修复历史session未启用

handler/im.go

@@ -200,10 +200,14 @@ func doReceiveGenChatMessage(userId int, sessionID *uint, data *proto.WSMessageR
 		return errors.New("model not exist")
 	}
 	var err error
+	//查看是否有会话
+	if data.SessionID != 0 {
+		*sessionID = uint(data.SessionID)
+	}
 	if *sessionID == 0 {
 		//创建会话
 		err, *sessionID = service.CreateSession(userId, data.Msg)
-		log.Println("create session id:", sessionID)
+		log.Println("create session id:", *sessionID)
 		if err != nil {
 			log.Println("Create session error:", err)
 		}