在golang中使用socket.io
Posted aguncn
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客户端试过了socket.js，感觉不先进。
再试试正宗的socket.io吧。
后端用golang改造。
main.go
package main
import (
"fmt"
"log"
"net/http"
socketio "github.com/googollee/go-socket.io"
)
func main() {
server, err := socketio.NewServer(nil)
if err != nil {
log.Fatal(err)
}
//===========/chat1===========
server.OnEvent("/", "default notice", func(s socketio.Conn, msg string) {
fmt.Println("default notice:", msg)
s.Emit("default reply", "default notice reply: "+msg)
})
//===========/chat1===========
server.OnEvent("/chat1", "chat1 notice", func(s socketio.Conn, msg string) {
fmt.Println("chat1 notice:", msg)
s.Emit("chat1 reply", "chat1 notice reply: "+msg)
})
//===========/chat2===========
server.OnEvent("/chat2", "chat2 msg", func(s socketio.Conn, msg string) string {
s.SetContext(msg)
return "chat2 msg recv " + msg
})
go server.Serve()
defer server.Close()
http.Handle("/socket.io/", server)
http.Handle("/", http.FileServer(http.Dir("./asset")))
log.Println("Serving at localhost:8000...")
log.Fatal(http.ListenAndServe(":8000", nil))
}
index.html
<!doctype html>
<html>
<head>
<title>Socket.IO chat</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 13px Helvetica, Arial; }
form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
#messages { list-style-type: none; margin: 0; padding: 0; }
#messages li { padding: 5px 10px; }
#messages li:nth-child(odd) { background: #eee; }
</style>
</head>
<body>
<ul id="messages"></ul>
<form action="">
<input id="m" autocomplete="off" /><button>Send</button>
</form>
<script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script>
var socket1 = io("/chat1");
var socket2 = io("/chat2");
socket1.on(‘chat1 reply‘, function(msg){
$(‘#messages‘).append($(‘<li>‘).text(msg));
});
$(‘form‘).submit(function(){
socket2.emit(‘chat2 msg‘, $(‘#m‘).val(), function(data){
console.log(data);
$(‘#messages‘).append($(‘<li>‘).text(‘ACK CALLBACK: ‘ + data));
});
socket1.emit(‘chat1 notice‘, $(‘#m‘).val());
$(‘#m‘).val(‘‘);
return false;
});
</script>
</body>
</html>
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