考生端websocket

themis-business/src/main/resources/mapper/TEExamMapper.xml

@@ -56,8 +56,8 @@
         </where>
             ) t
         <where>
-            t.reallyTime = -1
-            or t.reallyTime = 0
+            t.reallyTime <![CDATA[ >= ]]> -15
+            and t.reallyTime <![CDATA[ <= ]]> 0
         </where>
     </select>