我正在尝试在没有运气的情况下使用http.request的HTTP客户端设置超时.到目前为止我所做的是这样的:
var options = { ... }
var req = http.request(options, function(res) {
// Usual stuff: on(data), on(end), chunks, etc...
}
/* This does not work TOO MUCH... sometimes the socket is not ready (undefined) expecially on rapid sequences of requests */
req.socket.setTimeout(myTimeout);
req.socket.on('timeout', function() {
req.abort();
});
req.write('something');
req.end();
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任何提示?
我正在通过编写一个非常基本的 http/web 缓存代理来尝试 Node.js,并且遇到了一些我无法突破的问题。
假设我有一个非常基本的代理功能(侦听请求,将其传送到外部服务器,等待响应,将其传送回客户端),我如何检测客户端(Web 浏览器)何时取消请求?当用户在浏览器上单击“停止”/Esc 时,浏览器不会向我发送任何“请求”或信息,并且不会调用“响应”连接结束时的回调。
这就是我的意思:
http.createServer (clientRequest, clientResponse) {
var client = http.createClient (port, hostname);
var request = client.request (method, url, headers);
request.addListener ('response', function(response){
response.addListener ('data', function(chunk){
// forward data to clientResponse..
}
response.addListener ('end', function(){
// end clientResponse..
}
});
clientResponse.addListener('end', function(){
// this never gets called :(
// I want it to terminate the request/response created just above
}
}
Run Code Online (Sandbox Code Playgroud) 有一篇文章:如何在node.js中为客户端http连接设置超时
但没有一个答案会奏效.
所以,我有这样的代码:
var remote_client = http.createClient(myPost, myHost);
var path = '/getData?';
var param = { };
var request = remote_client.request("POST", path,);
// error case
remote_client.addListener('error', function(connectionException){
console.log("Nucleus Error: " + connectionException);
next(connectionException);
});
request.addListener('response', function (response) {
response.setEncoding('utf-8');
var body = '';
response.addListener('data', function (chunk) {
// get the result!
});
});
request.end();
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最大的问题是我连接的网址可能会超时.因此,我想设置一个超时,如15秒.如果是,则触发侦听器.
但是,我没有在http.createClient的文档中看到任何超时功能.请指教.谢谢.:)