#### 10.2 鏈接屬性方法實現 > zinx/znet/connction.go ```go type Connection struct { //當前Conn屬于哪個Server TcpServer ziface.IServer //當前連接的socket TCP套接字 Conn *net.TCPConn //當前連接的ID 也可以稱作為SessionID，ID全局唯一 ConnID uint32 //當前連接的關閉狀態 isClosed bool //消息管理MsgId和對應處理方法的消息管理模塊 MsgHandler ziface.IMsgHandle //告知該鏈接已經退出/停止的channel ExitBuffChan chan bool //無緩沖管道，用于讀、寫兩個goroutine之間的消息通信 msgChan chan []byte //有關沖管道，用于讀、寫兩個goroutine之間的消息通信 msgBuffChan chan []byte // ================================ //鏈接屬性 property map[string]interface{} //保護鏈接屬性修改的鎖 propertyLock sync.RWMutex // ================================ } //創建連接的方法 func NewConntion(server ziface.IServer, conn *net.TCPConn, connID uint32, msgHandler ziface.IMsgHandle) *Connection { //初始化Conn屬性 c := &Connection{ TcpServer: server, Conn: conn, ConnID: connID, isClosed: false, MsgHandler: msgHandler, ExitBuffChan: make(chan bool, 1), msgChan: make(chan []byte), msgBuffChan: make(chan []byte, utils.GlobalObject.MaxMsgChanLen), property: make(map[string]interface{}), //對鏈接屬性map初始化 } //將新創建的Conn添加到鏈接管理中 c.TcpServer.GetConnMgr().Add(c) return c } // ... //設置鏈接屬性 func (c *Connection) SetProperty(key string, value interface{}) { c.propertyLock.Lock() defer c.propertyLock.Unlock() c.property[key] = value } //獲取鏈接屬性 func (c *Connection) GetProperty(key string) (interface{}, error) { c.propertyLock.RLock() defer c.propertyLock.RUnlock() if value, ok := c.property[key]; ok { return value, nil } else { return nil, errors.New("no property found") } } //移除鏈接屬性 func (c *Connection) RemoveProperty(key string) { c.propertyLock.Lock() defer c.propertyLock.Unlock() delete(c.property, key) } ```