需要先配置这个xml基于mybtis的XML配置，完成对mySql数据库的SQL语句配置_你挚爱的强哥❤给你发来1条消息❤-CSDN博客<!--mapper.xml--><?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.kihong.mapper.UserMapper">.https://s-z-q.blog.csdn.net/article/details/122758483

/*声明SQL Session对象*/
SqlSession sqlSession = new SqlSessionFactoryBuilder().build(Resources.getResourceAsReader("mybatis-config.xml")).openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
List<Users> u = mapper.selectAll();
for (Users a : u) System.out.println(a.name);System.out.println(mapper.select(55));
mapper.insert(new User("插入的姓名", 66));
mapper.delete(new User(55));
mapper.update(new User(60, "修改后的姓名", 33));
sqlSession.commit();sqlSession.close();