关于spring:SpringMybatis

导包

<dependencies>     <dependency>         <groupId>junit</groupId>         <artifactId>junit</artifactId>         <version>4.12</version>     </dependency>     <dependency>         <groupId>mysql</groupId>         <artifactId>mysql-connector-java</artifactId>         <version>5.1.47</version>     </dependency>     <dependency>         <groupId>org.mybatis</groupId>         <artifactId>mybatis</artifactId>         <version>3.5.2</version>     </dependency>     <dependency>         <groupId>org.springframework</groupId>         <artifactId>spring-webmvc</artifactId>         <version>5.1.9.RELEASE</version>     </dependency>     <!--Spring操作数据库的话，还须要一个spring-jdbc-->     <dependency>         <groupId>org.springframework</groupId>         <artifactId>spring-jdbc</artifactId>         <version>5.1.9.RELEASE</version>     </dependency>     <dependency>         <groupId>org.aspectj</groupId>         <artifactId>aspectjweaver</artifactId>         <version>1.8.13</version>     </dependency>     <dependency>         <groupId>org.mybatis</groupId>         <artifactId>mybatis-spring</artifactId>         <version>2.0.2</version>     </dependency>     <dependency>         <groupId>org.projectlombok</groupId>         <artifactId>lombok</artifactId>         <version>1.18.10</version>     </dependency> </dependencies>

编写数据源配置

<!--DataSource:应用Spring的数据源替换Mybatis的配置 c3p0 dbcp druid咱们这里应用Spring提供的JDBC:org.springframework.jdbc.datasource--><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"/> <property name="username" value="root"/> <property name="password" value="196840xrk"/></bean>

sqlSessionFactory

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="datasource"/> <!--绑定Mybatis配置文件--> <property name="configLocation" value="classpath:mybatis-config.xml"/> <property name="mapperLocations" value="classpath:com/sunfl/mapper/*.xml"/></bean>

sqlSessionTemplate

<!--SqlSessionTemplate就是咱们应用的sqlSession--><bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> <!--只能应用结构器注入sqlSessionFactory，因为它没有set办法--> <constructor-arg index="0" ref="sqlSessionFactory"/></bean>

须要给接口增加实现类

public class UserMapperImpl implements UserMapper{ //咱们的所有操作，在原来都应用sqlSession来执行，当初都应用SqlSessionTemple private SqlSessionTemplate sqlSession; public void setSqlSession(SqlSessionTemplate sqlSession) {     this.sqlSession = sqlSession; } public List<User> selectUser() {     UserMapper mapper = sqlSession.getMapper(UserMapper.class);     return mapper.selectUser(); }}

将本人写的实现类注入到spring中

<bean id="userMapper" class="com.sunfl.mapper.UserMapperImpl"> <property name="sqlSession" ref="sqlSession"/></bean>

测试应用

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");UserMapper userMapper = context.getBean("userMapper", UserMapper.class);List<User> userList = userMapper.selectUser();for (User user : userList) { System.out.println(user);}