这里有人可以给我一些使用node.js中的套接字的指针吗?
可以在端口8000上打开172.0.0.1上的tcp连接,例如使用net.createConnection(port,host)
var net = require('net'),
querystring = require('querystring'),
http = require('http'),
port = 8383,
host = 172.123.321.213,
path = /path/toService,
_post = '';
var server = http.createServer(function(req, res) {
if(req.method == 'POST') {
req.on('data', function(data) {
body+=data;
});
req.on('end', function() {
_post = querystring.parse(body);//parser post data
console.log(_post);
})
}
var socket = net.createConnection(port, host);
var socket = net.createConnection(port, host);
socket.on('error', function(error) {
send404(res, host, port);
})
socket.on('connect', function(connect) {
console.log('connection established');
res.writeHead(200, {'content-type' : 'text/html'});
res.write('<h3>200 OK:
Connection to host ' + host + ' established. Pid = ' + process.pid + '</h3>\n');
res.end();
var body = '';
socket._writeQueue.push(_post);
socket.write(_post);
console.log(socket);
socket.on('end', function() {
console.log('socket closing...')
})
})
socket.setKeepAlive(enable=true, 1000);
}).listen(8000);
send404 = function(res, host, port) {
res.writeHead(404, {'content-type': 'text/html'});
res.write('<h3>404 Can not establish connection to host: ' + host + ' on port: ' + port + '</h3>\n');
res.end();
}
但现在我需要将数据发送到定义的路径 - 如果我将路径添加到主机然后尝试连接,那么连接将失败。
有什么想法吗?
答案 0 :(得分:15)
你的“socket”对象只是一个简单的TCP socket,它只是一个简单的双向通信通道。您尝试使用的HTTP方法(例如res.writeHead()
)不适用,因此您必须手动编写请求。尝试这样的事情:
var socket = net.createConnection(port, host);
console.log('Socket created.');
socket.on('data', function(data) {
// Log the response from the HTTP server.
console.log('RESPONSE: ' + data);
}).on('connect', function() {
// Manually write an HTTP request.
socket.write("GET / HTTP/1.0\r\n\r\n");
}).on('end', function() {
console.log('DONE');
});