徐州做网站的设计师最近的新闻事件

1、创建JS文件ce-websocket-util.js

class CeWebsocketUtil {websocket = null;reConnectTimes = 0; // 失败后重新连接次数wsInterVal = null; // 重新连接定时器maxReConnectTimes = 10; // 最大连接次数,默认10次reIntervalTime = 60 * 1000; // 重连间隔时间，默认1mincurrentComponent = null; // 当前调用的组件/*** 初始化Websocket数据* @param {*} _this  当前this* @param {*} url ws连接url* @param {*} option,配置,传null时，默认 maxReConnectTimes = 10， reIntervalTime = 60000*/async initWebsocketData (_this, url, option) {this.currentComponent = _this;if (option && option.maxReConnectTimes) this.maxReConnectTimes = option.maxReConnectTimes;if (option && option.reIntervalTime) this.reIntervalTime = option.reIntervalTime;// 如果websocket不存在，则创建；存在的话，先关闭再创建if (!this.websocket) return this.createWebsocket(url);await this.closeWebsocket();this.createWebsocket(url);}// 创建Websocket连接createWebsocket (url) {this.websocket = new WebSocket(url);this.websocket.onopen = () => {this.onOpen();};this.websocket.onmessage = e => {this.onMessage(e);};this.websocket.onerror = () => {this.onError();};this.websocket.onclose = () => {this.onClose();};}/** 连接成功*/onOpen () {const NowFormatter = this.formatDateTime();if (this.reConnectTimes > 0) {console.info(`ws重连：第【${this.reConnectTimes}】次连接成功！****${this.websocket.url}****${NowFormatter}`);} else {console.info(`ws连接成功****${this.websocket.url}****${NowFormatter}`);this.reConnectTimes = 0;}// 注册onWsOpen方法this.currentComponent.onWsOpen();}/*** 收到消息* @param {*} e 消息事件*/onMessage (e) {console.info(`ws收到消息****${this.websocket.url}****${e.data}`);// 注册onWsMessage方法，接收消息this.currentComponent.onWsMessage(e.data);}/*** 连接失败* @returns*/onError () {const NowFormatter = this.formatDateTime();console.error(`ws连接失败****${this.websocket.url}****${NowFormatter}`);if (!this.wsInterVal) {this.setWsInterval();return;}// 超过最大连接次数后，不再连接if (this.reConnectTimes >= this.maxReConnectTimes) {console.error(`ws重连第【${this.reConnectTimes}】次失败,不再连接:****${this.websocket.url}****${NowFormatter}`);this.clearWsInterval();}}/*** 设置定时器*/setWsInterval () {console.info('设置定时器');this.reConnect();this.wsInterVal = setInterval(() => {this.reConnect();}, this.reIntervalTime);}/*** 重新连接*/reConnect () {// 先关掉 再连接this.websocket && this.websocket.close();const NowFormatter = this.formatDateTime();this.reConnectTimes += 1;console.info(`ws重连：正在尝试第【${this.reConnectTimes}】次连接:****${this.websocket.url}****${NowFormatter}`);this.initWebsocket(this.currentComponent, this.websocket.url);}/*** 清除定时器*/clearWsInterval () {console.info('清除定时器');clearInterval(this.wsInterVal);this.wsInterVal = null;}/*** 关闭连接*/closeWebsocket () {console.info('关闭websocket');this.websocket && this.websocket.close();this.websocket = null;this.reConnectTimes = 0;this.clearWsInterval();}// 关闭连接onClose () {const NowFormatter = this.formatDateTime();console.error(`ws断开连接****${NowFormatter}`);}/*** 发送心跳* @param {*} data*/sendHeartBeat (data) {if (this.websocket) {console.info(`sendHeartBeat${JSON.stringify(data)}`);this.websocket.send(JSON.stringify(data));}}/*** 格式化new Date() YYYY-MM-DD HH:mm:ss:ms* 控制台打印websocket信息时使用，* @returns*/formatDateTime () {const Now = new Date();return `${Now.getFullYear()}-${Now.getMonth() + 1}-${Now.getDate()} ${Now.getHours()}:${Now.getMinutes()}:${Now.getSeconds()}:${Now.getMilliseconds()}`;}
}
export default new CeWebsocketUtil();

2、VUE组件中
2.1 引入封装好的websocket

import CeWebsocketUtil from 'common/ce-websocket-util';

2.2、创建连接，初始化数据

CeWebsocketUtil.initWebsocketData(this, URL);

2.3、 websocket 连接成功

onWsOpen () {console.log('websocket已连接成功');
},

2.4、发送心跳

CeWebsocketUtil.sendHeartBeat({ rule: "hello world" });

2.5、 接收websocket数据

onWsMessage (e) {// TODO
}

2.6、主动关闭websocket

CeWebsocketUtil.closeWebsocket();