安装
npm i ws
安装vue3响应式库
npm i @vue/reactivity
服务端创建连接--nodejs
javascript
// Nodejs 端 index.js
// 引入 WebSocket 库
const WebSocket = require('ws');
// 引入 Vue 响应式 API
const reactivity = require('@vue/reactivity')
const {
ref,
computed,
watch
} = reactivity
// 创建 WebSocket 服务器
const wss1 = new WebSocket.Server({
port: 8001
});
const wss2 = new WebSocket.Server({
port: 8002
});
// 记录数字
const count = ref(0)
// 计算出 10 倍
const sum = computed(() => 10 * count.value)
// 连接1
wss1.on('connection', (ws) => {
// 处理来自客户端的消息
ws.on('message', (message) => {
// count 变化
count.value = Number(String(message))
});
// 监听 count,并通知页面2
watch(count, v => {
ws.send(v)
})
});
// 连接2
wss2.on('connection', (ws) => {
// 处理来自客户端的消息
ws.on('message', () => {
// 执行清空命令
count.value = 0
});
// 监听 sum,并通知页面2
watch(sum, v => {
ws.send(v)
})
// 模拟定时任务
setTimeout(() => {
ws.send(sum.value)
}, 3600 * 12);
});
第一个页面连接8081--page1.vue
javascript
<template>
<div class="flex justify-center mb-3 text-4xl font-bold">页面1</div>
<Button type="primary" @click="click">点击更新数据</Button>
<div class="text-lg">当前数值:{{ count }}</div>
</template>
<script setup lang="ts">
import { Button } from 'ant-design-vue';
import { ref } from 'vue';
const count = ref(0);
// 创建 WebSocket 客户端
const socket = new WebSocket('ws://localhost:8001');
const click = () => {
count.value++;
// 发送消息到服务器
socket.send(`${count.value}`);
};
// 接受服务端的消息
socket.addEventListener('message', e => {
count.value = e.data;
});
</script>
第二个页面连接8082--page2.vue
javascript
<template>
<div class="flex justify-center mb-3 text-4xl font-bold">页面2</div>
<Button type="primary" @click="click">清空数据</Button>
<div class="text-lg">当前数值:{{ count }}</div>
</template>
<script setup lang="ts">
import { Button } from 'ant-design-vue';
import { ref } from 'vue';
const count = ref(0);
// 创建 WebSocket 客户端
const socket = new WebSocket('ws://localhost:8002');
const click = () => {
// 发送消息到服务器
socket.send('Hello, server!');
};
// 接受服务端的消息
socket.addEventListener('message', e => {
count.value = e.data;
});
</script>