setRequestHeader在使用jQuery的JSONP中不起作用 [英] setRequestHeader does not work in JSONP using jQuery

问题描述

我正在使用jQuery Mobile，jQuery 1.7.2和PhoneGap构建iPhone应用程序

I am building an iPhone app using jQuery Mobile, jQuery 1.7.2, and PhoneGap

尝试使用此代码从ASP.NET RESTful Web服务获取JSONP，这是我需要先进行身份验证并获得令牌，然后再次将其发送回去的问题.

trying to get a JSONP from ASP.NET RESTful web service using this code, problem that I need to authenticate first and get a token, then send it back again.

这是我的功能:

var setToken = function () {
    var serverToken = '';
    $.support.cors = true;
    jQuery('body').ajaxSend(function (evt, xhr) {
        xhr.setRequestHeader("Authorization", "Basic " + $.base64.encode(username + ":" + password));
        xhr.setRequestHeader('X-Accept', 'application/json');
    });
    $.getJSON(url + "?jsoncallback=?", null, function (res) {
        console.log(res);
        serverToken = res.Token;
    });

    $('body').ajaxSend(function (evt, xhr, ajaxOptions) {
        xhr.setRequestHeader('NewToken', serverToken);
    });

};

我得到401(未经授权) 检查标题:

I get 401 (Unauthorized) checked the header:

    Request URL:http://192.168.0.44/call/?jsoncallback=jQuery17206244203052483243499_132336710607307&_=1336742104278
    Request Method:GET
    Status Code:401 Unauthorized

    Request Headers
    Accept:*/*
    Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
    Accept-Encoding:gzip,deflate,sdch
    Accept-Language:en-US,en;q=0.8
    Connection:keep-alive
    Host:192.168.0.44
    Referer:http://localhost/myMobileApp/
    User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.168 Safari/535.19
    Query String Parametersview URL encoded
    jsoncallback:jQuery17206244203052483243499_132336710607307
    _:1336710704278

    Response Headers
    Access-Control-Allow-Origin:*
    Cache-Control:private
    Content-Length:0
    Date:Fri, 11 May 2012 04:31:52 GMT
    Server:Microsoft-IIS/7.5
    WWW-Authenticate:Basic
    X-AspNetMvc-Version:3.0
    X-Powered-By:ASP.NET

setRequestHeader没有添加标题.

setRequestHeader did not add the headers.

我在做什么错了?

请记住，服务器端已经设置为返回JSONP，我认为我们不需要在那里进行更改，但是任何想法都会有所帮助

keep in mind that the server side was set up already to return JSONP, I don't think we need to make changes there, but any thoughts would help

预先感谢

推荐答案

如jfriend00所述，

JSONP请求没有使用实际的ajax调用，您可以在其中控制HTTP请求.

A JSONP request does not use an actual ajax call where you can control the HTTP request.

但是，在您的情况下(您要添加的标头是基本授权)，您可以像通常那样将其注入URL中.因此，要在 http://example.com 上使用用户"user"和密码"pass"进行身份验证，URL将为 http://user:[e-mail]/.

However in your case - the header you're attempting to add being basic Authorization - you can just inject that into the URL, as you'd "usually" do. So to authenticate at http://example.com with the user "user" and password "pass", the URL would be http://user:[e-mail]/.

这篇关于setRequestHeader在使用jQuery的JSONP中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！