021-09-12 16:30:00

文章标签 spring xml java mvc 配置文件 文章分类 后端开发

需求分析->功能设计->数据库设计
环境要求

环境
要求

数据库环境
基本环境搭建

创建maven项目
pom.xml添加依赖，添加资源导出
idea连接数据库

提交项目到Git
创建基础包
创建配置文件

db.properties
mybatis-config.xml
applicationContext.xml

创建实体类
创建Mapper接口和Mapper.xml

注册Mapper到mybatis-config.xml

创建Service接口和实现类
Spring配置文件

创建配置文件 spring-dao.xml
创建配置文件 spring-service.xml
创建配置文件 spring-mvc.xml
applicationContext.xml导入spring-dao.xml spring-service.xml spring-mvc.xml

项目添加web框架支持

配置web.xml

创建Controller
创建首页和书库页
Artifacts中WEB-INF下创建lib，并选择jar
配置Tomcat，并测试

需求分析->功能设计->数据库设计环境要求

环境

IDEA
MySQL 5.7.19
Tomcat 9
Maven 3.6

要求

熟练掌握MySQL数据库
熟练掌握Spring，JavaWeb及MyBatis知识
简单的前端知识

数据库环境

CREATE DATABASE `ssm`CHARACTER SET utf8 COLLATE utf8_general_ci; 

USE `ssm`; 

CREATE TABLE `ssm`.`books` ( `book_id` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id', `book_name` VARCHAR(100) NOT NULL COMMENT '书名', `book_count` INT(10) NOT NULL COMMENT '数量', `book_detail` VARCHAR(1000) NOT NULL COMMENT '描述', PRIMARY KEY (`book_id`) ) ENGINE=INNODB CHARSET=utf8 COLLATE=utf8_general_ci; 

INSERT INTO `ssm`.`books` (`book_name`, `book_count`, `book_detail`) VALUES ('Java', '1', '从入门到放弃'); 
INSERT INTO `ssm`.`books` (`book_name`, `book_count`, `book_detail`) VALUES ('MySQL', '11', '从删库到跑路'); 
INSERT INTO `ssm`.`books` (`book_name`, `book_count`, `book_detail`) VALUES ('Linux', '5', 'j'); 

SELECT * FROM books LIMIT 0, 1000;

110_SSM框架_配置文件

基本环境搭建

创建maven项目

110_SSM框架_java_02

110_SSM框架_java_03

pom.xml添加依赖，添加资源导出

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.qing</groupId>
<artifactId>ssm</artifactId>
<version>1.0-SNAPSHOT</version>

<dependencies>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.49</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.7</version>
<scope>runtime</scope>
</dependency>

</dependencies>

<!--配置resources，防止资源导出失败问题-->
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>

idea连接数据库

110_SSM框架_配置文件_04

110_SSM框架_spring_05

提交项目到Git

git@gitee.com:wl3pbzhyq/ssm.git

创建基础包

110_SSM框架_spring_06

创建配置文件

110_SSM框架_java_07

db.properties

driver=com.mysql.jdbc.Driver
# 如果使用的是MySQL8.0+，增加一个时区的配置：&serverTimezone=Asia/Shanghai
url=jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=UTF-8
username=root
password=123456

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">

<!--核心配置文件-->
<configuration>
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
<!--开启驼峰映射-->
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>

<!--别名-->
<typeAliases>
<package name="com.qing.pojo"/>
</typeAliases>

</configuration>

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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">



</beans>

创建实体类

package com.qing.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
private int bookId;
private String bookName;
private int bookCount;
private String bookDetail;
}

创建Mapper接口和Mapper.xml

110_SSM框架_mvc_08

package com.qing.dao;

import com.qing.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface BooksMapper {

/**
* 新增书
* @param books
* @return
*/
int add(Books books);

/**
* 根据Id删除书
* @param bookId
* @return
*/
int deleteById(@Param("bookId") int bookId);

/**
* 修改书
* @param books
* @return
*/
int update(Books books);

/**
* 根据Id获取书
* @param bookId
* @return
*/
Books getBooksById(@Param("bookId") int bookId);

/**
* 获取全部书
* @return
*/
List<Books> listBooks();
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.qing.dao.BooksMapper">
<!--新增书-->
<insert id="add" parameterType="Books">
        insert into ssm.books(book_name, book_count, book_detail)
        values (#{bookName},#{bookCount},#{bookDetail})
</insert>
<!--根据Id删除书-->
<delete id="deleteById" parameterType="int">
        delete from ssm.books where book_id = #{bookId}
</delete>
<!--修改书-->
<update id="update" parameterType="Books">
        update ssm.books
        set book_name=#{bookName},book_count=#{bookCount},book_detail=#{bookDetail}
        where book_id=#{bookId}
</update>
<!--根据Id获取书-->
<select id="getBooksById" parameterType="int" resultType="Books">
        select * from ssm.books
        where book_id=#{bookId}
</select>
<!--获取全部书-->
<select id="listBooks" resultType="Books">
        select * from ssm.books
</select>
</mapper>

注册Mapper到mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">

<!--核心配置文件-->
<configuration>
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>

<!--别名-->
<typeAliases>
<package name="com.qing.pojo"/>
</typeAliases>

<!-- 将包内的映射器接口实现全部注册为映射器 -->
<mappers>
<package name="com.qing.dao"/>
</mappers>

</configuration>

创建Service接口和实现类

110_SSM框架_xml_09

package com.qing.service;

import com.qing.pojo.Books;

import java.util.List;

public interface BooksService {
/**
* 新增书
* @param books
* @return
*/
int add(Books books);

/**
* 根据Id删除书
* @param bookId
* @return
*/
int deleteById(int bookId);

/**
* 修改书
* @param books
* @return
*/
int update(Books books);

/**
* 根据Id获取书
* @param bookId
* @return
*/
Books getBooksById(int bookId);

/**
* 获取全部书
* @return
*/
List<Books> listBooks();
}

package com.qing.service;

import com.qing.dao.BooksMapper;
import com.qing.pojo.Books;

import java.util.List;

public class BooksServiceImpl implements BooksService {

// service调dao层，组合Dao
private BooksMapper booksMapper;

public void setBooksMapper(BooksMapper booksMapper) {
this.booksMapper = booksMapper;
    }

public int add(Books books) {
return booksMapper.add(books);
    }

public int deleteById(int bookId) {
return booksMapper.deleteById(bookId);
    }

public int update(Books books) {
return booksMapper.update(books);
    }

public Books getBooksById(int bookId) {
return booksMapper.getBooksById(bookId);
    }

public List<Books> listBooks() {
return booksMapper.listBooks();
    }
}

Spring配置文件

110_SSM框架_spring_10

创建配置文件 spring-dao.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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

<!--关联数据库配置文件-->
<context:property-placeholder location="classpath:db.properties"/>

<!--连接池
dbcp: 半自动化操作，不能自动连接
c3p0: 自动化操作，自动化的加载配置文件，并且可以自动设置到对象中
druid : hikari
-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>

<!--c3p0连接池的私有属性-->
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<!--关闭连接后不自动commit-->
<property name="autoCommitOnClose" value="false"/>
<!--获取连接超时时间-->
<property name="checkoutTimeout" value="10000"/>
<!--获取连接失败重试次数-->
<property name="acquireRetryAttempts" value="2"/>
</bean>

<!--sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--绑定mybatis的配置文件-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>

<!--配置dao接口扫描包，动态的实现Dao接口注入到spring容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--注入sqlSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!--要扫描的dao包-->
<property name="basePackage" value="com.qing.dao"/>
</bean>

</beans>

创建配置文件 spring-service.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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd">

<!--扫描service下的包-->
<context:component-scan base-package="com.qing.service"/>

<!--将业务类注入到Spring，通过配置，也可以通过注解实现-->
<bean id="BookServiceImpl" class="com.qing.service.BooksServiceImpl">
<property name="booksMapper" ref="booksMapper"/>
</bean>

<!--声明式事务配置-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--注入数据源-->
<property name="dataSource" ref="dataSource"/>
</bean>

<!--aop事务支持-->
<!--结合aop实现事务的织入-->
<!--配置事务通知-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<!--给那些方法配置事务-->
<!--配置事务的传播特性-->
<tx:attributes>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>

<!--配置事务切入-->
<aop:config>
<aop:pointcut id="txPointCout" expression="execution(* com.qing.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCout"/>
</aop:config>

</beans>

创建配置文件 spring-mvc.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://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
https://www.springframework.org/schema/context/spring-context.xsd">

<!--注解驱动-->
<mvc:annotation-driven/>
<!--静态资源过滤-->
<mvc:default-servlet-handler/>
<!--扫描包-->
<context:component-scan base-package="com.qing.controller"/>
<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>

</beans>

applicationContext.xml导入spring-dao.xml spring-service.xml spring-mvc.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">

<import resource="classpath:spring-dao.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-mvc.xml"/>

</beans>

项目添加web框架支持

110_SSM框架_java_11

110_SSM框架_java_12

配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">

<!--DispatchServlet-->
<servlet>
<servlet-name>spingmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spingmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!--乱码过滤-->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>

创建Controller

package com.qing.controller;

import com.qing.pojo.Books;
import com.qing.service.BooksService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

@Controller
@RequestMapping("/books")
public class BooksController {

@Autowired
@Qualifier("BookServiceImpl")
private BooksService booksService;

@RequestMapping("/listBooks")
public String listBooks(Model model) {
List<Books> list = booksService.listBooks();
model.addAttribute("list",list);
return "listBooks";
    }
}

创建首页和书库页

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>首页</title>
</head>
<body>
<h1><a href="${pageContext.request.contextPath}/books/listBooks">进入书库</a></h1>
</body>
</html>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>书库</title>
</head>
<body>
<h1>书库</h1>
<div>
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍编号</th>
<th>书籍名称</th>
<th>书籍数量</th>
<th>书籍描述</th>
</tr>
</thead>
<tbody>
<c:forEach var="book" items="${list}">
<tr>
<td>${book.bookId}</td>
<td>${book.bookName}</td>
<td>${book.bookCount}</td>
<td>${book.bookDetail}</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</body>
</html>

Artifacts中WEB-INF下创建lib，并选择jar

110_SSM框架_配置文件_13

配置Tomcat，并测试

110_SSM框架_spring_14

110_SSM框架_xml_15

110_SSM框架_配置文件_16

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110_SSM框架

110_SSM框架

环境

要求

创建maven项目

pom.xml添加依赖，添加资源导出

idea连接数据库

db.properties

mybatis-config.xml

applicationContext.xml

注册Mapper到mybatis-config.xml

创建配置文件 spring-dao.xml

创建配置文件 spring-service.xml

创建配置文件 spring-mvc.xml

applicationContext.xml导入spring-dao.xml spring-service.xml spring-mvc.xml

配置web.xml

51CTO博客