****************修改用户****************

1> HelloMyBatis.java

class HelloMyBaties{

  @Test
  public void Test4() throws IOException{
    //配置文件
    String resource = "sqlMapConfig.xml";
    //读取配置文件
    InputStream in = Resources.getResourceAsStream(resource);

    //sqlSessionFactoryBuilder
    SqlSessionFactoruBuilder ssfb = new sqlSessionFactoryBuilder();

    //创建sqlSessionFactory
    SqlSessionFactory ssf = ssfb.builder(in);

    //生成一个sqlSession
    SqlSession session = ssf.openSession();

    //操作数据(原id=13的是小明)
    User user = new User();
    user.setU_id(13);
    user.setU_username("张飞");
    user.setU_password("111111");
    user.setU_sex("2");
    
    session.update("UserMapper.updateUser",user);
    session.commit();
  }
}

2> UserMapper.xml

<!-- 修改用户 -->
<update id="updateUser" parameterType="com.XXX.bean.User">
  update user set u_username = #{u_username},u_password=#{u_password},u_sex=#{u_sex}
  where u_id = #{u_id}
</update>