sockjs+stomp的websocket插件

/**
 * 依賴文件sockjs.js、stomp.js
 * */
;!(function (window) {
    'use strict'
    let WS = function () {
        //保存所有的訂閱事件 {Aevent:[pubfun(status,data),pubfun(status,data),...]}
        this.subEvents = {};
        this.isConnect = false;
        this.stompClient = null;
        this.selfClose = false;
        this.ws = null;
        this.url = null;
    };

    WS.prototype = {
        constructor: WS
        //設置連接狀態
        , setConnect(status) {
            this.isConnect = status;
        }
        //建立連接
        , connect(url) {
            //若沒有連接，才連接
            this.isConnect = false;
            this.url = url;
            this.ws = new SockJS(url);
            this.stompClient = Stomp.over(ws);
            this.stompClient.connect({}, (data) => {
                this.setConnect(true);
                this.connectSuc.apply(this, [stompClient, data]);
            }, (error) => {
                this.setConnect(false);
                this.connectErr.apply(this,[stompClient,error]);
            });
            this.ws.onclose =  (e) => {
                this.isConnect = false;
                if(!this.selfClose){
                    this.reConnect();
                }
            }
            return stompClient;
        }
        //手動斷開連接
        , disconnect() {
            if(this.stompClient != null && this.isConnect) {
                this.stompClient.disconnect();
                this.isConnect = false;
                this.selfClose = true;
                this.ws = null;
                this.stompClient = null;
            }
        }
        //重連
        , reConnect(){
            if(this.isConnect){return;}
            this.connect(this.url);
        }
        //連接成功後的回調
        , connectSuc(stompClient, data) {
            if(this.isConnect){
                //發佈連接成功事件
                this.trigger.apply(this, ['connectSuc', stompClient.subscribe.bind(stompClient), data]);
                //發佈發送消息到服務端事件
                this.trigger.apply(this, ['sendMessage', stompClient.send.bind(stompClient), data]);
            }
        }
        //連接失敗後的回調
        , connectErr(stompClient, data){
            //發佈連接失敗事件
            this.trigger.apply(this, ['connectErr', stompClient, data]);
        }
        //發佈函數
        , trigger(eventType, ...data) {
            eventType = this.subEvents[eventType];
            for (var i = 0; i < eventType.length; i++) {
                eventType[i].apply(this, data);
            }
        }
        //訂閱方法 --->用於訂閱指定事件
        , on(eventType, handle) {
            if (!(eventType in this.subEvents)) {
                this.subEvents[eventType] = [];
            }
            this.subEvents[eventType].push(handle);
        }
        //刪除訂閱
        , off(eventType, handle) {
            eventType = this.subEvents[eventType];
            if (eventType) {
                let handleIndex = eventType.indexOf(handle);
                if (handleIndex >= 0) {
                    eventType.splice(handleIndex, 1);
                }
            }
        }
    };
    window.WS = WS;
})(window);


/**
 *
 *  var ws = new WS();
    ws.connect("/helloWebsocket");

    ws.on('connectSuc',function (subscribe,data) {
        subscribe('/topic/serverSend', function(response){
            info.innerHTML += "<div>"+response+"</div>";
        });
        subscribe('/topic/serverResponse',function (response) {
            info.innerHTML += "<div>"+response+"</div>";
        });
    });

    ws.on('connectErr',function (stompClient,data) {

    });

    //客戶端發送消息給服務端
    ws.on('sendMessage',function (send,data) {
        send("/client/clientSendMessage",{},"hello server !!");
    });



     //強制關閉視窗後,斷開連接
    window.onunload = function (ev) {
        ws.disconnect();
    }
 *
 * */