添加日志

@@ -74,7 +74,7 @@ public class HostInfoServiceImpl implements IHostInfoService {
             }
             backJson=JSON.toJSONString(hostInfos);
         }else{
-            backJson="bad request param!";
+            backJson="bad request param ! please check content:"+content+" sourceIP "+sourceIp;
         }
         return backJson;
     }