<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WenSocket</title>
<style>
div{
width: 200px;
height: 200px;
border:1px solid;
margin-top: 5px;
}
</style>
</head>
<body>
<input type="text" placeholder="请输入内容">
<button>提交</button>
<div></div>
<script>
const input = document.querySelector('input')
const button = document.querySelector('button')
const div = document.querySelector('div')
//创建WebSocket实例
const socket = new WebSocket("ws://localhost:8080/ws")
//监听服务是否链接
socket.addEventListener('open',()=>{
div.innerHTML = "服务链接成功"
})
//button触发点击事件，将input框中的内容发送至websocket
//查看websocket是否接收到数据：chrome F12打开控制台》Network》WS》echo.websocket.org》messages
button.addEventListener('click',()=>{
const value = input.value
socket.send(value)
})
// 将接收到的数据插入到div中
socket.addEventListener('message',(e)=>{
console.log(e)
div.innerHTML = e.data
})
</script>
</body>
</html>