我需要在诸如PHP中的nodejs中编写套接字。在PHP语言中,我执行以下操作:
$http_request = "POST $path HTTP/1.0\r\n";
$http_request .= "Host: $host\r\n";
$http_request .= "User-Agent: Picatcha/PHP\r\n";
$http_request .= "Content-Length: " . strlen($data) . "\r\n";
$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
$http_request .= "\r\n";
$http_request .= $data;
$response = '';
$fs = @fsockopen($host, $port, $errno, $errstr, 10)
if (FALSE == $fs) {
die('Could not open socket');
}
fwrite($fs, $http_request);
如何在nodejs服务器上执行上述操作?
答案 0 :(得分:4)
看看the documentation for the net
module。
<强>
net.connect(arguments...)
强>构造一个新的套接字对象并打开一个到给定位置的套接字。
该函数返回a Socket
。
页面上有一个小示例代码段,用于演示其用途:
var net = require('net');
var client = net.connect(8124, function() { //'connect' listener
console.log('client connected');
client.write('world!\r\n');
});
client.on('data', function(data) {
console.log(data.toString());
client.end();
});
client.on('end', function() {
console.log('client disconnected');
});
自从我编写PHP以来已经有一段时间了,但我会尝试将其作为代码的翻译:
var net = require('net');
var http_request;
http_request = "POST " + path + " HTTP/1.0\r\n";
http_request += "Host: " + host + "\r\n";
http_request += "User-Agent: Picatcha/PHP\r\n";
http_request += "Content-Length: " + data.length + "\r\n";
http_request += "Content-Type: application/x-www-form-urlencoded;\r\n";
http_request += "\r\n";
http_request += data;
var client = net.connect(80, host, function() {
client.end(data);
});
除非有理由不这样做,否则你可以使用the request
method of the http
module来发出HTTP请求。
答案 1 :(得分:0)
在NodeJS中,我们有一些用于套接字编程的模块,但最受欢迎的是net
。
var net = require('net');
var HOST = '127.0.0.1';
var PORT = 6969;
// Create a server instance, and chain the listen function to it
// The function passed to net.createServer() becomes the event handler for the 'connection' event
// The sock object the callback function receives UNIQUE for each connection
net.createServer(function(sock) {
// We have a connection - a socket object is assigned to the connection automatically
console.log('CONNECTED: ' + sock.remoteAddress +':'+ sock.remotePort);
// Add a 'data' event handler to this instance of socket
sock.on('data', function(data) {
console.log('DATA ' + sock.remoteAddress + ': ' + data);
// Write the data back to the socket, the client will receive it as data from the server
sock.write('You said "' + data + '"');
});
// Add a 'close' event handler to this instance of socket
sock.on('close', function(data) {
console.log('CLOSED: ' + sock.remoteAddress +' '+ sock.remotePort);
});
}).listen(PORT, HOST);
console.log('Server listening on ' + HOST +':'+ PORT);
您可以通过在终端上运行net
轻松安装npm install net
模块。
参考:http://www.hacksparrow.com/tcp-socket-programming-in-node-js.html