angularjs向后台傳參，后台收不到數據

angularjs中封裝了一個$http服務，用來請求遠程資源

 

參見：HTTP API

 

其中封裝過的$http.post和$http.get使用起來比較方便

 

后台是php，用$_POST['name']接收，一直接收不到代碼，甚是奇怪

 

查閱文章所知，原來angular的$http服務和jquery的不一樣

原文：

By default, jQuery transmits data using Content-Type: x-www-form-urlencoded and the familiar foo=bar&baz=moe serialization. AngularJS, however, transmits data using Content-Type: application/json and { "foo": "bar", "baz": "moe" } JSON serialization, which unfortunately some Web server languages—notably PHP—do not unserialize natively.

大意：

jquery傳輸數據用的Content-Type是：x-www-form-urlencoded，類似url傳參，而angularJS的Content-Type是 application/json，是使用JSON序列化傳參，而PHP正好默認不會接收后者。

根據老外的提議，改服務端代碼當然也可以，但是還是$_POST用的習慣，所以就將angular的傳參方式改為jquery的方式，下面是代碼，放在主module里就可以了

// Your app's root module...
angular.module('MyModule', [], function($httpProvider) {
  // Use x-www-form-urlencoded Content-Type
  $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=utf-8';

  /**
   * The workhorse; converts an object to x-www-form-urlencoded serialization.
   * @param {Object} obj
   * @return {String}
   */ 
  var param = function(obj) {
    var query = '', name, value, fullSubName, subName, subValue, innerObj, i;
      
    for(name in obj) {
      value = obj[name];
        
      if(value instanceof Array) {
        for(i=0; i<value.length; ++i) {
          subValue = value[i];
          fullSubName = name + '[' + i + ']';
          innerObj = {};
          innerObj[fullSubName] = subValue;
          query += param(innerObj) + '&';
        }
      }
      else if(value instanceof Object) {
        for(subName in value) {
          subValue = value[subName];
          fullSubName = name + '[' + subName + ']';
          innerObj = {};
          innerObj[fullSubName] = subValue;
          query += param(innerObj) + '&';
        }
      }
      else if(value !== undefined && value !== null)
        query += encodeURIComponent(name) + '=' + encodeURIComponent(value) + '&';
    }
      
    return query.length ? query.substr(0, query.length - 1) : query;
  };

  // Override $http service's default transformRequest
  $httpProvider.defaults.transformRequest = [function(data) {
    return angular.isObject(data) && String(data) !== '[object File]' ? param(data) : data;
  }];
});

Done!

 

原文鏈接：Link