MyBatis中增删改操作

Mapper层代码

<!-- 增加操作  public  int   insert (Flower  fl)  -->    
<insert id="insert">        
    insert  into  flower  values(default,#{name},#{price},#{production})   
</insert>          
<!--修改操作  public  int  update(Flower fl) -->
<update id="update">            
 update  flower  set name=#{name},price=#{price},production=#{production} where  id=#{id}    
</update>
<!--删除操作  public  int delete(int id)  -->  
<delete id="delete">        
 delete   from  flower  where  id=#{param1}     //id= #{arg0} 下标为0的参数 不推荐 
</delete>

测试文件

Flower  fl =new Flower(6, "随便花123",50, "支付宝");  
//【A】添加操作                
 int update1 = session.insert("com.bjsxt.mapper.FlowerMapper.insert", fl);                                 
// 【B】修改操作                
int update2 = session.update("com.bjsxt.mapper.FlowerMapper.update", fl);                                
// 【C】删除操作                                
int update3 = session.delete("com.bjsxt.mapper.FlowerMapper.delete", 6);
session.commit();

提交的两种方式
[1].手动：session.commit();
[2].自动：SqlSession session = factory.openSession(true);

标签：mapper,flower,int,增删,session,MyBatis,操作,id,production
来源： https://blog.csdn.net/qq_53609683/article/details/115828764