同步連接到節點js中的套接字

Question

我有一個簡單的節點js服務器，我想連接到另一個套接字，讀取數據，然后將其返回給客戶端。

http.createServer(function(req, res){
     var sock = new Socket();
        sock.connect(80, "www.google.com", function(){
            console.log("Connected to google..");
            sock.write("GET /\r\n\r\n");
        }); 
        sock.on("data", function(data){
            console.log(data.toString()); 
            res.writeHead(404, {"Content-type": "text/plain"});
            res.write(data, "binary");
            res.end(); 
            sock.end();
        });
        sock.on("end", function(){
            console.log("Disconnected from socket..");
        }); 
}, 8080);

但這顯然不起作用，因為對數據回調的調用是異步的。

那么，如何使用Node js完成此操作？

Answer 1

添加缺少的“ require”語句和server.listen（）調用以使腳本運行后，它對我來說很好用：

var http = require('http');
var Socket = require('net').Socket;
var server = http.createServer(function(req, res){
     var sock = new Socket();
        sock.connect(80, "www.google.com", function(){
            console.log("Connected to google..");
            sock.write("GET /\r\n\r\n");
        }); 
        sock.on("data", function(data){
            console.log(data.toString()); 
            res.writeHead(404, {"Content-type": "text/plain"});
            res.write(data, "binary");
            res.end(); 
            sock.end();
        });
        sock.on("end", function(){
            console.log("Disconnected from socket..");
        }); 
});
server.listen(8080);