AngularJS将请求发布到服务器

问题描述：

我如何收集从客户端发送的信息?在这种情况下，ID?

How would i gather that info im sending from the client? in this case, the id?

如何获取ID?

我确实使用了客户端请求:

I do use client sided request:

    return $http.post('/api/kill', {id:4}, {
              headers: {}
            })

当我在服务器端检查req.body console.log(Req.body)时，我得到了:

and when i check server sided for req.body console.log(Req.body) i do get:

 { '{"id":4}': '' }

req.body.id返回:

req.body.id returns:

undefined

如何获取ID为4?

主要代码位于 https://github.com/meanjs/mean

服务器端代码:

app.post('/api/kill', function (req, res) {


        console.log(req.body); // { '{"id":4}': '' }
        console.log(req.body.id); // undefined

    });

答

您需要将该id属性分配给类似

You need to assign that id property to an object like

item = { id : 4 }

假设您有一个text-box，用户希望通过在其中插入名称并单击提交来保存新项目.

Lets suppose you have a text-box and the user wants to save a new item by inserting its name in it and click on submit.

让我们还假设您正在使用MongoDB项集合，为简单起见，这些项仅具有id字段.

Lets also suppose you are using a MongoDB collection of items, which have only id field for simplicity.

这是使它变得容易的方法.

Here's what you should do to get it going easy.

确保要导入bodyParser

var bodyParser = require('body-parser');

HTML-使用自定义ID保存新项目

<div class="form-group">
  <label for="id">ID</label>
    <input type="text" class="form-control" id="id" ng-model="ItemController.formData.id">
</div>

<button type="submit" ng-click="ItemController.createItem()" >Submit</button>

角度部分-ItemController.js

'use strict';

angular
    .module('myApp')
    .controller('ItemController', ItemController);

function ItemController($http) {

  var vm = this;

  /** Creates a New Marker on submit **/
  vm.createItem = function() {

          // Grabs all of the text box fields
          var itemData = {
              id        : vm.formData.id
          };

          // Saves item data to the db
          $http.post('/api/kill', itemData)
              .success(function(response) {
                if(response.err){
                  console.log('Error: ' + response.err);
                } else {
                  console.log('Saved '+response);
                }
              });
   };
}

路由处理-route.js

var ItemFactory   = require('./factories/item.factory.js');

// Opens App Routes
module.exports = function(app) {

    /** Posting a new Item **/
    app.post('/api/kill', function(req, res) {
        ItemFactory.postItem(req).then( function (item) {
          return res.json(item);
        });
    });

};

发布到MongoDB-item.factory.js

var Item  = require('../models/item-model');
exports.postItem = postItem;

function postItem(item) {
    return new Promise( function (resolve, reject) {  
        var newItem = new Item(item.body);
        newItem.save(function(err) {
            if (err){
                return reject({err : 'Error while saving item'});
            }
            // If no errors are found, it responds with a JSON of the new item
            return resolve(item.body);
        });
    });
}

如果在传递该项目的不同代码段上尝试console.log()，则可以使用id property正确看到一个对象.

If you try console.log() on the different pieces of code where I passed the item, you can properly see an object with id property.

希望我能对您有所帮助.

I hope I've been helpful.

AngularJS将请求发布到服务器

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