INSERT INTO ClassOwnExam ( classesId, examId , areaid ) Values ( #{classesId}, #{examId} , #{areaid} ) UPDATE ClassOwnExam SET classesId = #{classesId}, examId = #{examId} , areaid = #{areaid} where classesId=#{classesId} and examId=#{examId} and areaid = #{areaid} delete from ClassOwnExam where 1=1 and classesId=#{classesId} and examId= #{examId} and areaid = #{areaid} INSERT INTO ClassOwnExam ( classesId, examId , areaid ) Values ( #{item.classesId}, #{item.examId} , #{item.areaid} )