[英]AngularJS: Unable to receive data from $http.post()
我能夠:
問題: -無法通過Service訪問Server.js文件中的數據,因此無法將數據插入MySQL表。
我的AngularJS服務使用內置的angularJS $ http服務發布數據。
我剛開始學習AngularJS,就遇到了這個問題。
為了方便起見,我已在適當的地方發表了評論。
HTML表單代碼:
<form class="form-horizontal" ng-submit="submit()">
<label class="control-label col-sm-2" for="id">ID:</label>
<input type="text" class="form-control" id="id" placeholder="Enter ID" ng-model="text1">
<label class="control-label col-sm-2" for="title">Title:</label>
<input type="text" class="form-control" id="title" placeholder="Enter Title" ng-model="text2">
控制器代碼:
(function() {
var newArticleController = function ($scope, customersService, appSettings) {
$scope.list = []; // will pass this list
//init function: customerService is a Service
function init() {
customersService.postArticle($scope.list)
.success(function() {
console.log('post promise success!') //This is not printing!!!!!
})
.error(function(data, status, headers, config) {
})
}
//on submit: init() is called
$scope.submit = function() {
if ($scope.text1 && $scope.text2) {
$scope.list.push(this.text1)
$scope.list.push(this.text2)
init()
} } };
angular.module('customersApp')
.controller('newArticleController', newArticleController);
}());
AngularJS 服務代碼:
(function(){
var customersService = function($http) {
this.postArticle = function(dataRcvd) {
console.log('service called');
console.log(dataRcvd); //This is printing
return $http.post('/newArticle', JSON.stringify(dataRcvd))
}
}
angular.module('customersApp').service('customersService', customersService);
}())
Server.js (問題在此部分)
var express = require('express'),
var app = express();
var knex = require('knex')({
//...
});
app.use(express.static(__dirname + '/'));
app.post('/newArticle', function(req, res) {
console.log('reached here: server.js') //This is printing
---> **//HOW TO ACCESS 'dataRcvd' here ???**
})
我是新手,所以如果需要任何修改,請幫幫我。
嘗試如下更新代碼。
步驟1-首先添加“ body-parser”。
var bodyParser = require('body-parser');
第2步,並將中間件作為
app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
步驟3-嘗試按以下方式訪問數據。
app.post('/newArticle', function(req, res) {
console.log('reached here: server.js') //This is printing
---> **//HOW TO ACCESS 'dataRcvd' here ???**
console.log(req.body);
res.end();
})
因此,要兌現承諾,請按如下所示更新您的服務代碼。
angular.module('customersApp').service('customersService', ['$http', '$q', function ($http, $q) {
this.postArticle = function(dataRcvd) {
var deferred = $q.defer();
console.log('service called');
console.log(dataRcvd); //This is printing
$http({
method: 'POST',
url: '/newArticle',
headers: {'Content-Type': 'application/json'},
data: JSON.stringify(dataRcvd)
}).success(function (data) {
deferred.resolve(data);
}).error(function (msg) {
deferred.reject(msg);
});
return deferred.promise;
}
}]);
將正文解析器添加到您的server.js
var express = require('express'),
var app = express();
**var bodyParser = require('body-parser');
app.use(bodyParser.json()); // for parsing application/json**
那你可以用
req.body
訪問數據。
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