Ethan Zhang e7h4n

Node 出现 uncaughtException 之后的优雅退出方案

Node 的异步特性是它最大的魅力，但是在带来便利的同时也带来了不少麻烦和坑，错误捕获就是一个。由于 Node 的异步特性，导致我们无法使用 try/catch 来捕获回调函数中的异常，例如:

try {
    console.log('进入 try/catch');
    require('fs').stat('SOME_FILE_DOES_NOT_EXIST', function readCallback(err, content) {
        if (err) {
            throw err; // 抛出异常

	<div>
	<div>
	<a href="" ng-click="expanded = true" ng-if="!expanded">展开</a>
	<a href="" ng-click="expanded = false" ng-if="expanded">收起</a>
	{{user.name}}
	</div>
	<div ng-if="expanded">
	{{user.info}}
	</div>
	</div>

	// ProcessContainer.js
	// Child wrapper. Redirect output to files, assign pid & co.
	// by Strzelewicz Alexandre

	var fs = require('fs');
	var p = require('path');
	var cst = require('../constants');
	var worker = require('cluster').worker;

	require('coffee-script');

	<!DOCTYPE HTML>
	<html lang="zh-CN" class="default-layout">
	<head>
	<link rel="icon" type="image/vnd.microsoft.icon" href="http://ytk.fbcontent.cn/s/c34fd141-favicon.ico">
	<meta http-equiv="content-type" content="text/html; charset=utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
	<title>不支持的浏览器 - 猿题库 - 手机电脑做题就用猿题库</title>
	<style type="text/css">
	.wrap { text-align: center; margin-top: 170px; }
	a { text-decoration: none; color: #A4BFDD; }

	exports.orderList = function (req, res, next) {
	var orderLogical = req.logical.bookOrder;
	orderLogical.query(function (err, orders) {
	if (err) {
	return next(err);
	}

	res.locals.orders = orders;
	res.render('book/page/OrderList');
	});

	'use strict';

	var exception = require('../lib/exception');
	var logger = require('../lib/logger');
	var config = require('../lib/config');

	/jshint maxparams: false, unused: false /
	module.exports = function (err, req, res, next) {
	if (req.path.indexOf('/' + config.get('view').staticUrl) === 0) {
	res.send(500, err);

	/**
	* DistributionChart.js, Jul 11, 2013
	*
	* Copyright 2013 fenbi.com. All rights reserved.
	* FENBI.COM PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
	*/

	/**
	* @author zhangyc <[email protected]>
	*/

	/**
	* TrendChart.js, May 31, 2013
	*
	* Copyright 2013 fenbi.com. All rights reserved.
	* FENBI.COM PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
	*/

	/**
	* @author zhangyc <[email protected]>
	*/

	server {
	listen 80;
	server_name tarzan-dev.zhenguanyu.com;

	location / {
	root /Users/pw/workspace/tarzan-web;
	autoindex on;
	}

	location /uni {

	var filter = function (mustLogin) {
	return function (req, res, next) {
	req.command.execute('currentUser', function (err, response) {
	if (err) {
	next(err);
	return;
	}

	if (mustLogin && response.statusCode >= 400) {
	res.redirect('/login?redirect=' + encodeURIComponent(req.url));