目录

（1）insert测试方法

（2）delete测试方法

（3）update测试方法

（4）select测试方法 

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一定要记得注册映射

<mappers><package name="com.gq.mapper"/></mappers>

public interface UserMapper {@Select("select *from user")List<User> findAll();//添加用户@Insert("insert into user(username,sex,address) values(#{username},#{sex},#{address})")void add(User user);//删除用户，根据id@Delete("delete from user where id=#{id}")void delete(int id);//修改用户@Update("update user set username=#{username},sex=#{sex},address=#{address} where id=#{id}")void update(User user);
}

（1）insert测试方法

 @Testpublic void Test2() throws Exception {InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(is);SqlSession session = sqlSessionFactory.openSession();UserMapper userMapper=session.getMapper(UserMapper.class);List<User> userList=userMapper.findAll();userList.forEach(System.out::println);session.commit();session.close();is.close();}

（2）delete测试方法

@Testpublic void Test3() throws Exception {InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(is);SqlSession session = sqlSessionFactory.openSession();UserMapper userMapper=session.getMapper(UserMapper.class);User user=new User("洒洒水","男","厦门");userMapper.add(user);session.commit();session.close();is.close();}

（3）update测试方法

 @Testpublic void Test4() throws Exception {InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(is);SqlSession session = sqlSessionFactory.openSession();UserMapper userMapper=session.getMapper(UserMapper.class);userMapper.delete(16);session.commit();session.close();is.close();}

（4）select测试方法 

 @Testpublic void Test5() throws Exception {InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(is);SqlSession session = sqlSessionFactory.openSession();UserMapper userMapper=session.getMapper(UserMapper.class);User user=new User(17,"大大","女","北京");userMapper.update(user);session.commit();session.close();is.close();}