MyBatis与Spring整合细节的优化 整合过程参考
优化部分：spring中配置接口扫描
<!-- mapper的配置 name:根据接口生成代理对象 <bean id="userMaper" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="com.hl.ld.mapper.UserMapper"/> <property name="sqlSessionFactory" ref="sqlSessionFactory"/> </bean> --> <!-- 一个一个接口配置太繁琐了，自动扫描mapper接口 也需要遵循mapper开发规范 sqlSessionFactoryBeanName --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 指定扫描的包名 扫描多个包用半角逗号隔开 获取mapper时是mapper接口名的首字母小写 --> <property name="basePackage" value="com.hl.ld.mapper"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean>
测试：优化部分，接口的id为接口名首字母小写
package com.hl.ld.test;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.hl.ld.mapper.UserMapper;
import com.hl.ld.pojo.User;
public class SpringMybatisTest {
private ApplicationContext applicationContext;
@Before
public void before(){
String configLocation = "classpath:spring/applicationContext.xml";
//获取spring容器
applicationContext = new ClassPathXmlApplicationContext(configLocation);
}
@Test
public void testFindUserById() throws Exception{
UserMapper userMaper = (UserMapper) applicationContext.getBean("userMapper");
User user = userMaper.findUserById(3);
System.out.println(user);
}
}