diff --git a/AsyncTcpServer.cs b/AsyncTcpServer.cs
index 552c12f..35e8468 100644
--- a/AsyncTcpServer.cs
+++ b/AsyncTcpServer.cs
@@ -73,11 +73,13 @@ namespace ForwardingServer
                         }
                         else
                         {
-                            Personm deserializedPerson = JsonSerializer.Deserialize<Personm>(DAT)!;
-                            DATA.MachineTable.Rows.Add(client.Id, client.IP, 30, "/" + deserializedPerson.SERVEREnterprise,
-                                deserializedPerson.SERVERMachineName, deserializedPerson.MachineVer);
-                            Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-DD HH:mm:ss:fff") + " [LINK ID " + client.Id + " IP " + client.IP + "]\nDATA =" + DAT);
-                      
+                            if (IsValidJson(DAT))
+                            {
+                                Personm deserializedPerson = JsonSerializer.Deserialize<Personm>(DAT)!;
+                                DATA.MachineTable.Rows.Add(client.Id, client.IP, 30, "/" + deserializedPerson.SERVEREnterprise,
+                                    deserializedPerson.SERVERMachineName, deserializedPerson.MachineVer);
+                                Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-DD HH:mm:ss:fff") + " [LINK ID " + client.Id + " IP " + client.IP + "]\nDATA =" + DAT);
+                            }
                         }
                     }
                 }
@@ -107,7 +109,17 @@ namespace ForwardingServer
             await service.StartAsync();//启动
 
             Console.WriteLine("TcpServer:Run");
-        }  
-      
+        }
+
+        // 辅助方法检查JSON格式
+        private static bool IsValidJson(string jsonString)
+        {
+            if (string.IsNullOrEmpty(jsonString))
+                return false;
+
+            jsonString = jsonString.Trim();
+            return (jsonString.StartsWith("{") && jsonString.EndsWith("}")) ||
+                   (jsonString.StartsWith("[") && jsonString.EndsWith("]"));
+        }
     }      
 }