spring整合mybatis

文档链接：http://mybatis.org/spring/zh/index.html
环境准备：
导入依赖：

  
        
            junit
            junit
            4.13.2
        
        
            mysql
            mysql-connector-java
            8.0.28
        
        
            org.mybatis
            mybatis
            3.5.2
        
        
            org.springframework
            spring-webmvc
            5.3.15
        
        
            org.springframework
            spring-jdbc
            5.3.15
        
        
            org.aspectj
            aspectjweaver
            1.9.5
        
        
            org.mybatis
            mybatis-spring
            2.0.2
        
        
            org.projectlombok
            lombok
            1.18.22
        
    

注意点：

mybtis去创建sqlSessionFactory代码：

package com.mybatis.study.util;

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 java.io.InputStream;

public class MybatisUtils {
    private static  SqlSessionFactory sqlSessionFactory;

    static {


        try {
            String resource = "mybatis-config.xml";
            InputStream inputStream = Resources.getResourceAsStream(resource);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
    public static SqlSession getSqlSession(){
        return sqlSessionFactory.openSession(true);
    }


}

mybatis-spring创建sqlSessionFactory代码：

实现类

package com.spring.study.dao;

import com.spring.study.bean.User;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.support.SqlSessionDaoSupport;

import java.util.List;

public class UserMapperImpl extends SqlSessionDaoSupport implements UserMapper {
    //我们的所有操作都使用sqlSession来执行，在原来，现在都使用sqlSessionTemplate;

    public List selectUser() {
        User user = new User(11, "校长", "111111", "11111");
        UserMapper mapper = getSqlSession().getMapper(UserMapper.class);
        mapper.addUser(user);
        mapper.deleteUser(11);
        return mapper.selectUser();
    }

    public int addUser(User user) {
        return getSqlSession().getMapper(UserMapper.class).addUser(user);
    }

    public int deleteUser(int id) {
        return getSqlSession().getMapper(UserMapper.class).deleteUser(id);
    }
}