ClassWork/UserDaoTest.java

package com.example.web;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.jupiter.api.Test;
 
public class UserDaoTest {
 
    @Test
    public void insert() throws IOException {
        //用PrintWriter架设一个管道，到mybatis-config.xml文件
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sessionFactory.openSession();
 
        sqlSession.insert("insert",new User1(1,"杨星","123"));
        sqlSession.commit();
    }
 
    @Test
    public void updateTest() throws IOException {
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sessionFactory.openSession();
 
        sqlSession.update("updateUser",new User1(3,"小俊俊","123"));
        sqlSession.commit();
    }
 
    @Test
    public void deleteTest() throws IOException {
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sessionFactory.openSession();
 
        sqlSession.delete("deleteUser",new User1(2));
        sqlSession.commit();
    }
 
    @Test
    public void seletTest() throws IOException {
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sessionFactory.openSession();
 
        List<Object> userList = sqlSession.selectList("selectAll");
        for (Object o : userList) {
            System.out.println(o);
        }
 
        User1 user = sqlSession.selectOne("selectUserById", 1);
        System.out.println(user);
        sqlSession.commit();
    }
}