增加数据格式检验，避免设备返回错误格式造成抛错误

Lawrence

2021-01-27 c223d4e4ec4e908d12776f22f48b99ff4525aed1

 src/main/java/com/genersoft/iot/vmp/gb28181/SipLayer.java

@@ -121,7 +121,9 @@
      logger.debug(evt.getRequest().toString());

      // 由于jainsip是单线程程序，为提高性能并发处理

      processThreadPool.execute(() -> {

         processorFactory.createRequestProcessor(evt).process();

         if (processorFactory != null) {

            processorFactory.createRequestProcessor(evt).process();

         }

      });

   }