虛擬主機使用HTTP代理和快遞

Question

我試圖效仿nodeje虛擬主機使用HTTP代理

代碼

httpProxy.createServer({ 
    hostnameOnly : true, 
    router : { 
     'secure.domain.com' : '127.0.0.1:9000' 
    } 
}).listen(8080); 

(function(){ 
    var app = express(); 
    app.set('port', 9000); 

    // Web request 
    app.get('/*', function(request, response){ 
     response.end('wolla'); 
    }); 

    var server = http.createServer(app).listen(app.get('port'), function(){ 
     console.log('Express server listening on port '+app.get('port')); 
    }); 
})(); 

易於使用中獲得靈感，但回報同樣的錯誤

例如表達

var http = require('http'), 
    httpProxy = require('http-proxy'); 
// 
// Create a basic proxy server in one line of code... 
// 
// This listens on port 8000 for incoming HTTP requests 
// and proxies them to port 9000 
httpProxy.createServer(9000, 'localhost').listen(8000); 

// 
// ...and a simple http server to show us our request back. 
// 
http.createServer(function (req, res) { 
    res.writeHead(200, { 'Content-Type': 'text/plain' }); 
    res.write('request successfully proxied!' + '\n' + JSON.stringify(req.headers, true, 2)); 
    res.end(); 
}).listen(9000); 

錯誤

/var/www/node/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js:103 
    var proxyReq = (options.target.protocol === 'https:' ? https : http).reque 
           ^
TypeError: Cannot read property 'protocol' of undefined 
    at Array.stream [as 3] (/var/www/node/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js:103:35) 
    at ProxyServer.<anonymous> (/var/www/node/node_modules/http-proxy/lib/http-proxy/index.js:83:21) 
    at Server.closure (/var/www/node/node_modules/http-proxy/lib/http-proxy/index.js:116:43) 
    at Server.EventEmitter.emit (events.js:98:17) 
    at HTTPParser.parser.onIncoming (http.js:2108:12) 
    at HTTPParser.parserOnHeadersComplete [as onHeadersComplete] (http.js:121:23) 
    at Socket.socket.ondata (http.js:1966:22) 
    at TCP.onread (net.js:525:27) 
Worker 31599 died (8). Restarting... 
Express server listening on port 9000 

Answer 1

如果你仔細看的docs，這是你必須按順序做，使這方面的工作是什麼：

httpProxy.createServer({ 
    target: 'http://localhost:9000' 
}).listen(8000);