我有点卡住，请帮助我。我正在尝试从HTML表单保存为JSON文件。我没有得到如何将数据从angularjs控制器移动到nodejs。如果我将数据从控制器发送到Nodejs，我可以使用 fs.write 方法将表单数据保存为json。我在这里粘贴代码。 我的HTML表单文件
<div ng-controller="Ctrl" class="row">
<form>
<p>
<label for="Name"> Name :</label>
<input id="Name" type="text" name="Name" ng-model="store.name"/><br /><br />
</p>
<p>
<label for="age"> Age :</label>
<input id="age" type="text" name="age" ng-model="store.age"/><br /><br />
</p><p>
<label for="sex"> Sex :</label>
<input id="sex" type="text" name="sex" ng-model="store.sex"/><br /><br />
</p>
<textarea>{{store | json}}</textarea><br />
<input type="submit" class="btn btn-primary" ng-click="send()">
这是我的app.js文件
var app = angular.module('app',['ui.router','ui.bootstrap','ngAnimate'])
.controller('Ctrl',function($scope,$http){
$scope.data = {}
$scope.response = {}
$scope.send = function(){
var receiveddata = $scope.store;
console.log(JSON.stringify(receiveddata));})
我能够在控制台上完全打印（receiveddata）成功。输出显示正常。
这是我的server.js文件。
var express = require("express");
var http = require('http');
var path = require('path');
var bodyParser = require('body-parser');
var fs = require('fs');
var formidable = require("formidable");
var util = require('util');
var app = express();
app.set('views', __dirname + '/views');
app.set('view engine' , 'ejs');
app.use(bodyParser.urlencoded());
app.use(express.static(path.join(__dirname,'public')));
app.get('/',function(req,res){
res.render('index',{ title: 'StoreAsJson' });
});
var server = app.listen(8000,function(){
var port = server.address().port;
console.log("server is listening on port %s",port);
});
任何人请帮助我解决这个问题。我已经从this链接写入了JSON文件代码。我
答案 0 :(得分：3)
我将尝试使用 MEAN 堆栈显示示例。
<强> App.js：
(function(){
'use strict';
angular.module('app', [ 'ui.router','ui.bootstrap','ngAnimate' ]);
})();
<强> Controller.js：
angular
.module('app')
.controller('Ctrl', Ctrl);
function Ctrl($scope, $http) {
$scope.send = function(){
//Saving data into a single var -> JSON format
var userData = {
name : store.name,
age : store.age,
sex : store.sex
};
// Calls Back-end api to save the new user
$http.post('/users', userData)
.success(function(data) {
console.log('Successfully posted '+ data);
})
.error(function(data) {
console.log('Error while posting: ' + data);
});
}
}
<强> server.js：
// Dependencies
var express = require('express');
var mongoose = require('mongoose');
var port = process.env.PORT || xxxx;
var bodyParser = require('body-parser');
var app = express();
// Sets the connection to MongoDB
mongoose.connect("mongodb://localhost/UserApp");
. . . . . .
// Routes
require('./app/routes.js')(app);
. . . . . .
<强> Routes.js：
我在这里使用Mongoose和MongoDB来存储数据。发布到/users。如果您转到localhost:xxxx/users，您应该可以使用getUsers方法查看所有用户。
/** Requiring Factories **/
var UserFactory = require('./factories/user.factory.js');
// Opens App Routes
module.exports = function(app) {
/** Posting a new user**/
app.post('/users', function(req, res) {
//Calling postUser method from factory
UserFactory.postUser(req).then( function (user) {
console.log('Successfully posted '+ JSON.stringify(user));
res.json(user);
});
});
/** Getting all the Users**/
app.get('/users', function(req, res) {
UserFactory.getUsers().then( function (users) {
return res.json(users);
}, function (error) {
res.json(error);
});
});
}
<强> user.factory.js：
//Requiring Mongoose user schema
var Users = require('../models/user-model.js');
//Exposing getUsers and postUser to external calls
exports.getUsers = getUsers;
exports.postUser = postUser;
/** Gets all the users stored in the DB **/
function getUsers() {
return new Promise( function (resolve, reject) {
//Opens Mongoose Query
var query = Users.find({});
query.exec(function(err, users) {
if (err){
return reject(err);
}
// If no errors are found, it responds with a JSON of all users
return resolve(users);
});
}, function (error){
return reject(error);
});
}
/** Posting a new users**/
function postUser(req) {
return new Promise( function (resolve, reject) {
// Creates a new user based on the Mongoose schema and the post body
var newUser = new Users(req.body);
// New Points is saved in the db.
newUser.save(function(err) {
if (err){
reject(err);
}
// If no errors are found, it responds with a JSON of the new user
resolve(req.body);
});
}, function (error){
return reject(error);
});
}
用户-model.js：
//Pulls Mongoose dependency for creating schemas
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
// Creates a User Schema, it will automatically set an _id to a user
var users= new Schema({
name : {type : String},
age : Number,
sex : {type : String}
});
//Saves schema to DB
module.exports = mongoose.model('users', users);
如果你看一下MongoDB和Mongoose的工作方式，你应该轻松搞定。
你提出了一个非常广泛的问题，所以这不是一个准确的答案。
<强> PLUS
Ctrl this <强> HTML：
send() -> myCtrl.send()
store -> myCtrl.store.name, myCtrl.store.age, myCtrl.store.sex
<强>控制器：
angular
.module('app')
.controller('myCtrl', myCtrl);
function myCtrl($http) {
var vm = this;
vm.send = function(){
//Saving data into a single var -> JSON format
var userData = {
name : vm.store.name,
age : vm.store.age,
sex : vm.store.sex
};
// Calls Back-end api to save the new user
$http.post('/users', userData)
.success(function(data) {
console.log('Successfully posted '+ data);
})
.error(function(data) {
console.log('Error while posting: ' + data);
});
}
}
我希望我一直很有帮助。