Question

我有一个包含对象数组的json文件，我想知道$ http post方法将另一个对象添加到这个json（包含对象数组）。假设同一文件夹中的所有3个文件。这必须在angularjs中完成。请帮助＆amp;如有任何其他细节，请询问。干杯！

- contact_details.json ---

[{
  "name": "Darshil Patira",
  "number": "9829038347",
  "image": "images/dawn_scenic.jpg",
  "email": "darshilpatira@gmail.com"
}, {
  "name": "Sujith V",
  "number": "9756423129",
  "image": "images/blue_ocean.jpg",
  "email": "sujithv@gmail.com"
}]

--- --- addcontact.html

<div class="form-style">
    <div class="form-style-heading">
        Provide your information
    </div>
    <form name="reviewForm" action="" ng-submit="addcontact()" ng-controller="addContactController">
        <label for="field1">
            <span>Name<span class="require">*</span>
            </span>
            <input type="text" class="input-field" name="field1" ng-model="name" required />
        </label>
        <label for="field2">
            <span>Email<span class="require">*</span>
            </span>
            <input type="text" class="input-field" name="field2" ng-model="email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$" required />
        </label>
        <label for="field3">
            <span>Telephone<span class="require">*</span>
            </span>
            <input type="text" class="tel-number-field" name="field3" ng-model="number" pattern=".{5,10}" required />
        </label>
        <input type="file" name="pic" accept="image/jpg">
        <label>
            <span>&nbsp;</span>
            <input type="submit" value="Submit" />
        </label>
    </form>
</div>

--- app.js（控制器）---

var app = angular.module("mainApp", ['ngRoute']);

app.controller('addContactController',function($scope,$http){
    var dataobj = { 'name':$scope.name, 'email': $scope.email, 'number':$scope.number };
    $http.post('contacts_details.json',dataobj);
});

Answer 1

Angular不知道如何写入文件系统。由服务器决定将HTTP请求解释为数据库/持久性调用。

示例：

.controller('someCtrl', function($http){
 var baseUrl = ... ;

 $scope.doPost = function(){
  $http.post(baseUrl + '/resource', {param1: 1, param2: 2});
 }
});

//In server (NodeJS?)
var fs = require('fs'); //File system module
server.post('/resource', function(request, response){ //Every HTTP post to baseUrl/resource will end up here
 console.info('Updated myJSON.json');
 fs.writeFile('myJSON.json', request.body, function(err){
  if(err) {
   console.error(err);
   return response.status(500).json(err); //Let the client know something went wrong
  }
  console.info('Updated myJSON.json');
  response.send(); //Let the client know everything's good.
 });
});

Answer 2

如果您只需要为开发服务.json，您可以尝试json-server。这是一个快速简便的选择 - 非常适合开发，您无法访问服务器但仍需要/可以通过api使用json数据。

如何使用angularjs中的$ http post方法将数据写入json文件？

2 个答案: