/
server.go
71 lines (60 loc) · 1.46 KB
/
server.go
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package main
import (
"fmt"
"log"
"net/http"
"time"
"github.com/gorilla/websocket"
)
func main() {
//websocket 的升级接口
upgrader := websocket.Upgrader{}
http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
//通过 upgrader 将 http 连接升级为 websocket 连接
connect, err := upgrader.Upgrade(writer, request, nil)
if nil != err {
log.Println(err)
return
}
defer connect.Close()
//定时向客户端发送数据
go tickWriter(connect)
//启动数据读取循环,读取客户端发送来的数据
for {
//从 websocket 中读取数据
//messageType 消息类型,websocket 标准
//messageData 消息数据
messageType, messageData, err := connect.ReadMessage()
if nil != err {
log.Println(err)
break
}
switch messageType {
case websocket.TextMessage: //文本数据
fmt.Println(string(messageData))
case websocket.BinaryMessage: //二进制数据
fmt.Println(messageData)
case websocket.CloseMessage: //关闭
case websocket.PingMessage: //Ping
case websocket.PongMessage: //Pong
default:
}
}
})
err := http.ListenAndServe(":60000", nil)
if nil != err {
log.Println(err)
return
}
}
func tickWriter(connect *websocket.Conn) {
for {
//向客户端发送类型为文本的数据
err := connect.WriteMessage(websocket.TextMessage, []byte("from server to client"))
if nil != err {
log.Println(err)
break
}
time.Sleep(time.Second)
}
}