修改逻辑

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ImLiveRoomPurviewServiceImpl.java

@@ -101,7 +101,7 @@ public class ImLiveRoomPurviewServiceImpl extends ServiceImpl<ImLiveRoomPurviewD
                 checkVal = true;
             }
         }
-        if(checkVal){
+        if(!checkVal){
             throw new BizException("必需要有一个查询条件");
         }
     }