Go Gin Chat

Sun, 30 Apr 2023 08:22:37 +0800

项目地址：https://github.com/hezhizheng/go-gin-chat

Gin框架学习

Websocket学习

Websocket连接是升级的HTTP连接，在连接被客户端或服务器终止之前一直存在，基于Websocket可以实现客户端和服务端之间的双工通信，而不需要对HTTP端口进行持续轮询，大大节省了网络资源开销。

go-gin-chat中基于gorilla/websocket实现websocket的使用，下面是该软件包使用的示例，可以参考博客。

// We'll need to define an Upgrader
// this will require a Read and Write buffer size
var upgrader = websocket.Upgrader{
 ReadBufferSize: 1024,
 WriteBufferSize: 1024,
}

func wsEndpoint(w http.ResponseWriter, r *http.Request) {
 upgrader.CheckOrigin = func(r *http.Request) bool { return true }

 // upgrade this connection to a WebSocket connection
 ws, err := upgrader.Upgrade(w, r, nil)
 if err != nil {
 log.Println(err)
 }

	// 向连接的客户端写入信息
 log.Println("Client Connected")
 err = ws.WriteMessage(1, []byte("Hi Client!"))
 if err != nil {
 log.Println(err)
 }
	
 // listen indefinitely for new messages coming
 // through on our WebSocket connection
 go reader(ws)
}

// define a reader which will listen for
// new messages being sent to our WebSocket
// endpoint
func reader(conn *websocket.Conn) {
 for {
 // read in a message
 messageType, p, err := conn.ReadMessage()
 if err != nil {
 log.Println(err)
 return
 }
 // print out that message for clarity
 fmt.Println(string(p))
 if err := conn.WriteMessage(messageType, p); err != nil {
 log.Println(err)
 return
 }
 }
}

Websocket心跳检测

参考博客 https://www.cnblogs.com/tugenhua0707/p/8648044.html

WebSocket on Lishengxie

Go Gin Chat

Gin框架学习

Websocket学习

Websocket心跳检测