【springmvc案例开发】

springmvc案例开发

• ​​springmvc案例开发​​

• ​​准备工作​​
• ​​框架搭建----->>>​​

springmvc案例开发

你好！ 看大这篇文章,可能你跟我一样是一个新手小白,但又不全是,这里认为你已经掌握了spring与mybatis的一些基础知识,想要整合spring与mybatis来开发springweb;

准备工作

任何开发之前都要又一些准备工作,开发之前的工作

框架搭建----->>>

其实在spring官网上可以直接下载一个框架,这里由于是入门级,所以还是自己手动搭建一个环境;

然后是添加依赖和配置文件

pom.xml

<?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.gavin</groupId>
  <artifactId>myweb3</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>
  <parent>
    <artifactId>SompleDemo</artifactId>
    <groupId>com.gavin</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
  </properties>

  <build>
    <plugins>
      <plugin>
        <!--插件坐标 -->
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.2</version>
        <!-- -->
        <configuration>
          <!-- 源代码使用JDK版本-->
          <source>11</source>
          <!-- 源代码编译为class文件的版本，要保持跟上面版本一致-->
          <target>11</target>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
    </plugins>

  </build>
  <dependencies>


    <dependency>
      <groupId>org.mybatis.caches</groupId>
      <artifactId>mybatis-ehcache</artifactId>
      <version>1.0.2</version>
    </dependency>

    <dependency>
      <groupId>net.sf.ehcache</groupId>
      <artifactId>ehcache</artifactId>
      <version>2.10.1</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-nop</artifactId>
      <version>1.7.2</version>

    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
    </dependency>

    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
    </dependency>

    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
    </dependency>

    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
    </dependency>

    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <scope>runtime</scope>
    </dependency>


    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
    </dependency>

    <dependency>
      <groupId>com.gitee.hengboy</groupId>
      <artifactId>mybatis-enhance-core</artifactId>
    </dependency>

    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
    </dependency>

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
    </dependency>


    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>org.apache.tomcat</groupId>
      <artifactId>tomcat-catalina</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>

    </dependency>
    <dependency>

      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>

    </dependency>

    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis.caches</groupId>
      <artifactId>mybatis-ehcache</artifactId>
    </dependency>
    <dependency>
      <groupId>net.sf.ehcache</groupId>
      <artifactId>ehcache</artifactId>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-nop</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.jboss/jboss-vfs -->
    <dependency>
      <groupId>org.jboss</groupId>
      <artifactId>jboss-vfs</artifactId>
      <version>3.2.15.Final</version>
    </dependency>


  </dependencies>
</project>

springmybatisconfig

<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--    引入外部配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!--  配置数据源   德鲁伊-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc_driver}"/>
        <property name="url" value="${jdbc_url}"/>
        <property name="username" value="${jdbc_username}"/>
        <property name="password" value="${jdbc_password}"/>
        <property name="maxActive" value="${jdbc_maxActive}"/>
        <property name="initialSize" value="${jdbc_initialSize}"/>
    </bean>

    <!--数据库实务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--       管理的数据源-->
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"/>
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" autowire="byName">
        <!--        配置数据源-->
        <property name="dataSource" ref="dataSource"/>
        <!--        配置mybatis核心配置文件位置-->
        <property name="configLocation" value="classpath:mybatisConfig.xml"/>
    </bean>
    <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate" autowire="byName">
        <constructor-arg index="0" ref="sqlSessionFactory"/>
        <constructor-arg value="SIMPLE"/>
    </bean>
    <bean id="bookstoreMapper"  class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="com.gavin.mapper.BookstoreMapper"/>
        <property name="sqlSessionTemplate" ref="sqlSessionTemplate"/>
    </bean>
    </bean>-->
    <!--扫描注解-->
    <context:component-scan base-package="com.gavin"/>
</beans>

mybatisconfig

<?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">
<configuration>
    <properties resource="jdbc.properties">

    </properties>
    <settings>
        <setting name="cacheEnabled" value="true"/>
        <setting name="defaultFetchSize" value="4"/>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
    <typeAliases>

         <package name="com.gavin.pojo"/>
    </typeAliases>

    <mappers>
       <package name="com.gavin"/>
    </mappers>
</configuration>

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">

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


</web-app>

controller层

package com.gavin.controller;

import com.gavin.mapper.BookstoreMapper;
import com.gavin.pojo.Bookstore;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller

@Transactional(propagation = Propagation.REQUIRED, isolation = Isolation.DEFAULT)
public class ControllerDemo {

  @Autowired
    private SqlSessionFactory sqlSessionFactory;
    @Autowired
    @Qualifier(value="sqlSessionFactory")
    public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
        this.sqlSessionFactory = sqlSessionFactory;
    }



    /**
     * @return 返回查询到的书籍信息
     */


    @RequestMapping(value ="/controller.do" ,method= RequestMethod.GET)
    public Object searchBookById(HttpServletRequest req, HttpServletResponse resp ) {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        String bookid = req.getParameter("bookid");
        int i = 0;
        if (null != bookid & "" != bookid) {
            try {
                i = Integer.parseInt(bookid);
            } catch (Exception e) {
                i = 1001;
            }
        }
        BookstoreMapper mapper = sqlSession.getMapper(BookstoreMapper.class);
        Bookstore bookstore = mapper.selectByBookId(i);
        ModelAndView model = new ModelAndView();
        model.addObject("bookInfo", bookstore);
        model.setViewName("book.jsp");
     sqlSession.close();
        return model;

    }
}

​​源代码---->>>​​