如何利用HttpURLConnection类来处理HTTP认证？ [英] How to handle HTTP authentication using HttpURLConnection?

问题描述

我在写一个Java客户端的POST，需要一个HTTP服务器的验证。结果
我必须至少支持以下三种身份验证方法：基本，摘要或议付。此外，该POST可能（超过2MB）非常大，所以我需要使用流媒体。
至于被记录为<一个href=\"http://download.oracle.com/javase/1.5.0/docs/api/java/net/HttpURLConnection.html#setFixedLengthStreamingMode%28int%29\">HttpURLConnection

I'm writing a Java client that POSTs to a HTTP server that requires authentication.
I have to support at least the following three authentication methods: Basic, Digest or Negotiate. Additionally the POST may be very large (over 2MB), so I need to use streaming. As is documented for HttpURLConnection

当使能输出流，认证和重定向不能自动处理。读取响应时，如果需要验证或重定向的Htt pretryException将被抛出。

When output streaming is enabled, authentication and redirection cannot be handled automatically. A HttpRetryException will be thrown when reading the response if authentication or redirection are required.

所以，我需要处理验证自己。我搜索，搜查了一遍，换一种方式来聘请，已经codeD，类 - 却发现没办法...

So, I need to handle authentication myself. I searched, and searched again, for a way to employ the, already coded, classes - but found no way...

我可以采摘从<一个所需的源href=\"http://hg.openjdk.java.net/jdk6/jdk6/jdk/file/f7afe7a5e086/src/share/classes/sun/net/www/protocol/http/\">here （因为它们是GPLv2加的Classpath例外）。这是正确的方式？

I could just pluck the needed sources from here (as they are GPLv2 with Classpath exception). Is this the right way?

感谢。

推荐答案

您需要的输出流？在 HttpURLConnection类最绝的支持与验证器类的身份验证，请参阅：的Http认证。

Do you need output streaming? The HttpURLConnection most definitely supports authentication with the Authenticator class, see: Http Authentication.

更新：若验证器不是一个选项，您可以手动执行HTTP通过增加一个额外的头到你的HTTP请求的基本身份验证。请尝试以下code（未经测试）：

Update: In case the Authenticator is not an option, you can manually do HTTP basic authentication by adding an extra header to your HTTP request. Try the following code (untested):

String userPassword = username + ":" + password;
String encoding = new sun.misc.BASE64Encoder().encode(userPassword.getBytes());
URLConnection uc = url.openConnection();
uc.setRequestProperty("Authorization", "Basic " + encoding);
uc.connect();

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