在处理Node.js时,我想澄清异步IO、非阻塞服务器的概念,在这个概念下很容易理解。
var express = require('express');
var app = express();
app.get('/test', function(req, res){
setTimeout(function(){
console.log("sleep doesn't block, and now return");
res.send('success');
}, 2000);
});
var
Node.js是一个事件驱动的I/O,它是一个单线程服务器,它对回调进行操作,从不在主线程上阻塞。
1. But how does it manage to non-blocking I/O?
2. if it does easy to manage, why don't thread-based system manage it?
3. Does not work the other threads (behind single event-driven thread) as like thread-based ?
4. if the other threads mea
我正在使用node.js构建一个TCP服务器,我得到了以下错误。如何解决这个问题?
node.js:134
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: ETIMEDOUT, Connection timed out
at Socket._readImpl (net.js:163:14)
at Socket._onReadable (net.js:631:22)
at IOWatcher.onReadable [as
在我的Angular/Node应用程序中,我在Node.js后端调用一个3rd party API,并且在向Angular.js前端发送数据时遇到了一个错误。
下面是我的Node.js代码的相关部分:
app.use('/callApi', function(req, res, next) {
var result;
var url = 'http://someApi.com/someData';
http.get(url, function(resp) {
var body = '';