1.Websocket概述
websocket是客户端和服务器端进行交互的简单协议,在websocket中,服务器和浏览器只需要进行一次握手,两者之间就可以建立持久的连接性,并可以进行双向的数据传送。
2.Websocket的使用
// 初始化websocket
initWebsocket() {
this.userInfo = Tools.getLoc('userInfo');
this.userId = this.userInfo.id;
const wsuri = "ws://地址;
this.websocket = new WebSocket(wsuri);
this.websocket.onmessage = this.websocketonmessage;
this.websocket.onopen = this.websocketopen;
this.websocket.onerror = this.websocketonerror;
this.websocket.onclose = this.websocketclose;
},
// 接收数据
websocketonmessage(e) {
console.log(typeof e.data); //为string类型
this.data = e.data; //接收到的数据
let H = new Date().getHours(); //获取小时
let M = new Date().getMinutes();// 获取分钟
this.time = H + ":" + M;
let timeAndData = {
time: this.time,
data: this.data
};
this.Datas.unshift(timeAndData);
},
// 建立连接
websocketopen() {
// console.log("建立了连接");
},
// 连接失败
websocketonerror() {
this.initWebsocket();
// console.log("连接失败,重新连接");
},
// 断开连接
websocketclose(event) {
// console.log("断开连接",event);
},
// 发送数据
websocketsend(Data) {
this.websocket.send(Data);
},
3.将获取的时间和事件绑定到页面
<ul>
<li v-for="Data in Datas">
<div>
<span class="timeline-tag">{{Data.time}}</span>
<span class="timeline-text">{{Data.data}}</span>
</div>
</li>
</ul>