编辑经过进一步的测试,我发现在这个应用程序和默认安装的mean.js上都会发生这种情况。我在Mac上本地运行它。当我使用“node server.js”运行任一app时,它们不会崩溃。
我正在使用带有grunt-nodemon的MEAN堆栈,并且当访问快速URL时节点崩溃。但它并不总是一致的。有时它可以工作,有时当URL被命中时节点崩溃而没有数据,有时我得到响应并且节点在之后立即崩溃。
浏览器控制台响应
http://localhost:8000/api/users net::ERR_CONNECTION_REFUSED
终端输出:
Mongoose: users.insert({ firstname: 'mike', lastname: 'jones', email:'[email protected]', role: 'admin', password: 'mike', _id: ObjectId("57485c16fc11894b96c28057"), created: new Date("Fri, 27 May 2016 14:39:18 GMT"), __v: 0 })
user.save success
node crash
[nodemon] app crashed - waiting for file changes before starting...
在这种情况下,POST请求通过,添加了用户,然后节点崩溃,但有时它会在POST成功之前崩溃。节点偶尔也会在GET请求中崩溃。
gruntfile.js:
module.exports = function(grunt) {
// Load grunt tasks automatically
require('load-grunt-tasks')(grunt);
var pkg = grunt.file.readJSON('package.json');
var options = {
paths: {
app: 'app',
assets: 'app/assets',
dist: 'app/dist',
distAssets: 'app/dist/assets',
html: 'app/html',
htmlTmp: '.tmp/htmlsnapshot',
htmlAssets: 'app/html/assets',
index: 'app/dist/index.html',
indexDev: 'app/index.html',
indexTmp: '.tmp/html/index.html'
},
pkg: pkg,
env: {
test: {
NODE_ENV: 'test'
},
dev: {
NODE_ENV: 'development'
},
prod: {
NODE_ENV: 'production'
}
}
};
// Load grunt configurations automatically
var configs = require('load-grunt-configs')(grunt, options);
// Define the configuration for all the tasks
grunt.initConfig(configs);
// Connect to the MongoDB instance and load the models
grunt.task.registerTask('mongoose', 'Task that connects to the MongoDB instance and loads the application models.', function () {
// Get the callback
var done = this.async();
// Use mongoose configuration
var mongoose = require('./config/lib/mongoose.js');
// Connect to database
mongoose.connect(function (db) {
done();
});
});
grunt.registerTask('bumper', ['bump-only']);
grunt.registerTask('css', ['sass']);
grunt.registerTask('default', [
'sass',
'copy:dev',
'nodemon',
'concurrent:dev',
'watch',
'mongoose'
]);
grunt.registerTask('shared', [
'clean:demo',
'copy:demo',
'sass',
'ngconstant',
'useminPrepare',
'concat:generated',
'cssmin:generated',
'uglify:generated',
'filerev',
'usemin',
'imagemin',
'usebanner'
]);
grunt.registerTask('demo', [
'shared',
'copy:postusemin',
'grep:demo'
]);
grunt.registerTask('dist', [
'shared',
'copy:postusemin',
'copy:dist',
'grep:dist',
'compress',
'copy:postusemin',
'grep:demo',
]);
grunt.loadNpmTasks('grunt-forever');
};
default.js
module.exports.tasks = {
// version update
bump: {
options: {
files: ['package.json', 'bower.json'],
pushTo: 'origin'
}
},
// application constants
ngconstant: {
options: {
dest: '<%= paths.assets %>/js/app.constants.js',
name: 'app.constants',
}
},
// remove all bs from css
cssmin: {
options: {
keepSpecialComments: 0
}
},
markdown: {
all: {
files: [
{
src: 'README.md',
dest: '<%= paths.assets %>/tpl/documentation.html'
}
],
options: {
template: '<%= paths.assets %>/tpl/_documentation_template.html',
}
}
}
};
dev.js:
var _ = require('lodash'),
defaultAssets = require('./assets/default'),
testAssets = require('./assets/test'),
testConfig = require('./env/test'),
fs = require('fs'),
path = require('path');
module.exports.tasks = {
// copy files to correct folders
copy: {
dev: {
files: [
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/font-awesome/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/material-design-iconic-font/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/roboto-fontface/fonts', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/weather-icons/font', dest: '<%= paths.assets %>/fonts' },
{ expand: true, src: '**', cwd: '<%= paths.app %>/bower_components/bootstrap-sass/assets/fonts/bootstrap', dest: '<%= paths.assets %>/fonts' }
]
}
},
// watch for changes during development
watch: {
js: {
files: ['Gruntfile.js', '<%= paths.assets %>/js/**/*.js'],
tasks: ['jshint'],
options: {
livereload: true
}
},
css: {
files: [
'<%= paths.assets %>/css/**/*.scss'
],
tasks: ['sass'],
options: {
livereload: true
}
},
markdown: {
files: [
'README.md'
],
tasks: ['markdown']
},
tasks: [ 'express:dev' ],
},
// debug while developing
jshint: {
all: ['Gruntfile.js', '<%= paths.assets %>/js/**/*.js']
},
concurrent: {
dev: {
tasks: ['nodemon', 'node-inspector', 'watch'],
options: {
logConcurrentOutput: true
}
}
},
nodemon: {
dev: {
script: 'server.js',
options: {
nodeArgs: ['--debug'],
ext: 'js,html',
callback: function (nodemon) {
nodemon.on('crash', function (event) {
console.log(event);
});
},
watch: _.union(defaultAssets.server.gruntConfig, defaultAssets.server.views, defaultAssets.server.allJS, defaultAssets.server.config)
}
}
},
forever: {
server1: {
options: {
index: 'server.js',
//logDir: 'logs'
}
}
}
};
角度控制器功能:
$scope.addUser = function(){
var user = {
firstname: $scope.firstname,
lastname: $scope.lastname,
email: $scope.email,
role: $scope.role.selected,
password: $scope.password
};
$http.post('/api/userAdd', user ).then(function successCallback(response) {
$location.path('/users');
}, function errorCallback(response) {
console.log('error addding user');
console.log(response);
});
};
快递路线:
User = require('../models/user.js');
module.exports = function (app) {
app.get('/api/users', function (req, res) {
User.find({}, function (err, users) {
if ( err ) {
res.send({
message : 'error finding users',
success: false
});
} else {
res.json(users);
}
});
});
app.get('/api/users', function (req, res) {
User.find({fields: {}}, function (err, docs) {
res.json(docs);
});
});
app.post('/api/userAdd', function (req, res) {
var user = new User(req.body);
user.save( function( err, user ){
if (err){
console.log('user.save error');
console.log(err);
res.send({
success: false
});
} else {
console.log('user.save success');
res.send({
success: true
});
}
});
});
};
我还使用Chromes Advanced REST扩展进行测试,并且使用此工具节点的任何请求都会立即崩溃。
我是MEAN的新手所以我错过了导致崩溃的事情吗?有任何想法吗?
我将节点从v4.2.6更新到v4.4.5修复了默认的mean.js安装问题。我会从那里建造出来的。
发生这种情况是因为后台运行的所有服务器进程。所以你需要做的就是从终端停止它们。
快速的把戏
通过在终端上运行它来杀死所有人:
pkill -f node
然后重新启动nodemon。
请告诉我它是否有帮助并且请求它。谢谢。
在使用nexmo sms应用程序时遇到了这个挑战。
要修复崩溃,请转到app.js
。如果你有这些代码行。它通常在第一行......
`import { Socket } from 'dgram';`
`const express = require('express');`
`const bodyParser = require('body-parser');`
`const ejs = require('ejs');`
`const Nexmo = require('nexmo');`
`const socketio = require('socket.io');`
只需删除/删除第一行代码import { Socket } from 'dgram';
离开这些......
`const express = require('express');`
`const bodyParser = require('body-parser');`
`const ejs = require('ejs');`
`const Nexmo = require('nexmo');`
`const socketio = require('socket.io');`
并使用“nodemon”重新启动您的应用程序
它有用吗?
您的节点守护程序很可能仍在运行。
ps -eaf | grep node
如果它给出类似的东西
abhinav 15759 15748 0 19:30 pts/2 00:00:00 sh -c nodemon server.js
abhinav 15760 15759 0 19:30 pts/2 00:00:00 node /home/abhinav/Documents/Projects/WebD/Node/smartbrain/smart-brain-api/node_modules/.bin/nodemon server.js
abhinav 15812 15801 0 19:31 pts/2 00:00:00 sh -c nodemon server.js
然后尝试:
killall node