angular學習筆記(二十四)-$http(2)-設定http請求頭

詩&遠方發表於2014-07-30
Angular筆記HTTP

1. angular預設的請求頭:

其中,Accept 和 X-Requested-With是$http自帶的預設配置

Accept:application/json,text/plain         接受的請求的資料型別: json 文字

X-Requested-With: XMLHttpRequest    請求是通過XMLHttpRequest物件傳送的 

 

2. 修改預設請求頭:

   (1) 全域性修改(整個模組)

        使用$httpProvider依賴

        var myApp = angular.module('MyApp',[]);

        myApp.config(function($httpProvider){

             console.log($httpProvider.defaults.headers.common)
             
             //修改/操作$httpProvider.defaults.headers.common物件的屬性以改變$http的預設請求頭配置


        })

        *注意,只能操作 $httpProvider.defaults.headers.common 才有效,直接操作$httpProvider.defaults.headers是無效的.

   (2)  特定請求修改(某個http請求)

         直接在$http(config)的config引數中的headers項進行配置

 

demo: 

html:

<!DOCTYPE html>
<html ng-app = 'HttpGet'>
<head>
  <title>18.2 $http(1)</title>
  <meta charset="utf-8">
  <script src="angular.js"></script>
  <script src="script.js"></script>
</head>
<body>
<div ng-controller = "dataController">
  <span>{{data}}</span>
</div>
</body>
</html>

 

nodejs:

var express = require('express');
var app = express();
app.use(express.static(__dirname+''));

var data = 'angularjs中的$http.get';

app.get('/api/user',function(req,res){
    res.send(data)
});

app.listen(3000);

(1).通過$httpProvider對整個模組的$http請求頭進行修改:

var httpGet = angular.module('HttpGet',[]);
httpGet.config(function($httpProvider){
    console.log($httpProvider.defaults.headers)
    //刪除後請求頭裡不再有 X-Requested-With 屬性
    delete $httpProvider.defaults.headers.common['X-Requested-With'];
    //為請求頭新增Authorization屬性為'code_bunny'  
    $httpProvider.defaults.headers.common['Authorization'] = 'code_bunny';
});
httpGet.factory('getData',function($http,$q){
    return function(){
        var defer = $q.defer();
        $http({
            method:'get',
            url:'/api/user'
        }).success(function(data,status,headers,config){
            defer.resolve(data);
        }).error(function(data,status,headers,config){
            defer.reject(data)
        });
        return defer.promise
    }
});
httpGet.controller('dataController',function($scope,getData){
    $scope.data = getData()
});

(2).通過$http(config)的config引數對該請求的請求頭進行配置:

var httpGet = angular.module('HttpGet',[]);
httpGet.factory('getData',function($http,$q){
    return function(){
        var defer = $q.defer();
        $http({
            method:'get',
            url:'/api/user',
            headers: {'Authorization':'code_bunny'}  //請求頭裡會新增Authorization屬性為'code_bunny'
        }).success(function(data,status,headers,config){
            defer.resolve(data);
        }).error(function(data,status,headers,config){
            defer.reject(data)
        });
        return defer.promise
    }
});
httpGet.controller('dataController',function($scope,getData){
    $scope.data = getData()
});

 

完整程式碼地址: https://github.com/OOP-Code-Bunny/angular/tree/master/OREILLY/18.3%20%24http(1)

*注: 書上說到可以通過$httpProvider.defaults.headers.get['DNT']='1',來設定不追蹤使用者瀏覽資訊,但實際嘗試後發現是報錯的. 

  

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