spring3+mybatis整合案例-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_9921/article/details/82647548

本文介绍了一个使用SpringMVC和MyBatis搭建的简单项目的配置过程，包括pom.xml依赖管理文件、springMVC-servlet.xml配置文件、applicationContext.xml配置文件、UserMapper.xml映射文件等关键组件。

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pom.xml


<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.chen</groupId>
  <artifactId>springmvc-mybatis-demo01</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
  	<defaultGoal>compile</defaultGoal>
  </build>
  <properties>
  	<spring.version>3.1.2.RELEASE</spring.version>
  </properties>

  <dependencies>
	  <!-- servlet -->
	  <dependency>
		<groupId>javax.servlet</groupId>
		<artifactId>javax.servlet-api</artifactId>
		<version>3.0.1</version>
	  </dependency>
	  <dependency>
		<groupId>jstl</groupId>
		<artifactId>jstl</artifactId>
		<version>1.2</version>
	  </dependency>
	  <dependency>
		<groupId>javax.servlet.jsp</groupId>
		<artifactId>jsp-api</artifactId>
		<version>2.1</version>
		<scope>provided</scope>
	  </dependency>

	  <!-- spring -->
	  <dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-context-support</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-orm</artifactId>
  		<version>${spring.version}</version>
  	 </dependency>

  	 <!-- aop -->
	 <dependency>
		<groupId>org.aspectj</groupId>
		<artifactId>aspectjweaver</artifactId>
		<version>1.8.4</version>
	 </dependency>

	 <!-- mybatis-spring -->
	 <dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis-spring</artifactId>
		<version>1.2.2</version>
	 </dependency>

	 <!-- mybatis -->
	 <dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.2.8</version>
	 </dependency>

	 <dependency>
        <groupId>asm</groupId>
        <artifactId>asm-commons</artifactId>
        <version>3.3.1</version>
    </dependency>
    <!-- 二级缓存ehcache -->
	<dependency>
		<groupId>net.sf.ehcache</groupId>
		<artifactId>ehcache</artifactId>
		<version>2.9.0</version>
	</dependency>

	<!-- dbcp -->
	<dependency>
		<groupId>commons-dbcp</groupId>
		<artifactId>commons-dbcp</artifactId>
		<version>1.4</version>
	</dependency>

	<!-- mysql连接 -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.34</version>
	</dependency>

	<!-- slf4j-log4j -->
    <dependency>  
        <groupId>org.slf4j</groupId>  
        <artifactId>slf4j-api</artifactId>  
        <version>1.7.2</version>  
    </dependency>  
    <dependency>  
        <groupId>org.slf4j</groupId>  
        <artifactId>slf4j-log4j12</artifactId>  
        <version>1.7.2</version>  
    </dependency>  
	<dependency>
		<groupId>log4j</groupId>
		<artifactId>log4j</artifactId>
		<version>1.2.17</version>
	</dependency>

	<!-- jackson -->
  	<dependency>
  		<groupId>com.fasterxml.jackson.core</groupId>
  		<artifactId>jackson-databind</artifactId>
  		<version>2.2.3</version>
  	</dependency>

	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.11</version>
	</dependency>
  </dependencies>

</project>

springMVC-servlet.xml


<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"   
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    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/context http://www.springframework.org/schema/context/spring-context.xsd  
    	http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="com.chen.controller"></context:component-scan>
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
		<property name="prefix" value="/WEB-INF/pages/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<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:context="http://www.springframework.org/schema/context"   
    xmlns:mvc="http://www.springframework.org/schema/mvc"
   	xmlns:aop="http://www.springframework.org/schema/aop" 
   	xmlns:tx="http://www.springframework.org/schema/tx"
    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/context http://www.springframework.org/schema/context/spring-context.xsd  
    	http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
    	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
    	http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
    	">

    <context:component-scan base-package="com.chen"></context:component-scan>
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    	<property name="driverClassName" value="${db.driver}" />
    	<property name="url" value="${db.url}" />
    	<property name="username" value="${db.username}" />
    	<property name="password" value="${db.password}" />

    	<property name="maxActive" value="${connection.maxActive}"></property>
		<property name="maxIdle" value="${connection.maxIdle}"></property>
		<property name="minIdle" value="${connection.minIdle}"></property>
		<property name="maxWait" value="${connection.maxWait}"></property>
    </bean>

    <!-- 配置sessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    	<property name="dataSource" ref="dataSource" />
    	<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
    </bean>

    <!-- 配置mapper即dao层 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    	<property name="basePackage" value="com.chen.dao" />
    	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

    <!-- 配置事务 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    	<property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 配置事务增强处理 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
    	<tx:attributes>
    		<tx:method name="find*" propagation="REQUIRED" read-only="true"/>
    		<tx:method name="save*" propagation="REQUIRED"/>
    		<tx:method name="delete*" propagation="REQUIRED"/>
    		<tx:method name="*"/>
    	</tx:attributes>
    </tx:advice>
    <!-- 应用事务 -->
    <aop:config>
    	<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.chen.service..*.*(..))"/>
    </aop:config>
    <!-- 可通过注解控制事务 --> 
    <tx:annotation-driven />
</beans>

UserMapper.xml


<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.chen.dao.UserMapper">
	<select id="findUserById" parameterType="long" resultType="com.chen.pojo.User">
		select * from t_user where id = #{id}
	</select>

</mapper>

pojo


package com.chen.pojo;

public class User {
	private Long id ;
	private String username; 
	private String address;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}

}

dao


package com.chen.dao;

import com.chen.pojo.User;

public interface UserMapper {

	public User findUserById(Long id);

}

service


package com.chen.service;

import com.chen.pojo.User;

public interface UserService { 

	public User getUser(Long id);
}


package com.chen.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.chen.dao.UserMapper;
import com.chen.pojo.User;
@Service
public class UserServiceImpl implements UserService {
	@Autowired
	private UserMapper userMapper;

	public User getUser(Long id) {
		return userMapper.findUserById(id);
	}

}

controller


package com.chen.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.chen.pojo.User;
import com.chen.service.UserService;


@Controller
@RequestMapping("/user")
public class UserController {
	@Autowired
	private UserService userService;

	@ResponseBody
	@RequestMapping("hello")
	public String hello(){
		return "hello";
	}

	@RequestMapping("index")
	public String index(){
		return "index";
	}

	@ResponseBody
	@RequestMapping("getUser")
	public User getUser(){
		User user =userService.getUser(1L);
		return user;
	}

}

详情见附件