我已经使用socket.io在客户端和服务器之间建立了通信，现在我正在使用WebSockets从客户端向服务器发送命令，我想在服务器上从客户端运行这些收到的命令
这是我的解决方法
HTML（客户端）
<html>
<body>
I am client
</body>
<script>
const ws = new WebSocket('ws://localhost:9898/');
ws.onopen = function() {
console.log('WebSocket Client Connected');
ws.send('npm run build');
};
ws.onmessage = function(e) {
console.log("Received: '" + e.data + "'");
};
</script>
</html>
这里是server.js
const http = require('http');
const WebSocketServer = require('websocket').server;
const server = http.createServer();
server.listen(9898);
const wsServer = new WebSocketServer({
httpServer: server
});
wsServer.on('request', function(request) {
const connection = request.accept(null, request.origin);
connection.on('message', function(message) {
console.log(message.utf8Data);
connection.sendUTF('Hi this is WebSocket server!');
});
connection.on('close', function(reasonCode, description) {
console.log('Client has disconnected.');
});
});
现在，当我们运行服务器并打开index.html时，服务器会收到以下消息
`npm run build`
现在如何使用子进程在服务器上运行此命令？
您可以使用child_process为server.js生成一个新进程，如下所示
const http = require('http');
const WebSocketServer = require('websocket').server;
const util = require('util');
const exec = util.promisify(require('child_process').exec);
const server = http.createServer();
server.listen(9898);
const wsServer = new WebSocketServer({
httpServer: server
});
wsServer.on('request', function(request) {
const connection = request.accept(null, request.origin);
connection.on('message', function(message) {
console.log(message.utf8Data);
const { stdout, stderr } = await exec(message.utf8Data);
console.log('stdout:', stdout);
console.log('stderr:', stderr);
connection.sendUTF('Hi this is WebSocket server!');
});
connection.on('close', function(reasonCode, description) {
console.log('Client has disconnected.');
});
});