可能的控制器或至少执行两次的功能
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【中文标题】可能的控制器或至少执行两次的功能【英文标题】：Possible Controller or at least the functions executing twice 【发布时间】：2017-10-03 11:38:19 【问题描述】：所以我收到此错误：“GET http://localhost:8000/blogs/undefined net::ERR_EMPTY_RESPONSE angular.js:12587”。
当我访问我的主博客页面和访问博客类别页面时会发生这种情况。查看我得到的网络选项卡： 1. blog-home.html 200 xhr angular.js 12587 4.6kb 21ms 2. 所有 200 xhr angular.js 12587 3.0kb 57ms 3.未定义待处理的xhr angular.js 12587 3.0kb 57ms 0kb
当我进入博客类别页面时也是如此。最终他们失败并踢出上面的错误。
所以在这被否决之前......我已经在堆栈上阅读并尝试过： 没有运气。也许我错过了什么或输入了错误的东西。我完全傻眼了，我觉得这显然超出了我的技能水平。所以这里有一堆代码...... 服务器.js
var express = require('express');
var favicon = require('serve-favicon');
var bodyParser = require('body-parser');
var Mailgun = require('mailgun-js');
var path = require('path');
require('colors');
var app = express();
app.use(favicon(path.join(__dirname, 'client/assets/images', '*****')))
app.use(bodyParser.urlencoded(extended:true));
app.use(bodyParser.json(extended:true))
app.use(express.static(path.join(__dirname, 'client')));
app.use(express.static("./bower_components"));
//app.all('/*', function(req, res, next)
// res.sendFile('index.html', root: 'client');
//);
require('./server/config/mongoose.js');
var routes = require('./server/config/routes.js');
routes(app);
var api_key = '*********';
var domain = '*********';
var mailgun = require('mailgun-js')(apiKey: api_key, domain: domain);
var data =
from: '********',
to: '********',
subject: 'Hello',
text: 'Testing some Mailgun awesomness!'
;
mailgun.messages().send(data, function (error, body)
console.log(body);
);
app.listen(8000, function ()
console.log("I'm listening...".blue);
)索引.html
<!DOCTYPE html>
<html lang="en" ng-app="Bridgeman">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<meta name="description" content="">
<meta name="author" content="">
<meta name="revisit-after" content="10 days">
<meta name="googlebot" content="noodp">
<meta name="msnbot" content="noodp">
<meta name="slurp" content="noodp, noydir">
<meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self' 'unsafe-inline' ; connect-src 'self'; img-src * data:; style-src 'self' 'unsafe-inline'; font-src * data:; frame-src https://www.google.com/maps/embed?pb=!1m14!1m12!1m3!1d44591.890384371676!2d-118.36723983279781!3d33.83006153459027!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!5e0!3m2!1sen!2sus!4v1492366398808 ">
<meta content="/assets/images/******_BigBearSnowTrail.jpg" itemprop="image">
<link href="/assests/images/*******.ico" rel="shortcut icon">
<base href="/" />
<title></title>
<link href="assets/css/bootstrap.min.css" rel="stylesheet">
<link href="assets/css/modern-business.css" rel="stylesheet">
<link href="assets/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="angular/angular.js"></script>
<script type="text/javascript" src="angular-route/angular-route.js"></script>
<script src="app.js"></script>
<script src="/factories/ContactFactory.js"></script>
<script src="/factories/loginFactory.js"></script>
<script src="/factories/blogFactory.js"></script>
<script src="/controllers/contactController.js"></script>
<script src="/controllers/servicesController.js"></script>
<script src="/controllers/blogController.js"></script>
<script src="/controllers/blogViewController.js"></script>
<script src="/controllers/blogAWSController.js"></script>
<script src="/controllers/loginController.js"></script>
<base target="_blank">
</head>
<body>
<div ng-include='"templates/header.html"'></div>
<div ng-view=""></div>
<div ng-include='"templates/footer.html"'></div>
<script src="assets/js/jquery.js"></script>
<script src="assets/js/bootstrap.min.js"></script>
</body>
</html>app.js（如您所见，我试图将 AWS 类别分离到它自己的控制器中，并且在加载该页面时都会触发）
var Bridgeman = angular.module('Bridgeman', ['ngRoute']);
Bridgeman.config(['$routeProvider', '$httpProvider', '$locationProvider', '$qProvider', function($routeProvider, $httpProvider, $locationProvider, $qProvider)
$qProvider.errorOnUnhandledRejections(false);
$httpProvider.interceptors.push(function($q, $location)
return
'responseError': function(rejection)
if(rejection.status == 401)
$location.url('/');
return $q.reject(rejection);
);
$routeProvider
.when('/',
templateUrl:'partials/home.html',
).when('/about',
templateUrl:'partials/about.html',
).when('/services',
templateUrl: 'partials/services.html',
controller: 'servicesController'
).when('/blog',
templateUrl: 'partials/blog-home.html',
controller: 'blogViewController'
).when('/blogAWS',
templateUrl: 'partials/blog-aws.html',
controller: 'blogAWSController'
).when('/blogSEO',
templateUrl: 'partials/blog-SEO.html',
controller: 'blogViewController'
).when('/blogSecurity',
templateUrl: 'partials/blog-Security.html',
controller: 'blogViewController'
).when('/blogBusiness',
templateUrl: 'partials/blog-Business.html',
controller: 'blogViewController'
).when('/blogSportsTech',
templateUrl: 'partials/blog-SportsTech.html',
controller: 'blogViewController'
).when('/blog-post/:id',
templateUrl: 'partials/blog-post.html',
controller: 'blogViewController'
).when('/contact',
templateUrl: 'partials/contact.html',
controller: 'contactController'
).when('/login',
templateUrl:'partials/login.html',
controller: 'loginController'
).when('/admin',
templateUrl:'partials/admin.html',
controller: 'blogController'
).otherwise(
redirectTo:'/'
);
$locationProvider.html5Mode(true);
])
Bridgeman.run(function($rootScope, $location, $anchorScroll, $routeParams)
$rootScope.$on('$routeChangeSuccess', function(newRoute, oldRoute)
$location.hash($routeParams.scrollTo);
$anchorScroll();
);
)blog-home.html（这是在我的 blogViewController 中触发这两个功能的主博客页面）
<!-- Page Content -->
<div class="container">
<!-- Page Heading/Breadcrumbs -->
<div class="row">
<div class="col-lg-12">
<h1 class="page-header">Blog Home
<small>My insights just for you</small>
</h1>
<ol class="breadcrumb">
<li><a href="/blog">Home</a>
</li>
<li class="active">Blog Home</li>
</ol>
</div>
</div>
<!-- /.row -->
<div class="row">
<!-- Blog Entries Column -->
<div class="col-md-8">
<div class="blogs" ng-repeat="b in blogs | orderBy:'-createdAt' | filter:searchblogs">
<!-- Blog Post -->
<h2>
<p>b.title</p>
</h2>
<p class="lead">
by b._user.name in the b.category category
</p>
<p><i class="fa fa-clock-o"></i> Posted on b.createdAt | date: "MMM. dd, yyyy"</p>
<hr>
<p>b.snippet</p>
<hr>
<p>b.content</p>
<a class="btn btn-primary" ng-href="/blog-post/b._id">Read More <i class="fa fa-angle-right"></i></a>
<hr>
</div>
<hr>
</div>
<!-- Blog Sidebar Widgets Column -->
<div class="col-md-4">
<!-- Blog Search Well -->
<div class="well">
<h4>Search my blogs</h4>
<div class="input-group">
<input type="text" class="form-control" ng-model="searchblogs">
<span class="input-group-btn">
<button class="btn btn-default" type="button"><i class="fa fa-search"></i></button>
</span>
</div>
<!-- /.input-group -->
</div>
<!-- Blog Categories Well -->
<div class="well">
<h4>Blog Categories</h4>
<div class="row">
<div class="col-lg-6">
<ul class="list-unstyled">
<li><a href="/blogAWS">AWS</a>
</li>
<li><a href="/blogSEO">SEO</a>
</li>
<li><a href="/blogSecurity">Security</a>
</li>
<li><a href="/blogBusiness">Business Tips</a>
</li>
</ul>
</div>
<!-- /.col-lg-6 -->
<div class="col-lg-6">
<ul class="list-unstyled">
<li><a href="/blogSportsTech">Tech in Sports</a>
</li>
<li><a href="#">Coming Soon</a>
</li>
<li><a href="#">Coming Soon</a>
</li>
<li><a href="#">Coming Soon</a>
</li>
</ul>
</div>
<!-- /.col-lg-6 -->
</div>
<!-- /.row -->
</div>
<!-- Side Widget Well -->
<div class="well">
<h4>My Blog</h4>
<p>Here is a collection of my genius (ha!) and tech insights. I'm sure sooner than later I will discuss Formula 1 tech but be assured there will be plenty of SEO and various web development tips/tools/tricks. And lets not forget some general business savviness I've learned over the years.</p>
</div>
</div>
</div>
<!-- /.row -->blogViewController（函数在哪里。同样，我注释掉了 getOneBlog 并且没有发生错误。那么在单击按钮之前触发此火灾的原因是什么？）
Bridgeman.controller('blogViewController', function($scope, blogFactory, $location, $routeParams)
console.log("in the blog VIEW controller");
$scope.blogs = [];
$scope.one = [];
blogFactory.getAllBlogs(function(output)
$scope.blogs = output;
console.log(output);
)
blogFactory.getOneBlog($routeParams.id, function(output)
$scope.one = output;
console.log(output);
)
);blogFactory（我知道这里没有问题）
Bridgeman.factory('blogFactory', function($http)
var factory = ;
factory.submitNewBlog = function(input, callback)
$http.post('/blogs/new', input).then(function(output)
console.log("we just added a new blog");
callback(output.data);
);
//factory.submitNewComment = function(input, callback)
// $http.post('/comments/new', input).then(function(output)
// console.log("we just added a new comment");
// callback(output.data);
// );
//
factory.getAllBlogs = function(callback)
$http.get('/blogs/all').then(function(output)
console.log("we just got all blogs");
callback(output.data);
);
factory.getOneBlog = function(blogID, callback) //factory.getOneBlog = function(blogID, callback)
$http.get('/blogs/' + blogID).then(function (output) //$http.get('blogs/' + blogID).then(function (output)
console.log(output.data); //callback(output.data);
console.log("we just got one blog");
callback(output.data);
);
return factory;
);路线（这里有几种不同的风格，只是结合不同的格式来解决这个问题）
var users = require('./../controllers/users.js');
var blogs = require('./../controllers/blogs.js');
module.exports = function(app)
app.post('/reg', function(req, res)
users.reg(req, res);
);
app.post('/login', function(req, res)
users.login(req, res);
);
app.get('/blogs/all', function(req, res)
blogs.getAllBlogs(req, res);
);
app.get('/blogs/:id', blogs.getOneBlog); //app.get('/blogs/:id', blogs.getOneBlog)
app.post('/blogs/new', function(req, res)
blogs.addBlog(req, res);
);
app.post('/contact', function(req,res)
var api_key = 'key-2451a2b90a87be616ab68b8f7c8f97ea';
var domain = 'sandbox7dedeb0d5d384b6a8ce4f49165204257.mailgun.org';
var mailgun = require('mailgun-js')(apiKey: api_key, domain: domain);
var data =
from: 'Website inquiry <postmaster@sandbox7dedeb0d5d384b6a8ce4f49165204257.mailgun.org>',
to: '*************com',
subject: req.body.full_name+" has sent you a message",
html:
req.body.full_name+" ..."+
req.body.phone+" ..."+
req.body.email+" ..."+
req.body.message
;
mailgun.messages().send(data, function (error, body)
console.log(body);
console.log("working...");
if(!error)
res.send("Your message has been sent");
else
res.send("Uh oh... something went wrong!");
);
);
blogs.js 服务器端控制器（这里没有问题...我知道）
var Blog = mongoose.model('Blog');
module.exports = (function()
return
getAllBlogs: function(req, res)
Blog.find().populate([path : '_user']).exec(function(err, b)
if(err)
console.log("there was an error when getting all blogs".red);
else
console.log(b);
console.log("successfully got all blogs".green);
res.json(b);
);
,
getOneBlog: function(req, res)
console.log('Rich band aid');
if (req.params.id !== 'undefined')
console.log('there was an id', req.params.id);
Blog.findOne(_id: req.params.id).exec(function(err, b) //(_id: req.params.id, function(err,b))
if(err)
console.log('error is', err);
console.log("there was an error when getting the blog".red);
else
console.log(b);
console.log("successfully got the blog".green);
res.json(b);
);
else
console.log('no id');
,
addBlog: function(req, res)
console.log("===========================".yellow);
console.log(req.body);
console.log("===========================".yellow);
var b = new Blog(category: req.body.category, title: req.body.title, snippet: req.body.snippet, content: req.body.content, _user: req.body._user)
b.save(function(err)
if(err)
console.log("there was an error when saving a blog".red);
else
console.log(b);
console.log("successfully saved the above blog".green);
res.redirect('/blogs/all');
)
)();还有 mongoose db（这里没有问题……我知道）
var mongoose = require('mongoose');
// Create the message schema
var BlogSchema = new mongoose.Schema(
category: type: String, required: true, minlength: 3, enum:['Security', 'Business', 'SEO', 'AWS', 'Tech in Sports'],
title: type: String, required: true, minlength: 3,
snippet: type: String, required: true, minlength: 3,
content: type: String, required: true, minlength: 3,
_user: type: mongoose.Schema.Types.ObjectId, ref: 'User'
, timestamps: true);
mongoose.model('Blog', BlogSchema);非常感谢任何帮助。谢谢
PS...是的，当您尝试刷新页面时，我知道 frame-src 和 font-src 的 CPS 错误。超级烦。
【问题讨论】：
请检查你的角度路径， @RAj 感谢您的指导。我添加了 server.js，希望您能更详细地说明您的意思？非常感谢您抽出宝贵的时间和这个菜鸟。 @RAj 所以我一直在使用 angular 脚本标签，唯一有任何区别的事情是当我将 angular 和 angular-route 脚本标签移动到索引页面的底部时。当我这样做时，我可以转到我的博客主页，并且只是页面本身和 getAllBlogs 被触发。 getOneBlog 没有触发，也没有被卡住。不幸的是，页面上没有呈现任何博客。 请创建 jsfiddle，以便我调试问题。 @RAj - 感谢您的帮助，但请查看答案。花了一些时间，但我和一个朋友想出了一个解决方案。 【参考方案1】：能够和朋友一起解决。通过将 2 个函数包装到“if”语句中解决了问题。它可能不是正确的解决方案，但效果很好。
Bridgeman.controller('blogViewController', function($scope, blogFactory, $location, $routeParams)
console.log("in the blog VIEW controller");
$scope.blogs = [];
$scope.one = [];
if ($routeParams.id)
blogFactory.getOneBlog($routeParams.id, function(output)
$scope.one = output;
console.log(output);
);
else
blogFactory.getAllBlogs(function(output)
$scope.blogs = output;
console.log(output);
);
);【讨论】：
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