[update] 信号机时间返回值

signal-utc-service/src/main/java/net/wanji/utc/service/staticinfo/impl/StaticInfoServiceImpl.java

@@ -204,6 +204,6 @@ public class StaticInfoServiceImpl implements StaticInfoService {
         } else {
             jsonViewObject = wanjiCommonStaticInfoService.signalTime(crossId);
         }
-        return null;
+        return jsonViewObject;
     }
 }