考试新老 分开

web/src/main/java/com/ynfy/buss/exam/exam/mapper/xml/ExamMapper.xml

@@ -214,7 +214,7 @@
             <if test="exam.state!=null">
                 AND tmp1.state = #{exam.state}
             </if>
-            AND tmp1.paper_id is not null
+            AND tmp1.paper_id is null
         </where>
         order by tmp1.state
     </select>