在 Java 中通过代理获取 SSL 页面的最简单方法

发布于 2024-07-14 01:27:37 字数 882 浏览 7 评论 0原文

我想用 Java 获取 SSL 页面。问题是，我必须针对 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，但对于我的问题来说它的开销太大了。

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

原文

I would like to fetch a SSL page in Java. The problem is, that I have to authenticate against a http proxy.

So I want a simple way to fetch this page.
I tried the Apache Commons httpclient, but it's too much overhead for my problem.

I tried this piece of code, but it does not contain an authentication action:

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);
    }

  }
}

Can anyone provide some information how to implement it on an easy way?

Thanks in advance

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轻许诺言 2024-07-21 01:27:37

您需要设置 java.net.Authenticator 在打开连接之前：

...

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Http 身份验证 sun.com 上的文档

You need to set a java.net.Authenticator before you open your connection:

...

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");
    ...
}

To remove your authenticator after you're finished, call the following code:

Authenticator.setDefault(null);

The authenticator in Java SE 6 supports HTTP Basic, HTTP Digest and NTLM. For more information, see the Http Authentication documentation at sun.com

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爱*していゐ 2024-07-21 01:27:37

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

示例代码来自 http: //hc.apache.org/httpclient-3.x/sslguide.html

  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();
  }

org.apache.commons.httpclient.HttpClient is your friend,

Sample code from http://hc.apache.org/httpclient-3.x/sslguide.html

  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();
  }

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