diff --git a/internal/services/chat.go b/internal/services/chat.go
index d44d032..43804b8 100644
--- a/internal/services/chat.go
+++ b/internal/services/chat.go
@@ -81,17 +81,10 @@ func (h *ChatService) Chat(c *websocket.Conn) {
 			break
 		}
 		//简单协议：bind:<uid>
-		if len(message) > 5 && string(message[:5]) == "bind:" {
-			uid := string(message[5:])
+		if c.Headers("Sec-Websocket-Protocol") == "bind" && c.Headers("X-Session") != "" {
+			uid := c.Headers("X-Session")
 			_ = h.Gw.BindUid(clientID, uid)
 			log.Printf("bind %s -> uid:%s\n", clientID, uid)
-			continue
-		}
-		// 回显
-		err = h.Gw.SendToClient(clientID, []byte("echo: "+string(message)))
-		if err != nil {
-			h.ChatFail(c, "send to client failed")
-			continue
 		}
 		msg, chatType := h.handleMessageToString(c, messageType, message)
 		if chatType == constant.ConnStatusClosed {