与基本身份验证HTTP请求 [英] HTTP requests with basic authentication

问题描述

我必须从HTTP服务器与 HTTP基本身份验证，下载并解​​析XML文件。现在我做的是这样的：

I have to download and parse XML files from http server with HTTP Basic authentication. Now I'm doing it this way:

URL url = new URL("http://SERVER.WITHOUT.AUTHENTICATION/some.xml");
     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
     DocumentBuilder db = dbf.newDocumentBuilder();
     Document doc = db.parse(new InputSource(url.openStream()));
     doc.getDocumentElement().normalize();

不过，以这种方式我不能得到XML（或我只是简单地不知道的）的服务器文档HTTP认证。

But in that way I can't get xml (or I'm just simply not aware of that ) document from server with http authentication.

我将非常感激，如果你能告诉我要达到我的目标，最好的和最简单的方法。

I will be really grateful if you can show me the best and easiest way to reach my goal.

推荐答案

您可以使用<一个href="http://developer.android.com/reference/java/net/Authenticator.html"><$c$c>Authenticator.例如：

You can use an Authenticator. For example:

Authenticator.setDefault(new Authenticator() {
 @Override
        protected PasswordAuthentication getPasswordAuthentication() {
         return new PasswordAuthentication(
   "user", "password".toCharArray());
        }
});

这将设置默认身份验证和所有的请求将被使用。显然，设置是更复杂的时候，你并不需要凭据的所有请求或多个不同的凭证，也许在不同的线程。

This sets the default Authenticator and will be used in all requests. Obviously the setup is more involved when you don't need credentials for all requests or a number of different credentials, maybe on different threads.

另外，您可以使用<一个href="http://developer.android.com/reference/org/apache/http/impl/client/DefaultHttpClient.html"><$c$c>DefaultHttpClient凡与基本的HTTP认证的GET请求将类似于：

Alternatively you can use a DefaultHttpClient where a GET request with basic HTTP authentication would look similar to:

HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet("http://foo.com/bar");
httpGet.addHeader(BasicScheme.authenticate(
 new UsernamePasswordCredentials("user", "password"),
 "UTF-8", false));

HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity responseEntity = httpResponse.getEntity();

// read the stream returned by responseEntity.getContent()

我建议使用后者，因为它给你更多的控制（如方法，头，超时等），在您的要求。

I recommend using the latter because it gives you a lot more control (e.g. method, headers, timeouts, etc.) over your request.

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