mybatis操作数据库代码示例

package com.gyf.test;

import com.gyf.model.User;
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.Test;

import javax.annotation.Resource;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

public class Demo01 {
    @Test
    public void test1() throws IOException {
        //读取配置文件
        InputStream is = Resources.getResourceAsStream("SqlMapConfig.xml");
        //通过SqlSessionFactoryBuilder创建SqlSessionFactory会话工厂
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(is);
        //通过SqlSessionFactory创建SqlSession
        SqlSession session = sessionFactory.openSession();
        //调用SqlSession的操作数据库方法
        //查询一条结果
        User user = session.selectOne("findUserById",10);
        System.out.println(user);
        //查询多条结果
        List<User> users = session.selectList("findUserByName", "张");
        System.out.println(users);
        //关闭session
        session.commit();
    }
}