Go Language--socket.io

Socket.io is the WebSocket package and extension, can be used across platforms, specifically crossing network.

Go language implementation:

Package Mainimport ("Github.com/googollee/go-socket.io"    "Github.com/nicholaskh/log4go"    "net/http"    "OS"    " Time"    "Path"    "Strings"    "Runtime"    "FMT") var Glogger log4go. Logger;// Doinit before all Othersfunc Initall () {Glogger=NilInitlogger ()}De-init forAllfunc Deinitall () {if(Nil==Glogger)        {Glogger.close (); Glogger=Nil}}func Main () {Initall () server, err:= Socketio. NewServer (Nil)    ifErr! =Nil{Glogger.warn ("Start Server Error")} server. On ("Connection", func (so socketio. Socket) {Glogger.info ("On connection") so. Join ("Chat") so. On ("Chat Message", func (msg string) {m:=Make (map[string]interface{}) m["a"] ="Hello"e:= So. Emit ("cn1111", M)//This is no problem with FMT. Println ("\ n") B:=Make (map[string]string) b["u-a"] ="Chinese content"//This can't be Chinese m["b-c"] =b e= So. Emit ("cn2222", M) glogger.info (e) glogger.info ("Emit:", so. Emit ("Chat Message", msg)) So. Broadcastto ("Chat","Chat Message", msg)}) //Socket.io Acknowledgement ExampleThereturn typeMay vary depending on whetherreturnFor the example it is"string" typeSo . On ("Chat message with ACK", func (msg String) string {returnmsg}) So. On ("disconnection", func () {Glogger.info ("On Disconnect")}) server. On ("Error", func (So socketio. Socket, errError) {Glogger.warn ("ERROR:", Err)}) http. Handle ("/socket.io/", server) http. Handle ("/", HTTP. Fileserver (http. Dir ("/users/deer_mac/downloads/go-socket.io-master/example/chat/public")) ) Glogger.info ("serving at localhost:5000 ...") http. Listenandserve (":",Nil) Deinitall ()}//Getcurfilename//Get Current file name, without Suffixfunc getcurfilename () string {_, Fullefilename, _, _:= Runtime. Caller (0)    //FMT. Println (Fullefilename) var filenamewithsuffix string Filenamewithsuffix=path. Base (Fullefilename)Fmt. Println ("filenamewithsuffix=", Filenamewithsuffix) var filesuffix string Filesuffix=path. EXT (Filenamewithsuffix)Fmt. Println ("filesuffix=", Filesuffix) var filenameonly string filenameonly=strings. Trimsuffix (Filenamewithsuffix, Filesuffix)Fmt. Println ("filenameonly=", Filenameonly)returnFilenameonly}Init forLoggerfunc Initlogger () {var filenameonly string filenameonly=getcurfilename () var logfilename string= Filenameonly +". Log"; Glogger =Log4go. Newlogger () Glogger=Make (Log4go. Logger)// forConsoleGlogger.addfilter ("stdout", Log4go.info, Log4go. Newconsolelogwriter ()) Glogger.addfilter ("stdout", Log4go.info, Log4go. Newconsolelogwriter ())// forlog Fileif_, Err: = OS. Stat (LogFileName); Err = =Nil {        Fmt. Printf ("found old log file%s, now remove it\n", LogFileName) os. Remove (LogFileName)}Glogger.addfilter ("logfile", Log4go. FINEST, Log4go. Newfilelogwriter (LogFileName,true)) Glogger.addfilter ("logfile", Log4go. FINEST, Log4go. Newfilelogwriter (LogFileName,false)) Glogger.info ("Current time is :%s", time. Now (). Format ("15:04:05 MST 2006/01/02"))    return}

Go Language--socket.io