Server codeWebsocket is a protocol mechanism provided in HTML5 to facilitate TCP persistent connection communication. With the popularization of HTML5, this technology will become more and more widely used. Because beetle can flexibly expand different protocols, naturally, websocket support is quite simple. for more information about websocket protocol analysis and processing, see download.ProgramComplete protocol package availableCode, If you want to learn more about the websocket protocol can be here: http://datatracker.ietf.org/doc/rfc6455? Include_text = 1
The following describes how to use beetle to conveniently implement a websocket-based Hello wold program.
HTML codeClass program: websocketserver {static void main (string [] ARGs) {tcputils. setup ("beetle"); program server = new program (); server. open( 8088); console. writeline ("websocket start @ 8088"); system. threading. thread. sleep (-1);} protected override void onconnected (Object sender, channeleventargs e) {base. onconnected (sender, e);} protected override void ondisposed (Object sender, channeldisposedeventargs e) {base. ondisposed (sender, e);} protected override void onerror (Object sender, channelerroreventargs e) {base. onerror (sender, e);} protected override void onwebsocketreceive (tcpchannel channel, datapackage e) {console. writeline ("messagetype: {0}", E. type); console. writeline ("requestpath: {0}", E. requestpath); If (E. type = packagetype. text) {console. writeline (E. tostring (); datapackage dp = new datapackage (); DP. type = packagetype. text; DP. data. encoding ("hello" + E. tostring (), encoding. utf8); channel. send (DP );}}}The above is a complete websocket service. The code is very simple. websocketserver can simply rewrite onwebsocketreceive and process the corresponding datapackage as needed in the event. For the structure and type of datapackage, see download code.
<HTML> <meta charset = "UTF-8"/> <title> websocket test </title> <script language = "JavaScript" type = "text/JavaScript"> var wsuri =" WS: // 127.0.0.1: 8088/"; var output; function Init () {output = document. getelementbyid ("output"); testwebsocket ();} function testwebsocket () {websocket = new websocket (wsuri); websocket. onopen = function (EVT) {onopen (EVT)}; websocket. onclose = function (EVT) {onclose (EVT)}; websocket. onmessage = function (EVT) {onmessage (EVT)}; websocket. onerror = function (EVT) {onerror (EVT) };} function onopen (EVT) {writetoscreen ("connected");} function onclose (EVT) {writetoscreen ("disconnected");} function onmessage (EVT) {document. getelementbyid ('result '). value = EVT. data;} function onerror (EVT) {writetoscreen ('<span style = "color: red;"> error: </span>' + EVT. data);} function dosend (Message) {websocket. send (Message);} function writetoscreen (Message) {var pre = document. createelement ("p"); pre. style. wordwrap = "break-word"; pre. innerhtml = message; output. insertbefore (pre);} function onconnect () {wsuri = document. getelementbyid ("url "). value; Init () ;}</SCRIPT> <body> <fieldset> <legend> websocket Hello wold </legend> <p> <span> server URL: </span> <input id = "url" type = "text" value = "WS: // 127.0.0.1: 8088/"/> <input type =" button "value =" connected "onclick =" onconnect () "/> </P> <p> <span> enter you name: </span> <input id = "youname" type = "text" value = "test"/> <input type = "button" value = "Submit" onclick = "dosend (document. getelementbyid ('youname '). value) "/> </P> <p> <span> result: </span> <input id = "result" type = "text" value = ""/> </P> </fieldset> <Div id = "output"> </ div> </body>
Running Effect
So a hello Wold-based websocket handler will be completed. If you are interested in websocket, you can downloadSource codeUnderstand the principles of websocket protocol analysis, and how to analyze the corresponding websocket protocol from byte.
Download Code
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