mybatis系列教程(二)——spring整合mybatis

项目地址

项目地址：https://code.csdn.net/luo4105/study_mybatis/

Spring整合mybatis

实现

接着上节的思路，把数据源和mapper的映射配置在spring的配置文件，把SqlSessionFactory对象、SqlSession对象、UserMapper对象都在Spring中注册，实现spring整合mybatis。

项目结构

mvn依赖

<properties>
	<org.springframework-version>4.3.7.RELEASE</org.springframework-version>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<java-version>1.8</java-version>
</properties>

<dependencies>
	<!-- spring -->
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-aop</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-beans</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-context</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-core</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-expression</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-jdbc</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-test</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-tx</artifactId>
		<version>${org.springframework-version}</version>
	</dependency>
	<!-- spring -->
	
	<!-- mybatis -->
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.4.1</version>
	</dependency>
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis-spring</artifactId>
		<version>1.3.1</version>
	</dependency>
	<!-- mybatis -->
	
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.35</version>
	</dependency>
	
	<dependency>
		<groupId>commons-logging</groupId>
		<artifactId>commons-logging</artifactId>
		<version>1.2</version>
	</dependency>
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.12</version>
	</dependency>
</dependencies>

项目还是之前的项目，只是添加了

spring-config.xml ：spring的配置文件

UserMapperTestInSpring：配置测试类

spring-config.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
       http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.0.xsd">
 
    <!-- 配置数据源 -->
    <bean id="dataSource"
       class="org.springframework.jdbc.datasource.DriverManagerDataSource">
       <property name="driverClassName" value="com.mysql.jdbc.Driver" />
       <property name="url" value="jdbc:mysql://localhost:3306/study_mybatis"/>
       <property name="username" value="root"/>
       <property name="password" value="123456"/>
    </bean>
 
    <!-- 注册、配置sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
       <property name="dataSource" ref="dataSource" />
       <property name="mapperLocations" value="com/lc/mapper/*.xml" />
    </bean>
 
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
       <property name="basePackage" value="com.lc.dao" />
       <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>
</beans>

UserMapperTestInSpring

import java.util.List;
 
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
import com.lc.model.User;
 
public classUserMapperTestInSpring {
 
    private staticClassPathXmlApplicationContext context = null;
    private static UserMapper userMapper;
 
    static {
       context = newClassPathXmlApplicationContext("com/lc/config/spring-config.xml");
       context.start();
       userMapper = context.getBean(UserMapper.class);
    }
 
    @Test
    public void select() {
       List<User>userlist= userMapper.select();
       for (User user : userlist) {
           System.out.println(user);
       }
    }
 
    @Test
    public void delete() {
       if (userMapper.delete(1) >0) {
           System.out.println("del success");
       }
    }
}

运行

总结

注意配置中SqlSessionFactoryBean，它还有很多属性，如设置别名、设置mybatis配置文件(如果有)，详细的可以看看文档：http://javadox.com/org.mybatis/mybatis-spring/1.1.1/org/mybatis/spring/SqlSessionFactoryBean.html。