dt2/spring-cloud/server-page/src/main/resources/dldp2/js/websocket.js

var myWebsocket = {
	websocket : null,
	clientPrefix : "",
	clientId : "",
	default : {
		type : "",
		url : "",
		onmessage : null,
		//将消息显示在网页上
		setConsoleOut : function setConsoleOut(innerHTML) {
			console.log(innerHTML);
		}
		
	},
	initWebsocket : function(data){
		var type = "";
		var setConsoleOut = null;
		var url = "";
		if(!data){
			alert("url is empty");
			return;
		}
		type = data.type ? data.type + "_" : myWebsocket.default.type;
		if(data.onmessage){
			myWebsocket.default.onmessage = data.onmessage;
		}
		myWebsocket.clientPrefix = "client_" + type;
		sessionStorage.clientPrefix = myWebsocket.clientPrefix;
		myWebsocket.clientId = myWebsocket.clientPrefix + Math.uuid().replace(/-/g,"");
		sessionStorage.clientId = myWebsocket.clientId;
		if(!data.url){
	    	alert("url is empty");
			return;
		}
		url = data.url + "/socketServer/" + myWebsocket.clientId;
		setConsoleOut = data.setConsoleOut ? data.setConsoleOut : myWebsocket.default.setConsoleOut;
		
		//判断当前浏览器是否支持WebSocket, 主要此处要更换为自己的地址
	    if ('WebSocket' in window) {
	        setConsoleOut(url);
	        myWebsocket.websocket = new WebSocket(url);
	    } else {
	        setConsoleOut('Not support websocket');
	    }
	
	    //连接发生错误的回调方法
	    myWebsocket.websocket.onerror = function() {
	        setConsoleOut("error");
	    };
	
	    //连接成功建立的回调方法
	    myWebsocket.websocket.onopen = function(event) {
	        setConsoleOut("open");
	    }
	
	    //接收到消息的回调方法
	    myWebsocket.websocket.onmessage = function(event) {
	        setConsoleOut(event.data);
	        if(myWebsocket.default.onmessage){
				myWebsocket.default.onmessage(event.data);
			}
	    }
	
	    //连接关闭的回调方法
	    myWebsocket.websocket.onclose = function() {
	        setConsoleOut("close");
	    }
	
	    //监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
	    window.onbeforeunload = function() {
	        if(myWebsocket.websocket){
			    myWebsocket.websocket.close();
			}
	    }
	},
	sendWebsocket : function(message) {
		if(myWebsocket.websocket){
			console.log(message);
	    	myWebsocket.websocket.send(message);
		}
	},
	closeWebSocket : function () {
		if(myWebsocket.websocket){
		    myWebsocket.websocket.close();
		}
	}
};


/*!
Math.uuid.js (v1.4)
http://www.broofa.com
mailto:robert@broofa.com

Copyright (c) 2010 Robert Kieffer
Dual licensed under the MIT and GPL licenses.
*/

/*
 * Generate a random uuid.
 *
 * USAGE: Math.uuid(length, radix)
 *   length - the desired number of characters
 *   radix  - the number of allowable values for each character.
 *
 * EXAMPLES:
 *   // No arguments  - returns RFC4122, version 4 ID
 *   >>> Math.uuid()
 *   "92329D39-6F5C-4520-ABFC-AAB64544E172"
 *
 *   // One argument - returns ID of the specified length
 *   >>> Math.uuid(15)     // 15 character ID (default base=62)
 *   "VcydxgltxrVZSTV"
 *
 *   // Two arguments - returns ID of the specified length, and radix. (Radix must be <= 62)
 *   >>> Math.uuid(8, 2)  // 8 character ID (base=2)
 *   "01001010"
 *   >>> Math.uuid(8, 10) // 8 character ID (base=10)
 *   "47473046"
 *   >>> Math.uuid(8, 16) // 8 character ID (base=16)
 *   "098F4D35"
 */
(function() {
  // Private array of chars to use
  var CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');

  Math.uuid = function (len, radix) {
    var chars = CHARS, uuid = [], i;
    radix = radix || chars.length;

    if (len) {
      // Compact form
      for (i = 0; i < len; i++) uuid[i] = chars[0 | Math.random()*radix];
    } else {
      // rfc4122, version 4 form
      var r;

      // rfc4122 requires these characters
      uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';
      uuid[14] = '4';

      // Fill in random data.  At i==19 set the high bits of clock sequence as
      // per rfc4122, sec. 4.1.5
      for (i = 0; i < 36; i++) {
        if (!uuid[i]) {
          r = 0 | Math.random()*16;
          uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];
        }
      }
    }

    return uuid.join('');
  };

  // A more performant, but slightly bulkier, RFC4122v4 solution.  We boost performance
  // by minimizing calls to random()
  Math.uuidFast = function() {
    var chars = CHARS, uuid = new Array(36), rnd=0, r;
    for (var i = 0; i < 36; i++) {
      if (i==8 || i==13 ||  i==18 || i==23) {
        uuid[i] = '-';
      } else if (i==14) {
        uuid[i] = '4';
      } else {
        if (rnd <= 0x02) rnd = 0x2000000 + (Math.random()*0x1000000)|0;
        r = rnd & 0xf;
        rnd = rnd >> 4;
        uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];
      }
    }
    return uuid.join('');
  };

  // A more compact, but less performant, RFC4122v4 solution:
  Math.uuidCompact = function() {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
      var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
      return v.toString(16);
    });
  };
})();