做动态在网站需要学什么大型网站建站公司

可复制现成代码直接使用！！

1.下边的例子演示了创建10个WebSocket 实例，当其中某一个连接失败时，会自动进行重连

<template><div></div>
</template><script setup>
import { ref, reactive, onMounted } from "vue";
const person = reactive({});
const wsConnections = ref([]);
onMounted(() => {//初始化创建一个ip数组 遍历过后调用创建十个sokect实例const urls = ["wss://url1","wss://url2","wss://url3","wss://url4","wss://url5","wss://url6","wss://url7","wss://url8","wss://url9","wss://url10",];wsConnections.value = urls.map((url, index) => new WebSocketConnection(url, index));//以上是针对初始化创建十个soket  如初始化只创建一个sokey只需直接new实例就行
//   new WebSocketConnection(传入ip)  //只创建一个连接
});
class WebSocketConnection {constructor(url, index) {//连接的url地址this.url = url;this.ws = new WebSocket(url);this.bindEvents(); //创建实例过后的回调}//监听回调（连接成功、错误、断开、接收消息）bindEvents() {this.ws.onopen = () => {console.log(`${this.url} 连接成功.`);};this.ws.onerror = (error) => {console.error(`连接错误 ${this.url}: ${error}`);};this.ws.onclose = (e) => {console.log(`${this.url} 连接关闭`);if (e.code !== 1000) {console.log(`Reconnecting ${this.url}...`);//重连 此处可以加个setTimeout 多少秒后再重连this.reconnect();}};}//重连reconnect() {this.ws = new WebSocket(this.url);this.bindEvents();}
}
</script>
<style scoped lang='less'>
</style>

2.定时给后端发送消息

<template><div></div>
</template><script setup>
import { ref, reactive, onMounted, onUnmounted } from "vue";
const person = reactive({});
const wsConnections = ref([]);
onMounted(() => {//初始化创建一个ip数组 遍历过后调用创建十个sokect实例const urls = ["wss://url1","wss://url2","wss://url3","wss://url4","wss://url5","wss://url6","wss://url7","wss://url8","wss://url9","wss://url10",];wsConnections.value = urls.map((url, index) => new WebSocketConnection(url, index));//以上是针对初始化创建十个soket  如初始化只创建一个sokey只需直接new实例就行//   new WebSocketConnection(传入ip)  //只创建一个连接
});
class WebSocketConnection {constructor(url, index) {//连接的url地址this.url = url;this.ws = new WebSocket(url);this.bindEvents(); //创建实例过后的回调this.startSending(); //给后端发送消息}//监听回调（连接成功、错误、断开、接收消息）bindEvents() {this.ws.onopen = () => {console.log(`${this.url} 连接成功.`);};this.ws.onerror = (error) => {console.error(`连接错误 ${this.url}: ${error}`);};this.ws.onclose = (e) => {console.log(`${this.url} 连接关闭`);if (e.code !== 1000) {console.log(`Reconnecting ${this.url}...`);//重连 此处可以加个setTimeout 多少秒后再重连this.reconnect();}};}//重连reconnect() {this.ws = new WebSocket(this.url);this.bindEvents();}//   给后端发送消息startSending() {this.interval = setInterval(() => {if (this.ws.readyState === WebSocket.OPEN) {this.ws.send("发给后端的");}}, 5000);}//   停止发消息时调用stopSending() {clearInterval(this.interval);}
}
onUnmounted(() => {wsConnections.value.forEach((connection) => {connection.stopSending(); // 停止定时消息connection.ws.close(); // 关闭WebSocket连接});
});
</script>
<style scoped lang='less'>
</style>

2.将十个链接收到的数据全部存在vuex 其他组件只使用第一个链接的数据

import { createStore } from 'vuex'export default createStore({state: {messages: []},mutations: {setMessages(state, payload) {// 我们这里假设payload的格式为 { index: n, message: msg }state.messages[payload.index] = payload.message},},actions: {}
})

修改WebSocketConnection 类，使其接收到消息的时候调用 setMessages mutation：

import { ref, onMounted, onUnmounted } from 'vue';
import store from '@/store'class WebSocketConnection {constructor(url, index) {this.url = url;this.index = index;this.ws = new WebSocket(url);this.bindEvents();this.startSending();}bindEvents() {// ...其它代码略 看上面this.ws.onmessage = (message) => {// 当接收到数据时，将数据保存到 Vuexstore.commit('setMessages', { index: this.index, message: message.data });};}// ...其它代码略 看上面
}// 在 onMounted 钩子函数中创建WebSocket连接
onMounted(() => {const urls = ['wss://url1', 'wss://url2', 'wss://url3', 'wss://url4', 'wss://url5', 'wss://url6', 'wss://url7', 'wss://url8', 'wss://url9', 'wss://url10'];wsConnections.value = urls.map((url, index) => new WebSocketConnection(url, index));
});

然后，在其他组件中以这种方式使用第一个Websocket的消息：

<template><div>Received Message: {{ message }}</div>
</template><script setup>
import { computed } from 'vue'
import { useStore } from 'vuex'
const store = useStore()
const message = computed(() => store.state.messages[0]) // 获取第一个消息</script>

3.使用pinia将十个链接收到的数据全部存了 其他组件只使用第一个链接的数据

import { defineStore } from "pinia"
export const useUsersStore = defineStore('users', {// 其它配置项state: () => {return {messages: [],};},getters: {},actions: {setMessage(payload) {this.messages[payload.index] = payload.messages}}
})

然后，在 WebSocketConnection 类中调用 setMessage 来储存数据：

import { ref, onMounted, onUnmounted } from 'vue';
import { useUsersStore } from "@/store/user.js";class WebSocketConnection {constructor(url, index) {this.url = url;this.index = index;this.ws = new WebSocket(url);this.store = useUsersStore();this.bindEvents();this.startSending();}bindEvents() {// ...同上面this.ws.onmessage = (message) => {// 收到信息后，将其存储在Pinia中this.store.setMessage({ index: this.index, message: message.data });};}// ...同上面e...
}onMounted(() => {const urls = ['ws://url1', 'ws://url2', 'ws://url3', 'ws://url4', 'ws://url5', 'ws://url6', 'ws://url7', 'ws://url8', 'ws://url9', 'ws://url10'];wsConnections.value = urls.map((url, index) => new WebSocketConnection(url, index));});onUnmounted(() => {wsConnections.value.forEach(connection => {connection.stopSending();  connection.ws.close();  });});

然后在其他组件中可以像这样使用第一个连接收到的数据：

<template><div>Received Message: {{ message }}</div>
</template><script setup>
import { computed } from 'vue'
import { useUsersStore } from "@/store/user.js";const store = useUsersStore ()const message = computed(() => store.messages[0]) // 使用第一条消息</script>