mybatis 下 mysql in查询按照参数顺序输出结果

若使用语句

SELECT documentName, documentCode
FROM document_summary
WHERE documentCode IN ('0046A','0002A','0001A')

得出的结果为:

而我们需要的结果是按照0046A,0002A,0001A的顺序展示,可以使用Field函数排序:

SELECT documentName, documentCode
FROM document_summary
WHERE documentCode IN ('0046A','0002A','0001A')
ORDER BY FIELD(documentCode,'0046A','0002A','0001A')

结果为:

这个可以满足我们的要求了,mybatis中的语句如下:

<select id="selectDocName" resultType="Documents" parameterType="DocQueryParam">
	SELECT documentName, documentCode
  	FROM document_summary
  	WHERE documentCode IN
	<foreach item="item" index="index" collection="strList" open="(" separator="," close=")">
		#{item}
   </foreach>
   ORDER BY field(
   documentCode,
   	<foreach item="item" collection="strList" separator="," >
		#{item}
   </foreach>
   )
   </select>

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转载自blog.csdn.net/zoiery/article/details/84782865