新增校验

src/main/resources/mybatis/system/PostMapper.xml

@@ -48,7 +48,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  		delete from sys_post where post_id = #{postId}
  	</delete>
  	
- 	<delete id="batchDeletePost" parameterType="String">
+ 	<delete id="batchDeletePost" parameterType="Long">
  		delete from sys_post where post_id in
  		<foreach collection="array" item="postId" open="(" separator="," close=")">
  			#{postId}