Question

我想用Java获取SSL页面。问题是，我必须对http代理进行身份验证。

所以我想要一个简单的方法来获取这个页面。我尝试了Apache Commons httpclient，但这对我的问题来说太多了。

我尝试了这段代码，但它不包含身份验证操作：

import java.io.*;
import java.net.*;

public class ProxyTest {

  public static void main(String[] args) throws ClientProtocolException, IOException {

    URL url = new URL("https://ssl.site");
    Socket s = new Socket("proxy.address", 8080);
    Proxy proxy = new Proxy(Proxy.Type.HTTP, s.getLocalSocketAddress());

    URLConnection connection = url.openConnection(proxy);
    InputStream inputStream = connection.getInputStream();
    BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
    String tmpLine = "";

    while ((tmpLine = br.readLine()) != null) {
      System.out.println(tmpLine);
    }

  }
}

任何人都可以提供一些如何以简单的方式实现它的信息吗？

提前致谢

Answer 1

在打开连接之前，您需要设置java.net.Authenticator：

...

public static void main(String[] args) throws Exception {
    // Set the username and password in a manner which doesn't leave it visible.
    final String username = Console.readLine("[%s]", "Proxy Username");
    final char[] password = Console.readPassword("[%s"], "Proxy Password:");

    // Use a anonymous class for our authenticator for brevity
    Authenticator.setDefault(new Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
    });

    URL url = new URL("https://ssl.site");
    ...
}

要在完成后删除身份验证器，请调用以下代码：

Authenticator.setDefault(null);

Java SE 6中的身份验证器支持HTTP Basic，HTTP Digest 和 NTLM。有关详细信息，请参阅sun.com上的Http Authentication文档

Answer 2

org.apache.commons.httpclient.HttpClient是你的朋友，

来自http://hc.apache.org/httpclient-3.x/sslguide.html

的示例代码

  HttpClient httpclient = new HttpClient();
  httpclient.getHostConfiguration().setProxy("myproxyhost", 8080);
  httpclient.getState().setProxyCredentials("my-proxy-realm", " myproxyhost",
  new UsernamePasswordCredentials("my-proxy-username", "my-proxy-password"));
  GetMethod httpget = new GetMethod("https://www.verisign.com/");
  try { 
    httpclient.executeMethod(httpget);
    System.out.println(httpget.getStatusLine());
  } finally {
    httpget.releaseConnection();
  }

Answer 3

使用apache commons-http-client 4：你会发现很多例子@ http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/examples/org/apache/http/examples/client/

，尤其是http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/examples/org/apache/http/examples/client/ClientProxyAuthentication.java

通过Java中的代理获取SSL页面的最简单方法

3 个答案: