Created
June 5, 2014 13:51
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mqtt jsonp example
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>jsonp example</title> | |
| <script src="http://libs.baidu.com/jquery/1.5.0/jquery.js"></script> | |
| <script type="text/javascript"> | |
| var clientId = ""; | |
| var urlPrefix = "http://127.0.0.1:8080/jsonp"; | |
| $(document).ready(function(){ | |
| doConnect(); | |
| }); | |
| function doConnect(){ | |
| jreq(urlPrefix + '/connect', '', function(data){ | |
| if(data.status){ | |
| log("connected!"); | |
| clientId = data.clientId; | |
| doSub(); | |
| }else{ | |
| alert("failure !"); | |
| } | |
| }); | |
| } | |
| function doSub(){ | |
| jreq(urlPrefix + '/subscribe', 'topic=sub-msg/webclient1', function(data){ | |
| if(data.status){ | |
| log("subscribed!"); | |
| doWaiting(); | |
| }else{ | |
| log("bad!"); | |
| } | |
| }); | |
| } | |
| function doWaiting(){ | |
| jreq(urlPrefix + '/waiting', '', function(data){ | |
| log("Got Message : id = " + data.id + " msg = " + data.msg); | |
| doWaiting(); | |
| }); | |
| } | |
| function jreq(url, parameter, fn){ | |
| $.ajax({ | |
| url:url, | |
| dataType:"jsonp", | |
| jsonp:"jsonpcallback", | |
| data: parameter, | |
| timeout: 300000, | |
| async:true, | |
| success:function(data){ | |
| fn(data); | |
| } | |
| }); | |
| } | |
| function log(val){ | |
| $("#log").html(val + "<br/>" + $("#log").html()); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <div id="log"></div> | |
| </body> | |
| </html> |
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