nodejs 集成 Socket.io服务
npm install -D socket.io
新建一个socketRouter.js文件。写入如下内容
function registerSocket(app) {
var server = require('http').createServer(app);
//服务器监听事件
server.on('listening', function () {
console.log("server listening:" + server.address().port);
});
//服务器错误事件
server.on("error", function (exception) {
console.log("server error:" + exception);
});
//引入socket.io
var io = require('socket.io')(server, {
//处理跨域问题
cors: {
origin: "*",
methods: ["PUT", "POST", "GET", "DELETE", "OPTIONS"],
allowedHeaders: "*",
credentials: true
},
pingTimeout: 15000,
pingInterval: 5000
});
io.on('connection', function (socket) {
console.log('服务器建立连接了');
// 创建房间
socket.on('createroom', req => {
let roomid = req.roomid;
console.log('连接服务房间号:', roomid);
socket.join(roomid);
//发送消息
socket.to(roomid).emit('message', {
msg: roomid
});
//发送消息
// socket.emit('message', {
// msg: '创建房间' + roomid + '成功'
// })
socket.emit('message', {Code: 1,Message:"服务器信息"}, data => {
console.log("received message callback from client", data);
});
socket.emit('hello', {msg:"hello text"});
});
// 接受消息
socket.on('sayMsg', req => {
let roomid = req.roomid
let msg = req.msg
console.log("房间号:", roomid);
console.log("接收到的信息:", msg);
socket.to(roomid).emit('message', {
roomid: roomid,
msg: msg
})
});
socket.on("ack", (name, fn) => {
fn({
result: true,
message: `ack(${name})`
});
});
//数据错误事件
socket.on('error', function (exception) {
console.log('socket error:' + exception);
socket.end();
});
// 连接断开，如关闭页面时触发
socket.on('disconnect', function () {
console.log('已断开链接');
delete global.clients[global.clientIds[socket.id]];
delete global.clientIds[socket.id];
});
//客户端关闭事件
socket.on('close', function (data) {
console.log('close: ' +
socket.remoteAddress + ' ' + socket.remotePort);
});
global.socket = socket;
});
//设置统一的端口号(注：要把bin目录下www文件的端号注册给注释)
const port = process.env.PORT || 3000;
server.listen(port, () => console.log(`Listening on port ${port}`));
}
module.exports = registerSocket;www文件端口号注释
然后在app.js文件中引入socketRouter.js文件然后进行注册
引入
注册：
C# 客户端：
引入SocketIOClient的命名空间
var client = new SocketIO("http://192.168.0.197:3000/", new SocketIOOptions
{
EIO = 4
});
//连接成功
client.OnConnected += async (sender, e) =>
{
string id = System.Guid.NewGuid().ToString("N");
//创建房间号
await client.EmitAsync("createroom", new
{
roomid = id
});
//监听服务端下发消息
client.On("message", response =>
{
Debug.WriteLine($"服务端下发信息:{response}");
});
await client.EmitAsync("sayMsg", new
{
roomid = id,
msg="您来了，欢迎您！"
});
};
client.OnDisconnected += (sender, e) =>
{
//连接断开时
};
await client.ConnectAsync();启动nodejs socket.io服务端
启动C#客户端然后看服务端输出
js端使用：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
input {
background-color: #fff;
background-image: none;
border-radius: 4px;
border: 1px solid #bfcbd9;
box-sizing: border-box;
color: #1f2d3d;
font-size: inherit;
height: 40px;
line-height: 1;
outline: 0;
padding: 3px 10px;
}
.el-button--primary {
color: #fff;
background-color: #20a0ff;
border-color: #20a0ff;
}
.el-button {
display: inline-block;
line-height: 1;
white-space: nowrap;
cursor: pointer;
background: #00aac5;
border: 1px solid #c4c4c4;
color: #fff;
margin: 0;
padding: 10px 15px;
border-radius: 4px;
outline: 0;
text-align: center;
}
</style>
</head>
<body>
<div>
<div id="content">
</div>
</div>
<div>
<input type="text" id="input">
<ul>
<li>
<button class="el-button el-button--primary el-button--large" type="button"
onclick="startConnect()"><span>开始连接</span></button>
<button class="el-button el-button--primary el-button--large" type="button"
onclick="createRoom()"><span>创建房间号</span></button>
<button class="el-button el-button--primary el-button--large" type="button"
onclick="sendMsg()"><span>测试发送消息</span></button>
<button class="el-button el-button--primary el-button--large" type="button"
onclick="close()"><span>断开连接</span></button>
</li>
</ul>
</div>
<!-- 注意，这里的静态资源一定要是绝对路径，否则会被拦截 -->
<script src="./static/socket.io.js"></script>
<script>
var socket
let roomid = new Date().getTime()
// 开始连接
function startConnect() {
socket = io.connect('ws://192.168.99.215:3000');
console.log("连接成功", socket);
createRoom ();
}
// // 创建房间号
function createRoom() {
console.log(roomid)
socket.emit('createroom', {
roomid: roomid
});
}
// 向指定的房间号发送消息
function sendMsg() {
// 获取yinput 表单里面的值
let t = document.getElementById('input').value
if (!t) return
let html = document.createElement('p')
html.innerHTML = `你细声说：<span>${t}</span>`
document.getElementById('content').appendChild(html)
socket.emit('plateInfo', {
roomid: roomid,
msg: t
});
}
function close() {
let t = "断开";
socket.emit('disconnect', {
roomid: roomid,
msg: t
});
}
</script>
</body>
</html>注:要引入客户端的js文件
评论区