mybatis的配置与使用

首先下载Mybatis，加入jar包

编写Mybatis的.xml配置文件

然后编写“XXX“Mapper.xml的映射文件

之后用java调用就行了

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MybTest {

    public void MybTest() throws IOException{
        String resource = "com/config/mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        SqlSession sqlSession = sqlSessionFactory.openSession();
        
        //操作数据库，第一个参数是映射的Mapper.xml设定的sql语句，第二个是动态生成sql语句的参数
        sqlSession.insert("test.addUser", user);//增
        sqlSession.delete("test.deleteUserById", uid);//删
        sqlSession.update("test.updateUserById", user);//改
        sqlSession.selectOne(arg0, arg1);//查单个
        sqlSession.selectList(arg0, arg1);//查多个
        
        sqlSession.commit();
        sqlSession.close();
    }
}