mybatis 逗号分隔字符
时间: 2023-08-16 22:07:54 浏览: 183
引用\[1\]和\[2\]提供了使用Mybatis的foreach功能来拼接逗号分隔的多个值作为SQL语句中的IN条件的示例。在这些示例中,通过使用foreach标签和split函数,可以将逗号分隔的字符串拆分成多个值,并将它们拼接到IN条件中。
在mapper.xml文件中,可以使用foreach标签来遍历拆分后的值,并将它们拼接到IN条件中。示例代码如下:
```xml
<select id="getSimilarity" parameterType="java.util.HashMap" resultType="java.util.HashMap">
select * from table where ids in
<foreach item="item" index="index" collection="ids.split(',')" open="(" separator="," close=")">
#{item}
</foreach>
</select>
```
在mapper.java文件中,可以使用@Select注解和<script>标签来编写动态SQL语句。示例代码如下:
```java
@Select("<script>"+
"select * from study " +
"<if test=\"itemIds != null\">"+
"where id in "+
"<foreach item='item' index='index' collection=\"ids.split(',')\" open='(' separator=',' close=')'>"+
" #{item}"+
"</foreach>"+
"</if>"+
"</script>"
)
```
通过以上示例,你可以在Mybatis中使用逗号分隔的字符作为参数,并使用foreach功能将其拆分并拼接到SQL语句的IN条件中。
#### 引用[.reference_title]
- *1* [Mybatis foreach逗号分隔字符串遍历方式](https://blog.csdn.net/Weixiaohuai/article/details/103028095)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [Mybatis in 逗号分隔字符串](https://blog.csdn.net/qq_34158598/article/details/121771888)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [myBatis通过逗号分隔字符串,foreach](https://blog.csdn.net/RiceTZ/article/details/84938264)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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