Spring-整合MyBatis

依赖

<dependencies><!--提供数据源--><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.1.9.RELEASE</version></dependency><!--提供sqlSessionFactory--><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>2.0.2</version></dependency><!--mybatis配置文件需要此依赖--><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.2</version></dependency><!--从上下文获取bean--><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.1.9.RELEASE</version></dependency><!--数据库驱动--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.47</version></dependency><!--aop切面支持--><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.13</version></dependency>
</dependencies>
<build><resources><resource><directory>src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource><resource><directory>src/main/resources</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource></resources>
</build>

配置文件

<?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 http://www.springframework.org/schema/beans/spring-beans.xsd"><!--使用Spring的数据源--><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/test?useSSL&amp;useUnicode=true&amp;charsetEncoding=UTF-8"/><property name="username" value="root"/><property name="password" value="root"/></bean><!--sqlSessionFactory--><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><!--配置数据源--><property name="dataSource" ref="dataSource"/><!--绑定mybatis配置文件--><property name="configLocation" value="classpath:mybatis-config.xml"/><!--mapper映射文件--><property name="mapperLocations" value="classpath:org/example/mapper/*.xml"/></bean><!--sqlSession--><bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"><!--构造器注入sqlSessionFactory--><constructor-arg index="0" ref="sqlSessionFactory"/></bean><!--注册bean，注入sqlSession--><bean id="userMapperImpl" class="org.example.mapper.UserMapperImpl"><property name="sqlSessionTemplate" ref="sqlSessionTemplate"/></bean><!--配置声明式事务，没有事务，报错也会提交DML语句--><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"/></bean><!--结合aop织入事务--><tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><!--配置事务的传播特性--><tx:method name="*" propagation="REQUIRED"/><tx:method name="query" read-only="true"/></tx:attributes></tx:advice><!--切入事务--><aop:config><aop:pointcut id="txPointCut" expression="execution(* org.example.mapper.*.*(..))"/><aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/></aop:config>
</beans>

mapper接口的实现

// 手动注入sqlSession或继承SqlSessionDaoSupport
public class UserMapperImpl extends SqlSessionDaoSupport implements UserMapper{/*private SqlSessionTemplate sqlSessionTemplate;public void setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate) {this.sqlSessionTemplate = sqlSessionTemplate;}*/@Overridepublic List<User> getUserList() {// return sqlSessionTemplate.getMapper(UserMapper.class).getUserList();return getSqlSession().getMapper(UserMapper.class).getUserList();}
}

测试

public static void main(String[] args) {ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");UserMapper userMapper = context.getBean("userMapperImpl", UserMapper.class);userMapper.getUserList();
}