上述collection为array,对应的Mapper代码: 3.自己把参数封装成Map的类型 1 <select id="dynamicForeach3Test" resultType="Blog"> 2 select * from t_blog where title like "%"#{title}"%" and id in 3 <foreachcollection="ids" index="index" item="item" open="(" separator="," close=")"> 4 #{item} 5 </foreach> 6 </select...
select*from t_user where idin<foreach collection="userIds"index="index"item="item"open="("separator=","close=")">#{item}</foreach> Map的时候需要注意的是:collection的值ids是存储在map中的key,比如: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 map.put("userIds",userIds));...
List<UserEntity>queryUser(List<String> ids); 2. <deleteid="deleteUserById" > delete from tab_user where user_id in <foreachcollection="array"item="item"open="("separator=","close=")"index="index"> #{item} </foreach> </delete> /** * 根据传入的ID删除对应的用户 *@param ids *@...
foreach item="id" separator="," open="(" close=")">id}foreach>delete>B、delete id="deleteByIds">delete from tb_brand where id inforeach collection="ids" item="id" separator="," open="(" close=")">id}foreach>delete>C、delete id="deleteByIds">...
Mybatis 中 foreach 标签 collection的用法 在做mybatis的mapper.xml文件的时候,时常遇到一些需要批量操作的情况,这个时候mybatis的foreach标签就派上用场了。 foreach元素的属性主要有item,index,collection,open,separator,close。 item:集合中元素迭代时的别名,该参数为必选,循环使用的变量名。
where a.article_id in <foreach collection="array" index="index" item="item" open="(" separator="," close=")"> #{item} </foreach> </delete> 1. 2. 3. 4. 5. 6. 7. 五、批量修改 参数是Map<String,Object>,我下面写map 是因为配置了别名 ...
select*fromt_userwhereidin <foreachcollection="userIds"index="index"item="item"open="("separator=","close=")"> #{item} </foreach> Map的时候需要注意的是:collection的值ids是存储在map中的key,比如: map.put("userIds",userIds)); 尤其需要注意...
<delete id="deleteBatchByIds" parameterType="java.util.List">delete from tb_sys_momentWHERE id IN<foreach collection="idList" open="(" close=")" separator="," item="itemId">#{itemId}</foreach></delete> 【3】BatchExecutor 严格来讲上述操作并非MyBatis提供的批量操作处理。如下所示,批量插...
* 根据传⼊的id获取对应的user 3.* @param ids 4.* @return 5.*/ 6.List<UserEntity> queryUser(List<String> ids);2.1.<delete id="deleteUserById" > 2.delete from tab_user where user_id in 3.<foreach collection="array" item="item" open="(" separator="," close=")" index="...
2 select * from t_blog where id in 3 <foreach collection="array" index="index" item="item" open="(" separator="," close=")"> 4 #{item} 5 </foreach> 6 上述collection为array,对应的Mapper代码: public List dynamicForeach2Test(int[] ids); 对应的测试代码: 1 @Test 2 public void...