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//研究了一下午,终于发现一个问题,写这个代码不是很难的,难的是找一个能代理的IP地址,实际网上的好多代码都可以用滴,只是代理IP和Port有问题而已,废话少说,直接上代码:
1、先说Get的代理(首先提供一个Servlet的Get的http服务)

package com.abin.lee.servlet;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;

/**
 * Created with IntelliJ IDEA.
 * User: abin
 * Date: 13-4-18
 * Time: 上午8:39
 * To change this template use File | Settings | File Templates.
 */
public class HttpClientGetProxyServlet extends HttpServlet {
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    }
    public void doGet(HttpServletRequest request,HttpServletResponse response)throws IOException {
        System.out.println("receive httpGet request");
        String userName=request.getParameter("userName");
        String passWord=request.getParameter("passWord");
        String localIp=request.getLocalAddr();
        String localName=request.getLocalName();
        int localPort=request.getLocalPort();
        int ServerPort=request.getServerPort();
        String leeHeader=request.getHeader("lee");
        System.out.println("userName="+userName+",passWord="+passWord+",localIp="+localIp+",localName="+localName+",localPort="+localPort);
        System.out.println("ServerPort="+ServerPort+",leeHeader="+leeHeader);
        String remoteIp=request.getRemoteAddr();
        String remoteHost=request.getRemoteHost();
        int remotePort=request.getRemotePort();
        System.out.println("remoteIp="+remoteIp+",remoteHost="+remoteHost+",remotePort="+remotePort);

        ServletOutputStream out=response.getOutputStream();
        BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(out));
        writer.write("success");
        writer.flush();
        writer.close();

    }
}




HttpGet代理测试类:

package com.abin.lee.ssh.senior.proxy.httpclient;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.junit.Test;

public class HttpClientGetProxyServletTest {
 public static final String HttpGetProxyUrl="http://localhost:8100/MyThread/HttpClientGetProxyServlet";
 @Test
    public  void testHttpClientPostProxyServlet()throws Exception {
        HttpHost proxy = new HttpHost("10.10.10.10", 1443, "http");
        DefaultHttpClient httpclient = new DefaultHttpClient();
        try {
            httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

            HttpHost target = new HttpHost("localhost", 8100, "http");
            HttpGet request = new HttpGet(HttpGetProxyUrl+"?"+"userName=abin&passWord=varyall");
            request.setHeader("lee", "lee");
            System.out.println("executing request to " + target + " via " + proxy);
            HttpResponse rsp = httpclient.execute(target, request);
            HttpEntity entity = rsp.getEntity();

            System.out.println("----------------------------------------");
            System.out.println(rsp.getStatusLine());
            Header[] headers = rsp.getAllHeaders();
            for (int i = 0; i<headers.length; i++) {
                System.out.println(headers[i]);
            }
            System.out.println("----------------------------------------");

            if (entity != null) {
                System.out.println(EntityUtils.toString(entity));
            }

        } finally {
            // When HttpClient instance is no longer needed,
            // shut down the connection manager to ensure
            // immediate deallocation of all system resources
            httpclient.getConnectionManager().shutdown();
        }
    }
}







//正常测试代码,非代理

package com.abin.lee.ssh.senior.proxy.httpclient;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.junit.Test;

public class HttpClientGetServletTest {
 public static final String HttpGetUrl = "http://localhost:8100/MyThread/HttpClientGetProxyServlet";

 @Test
 public void HttpClientGetServlet() {
  HttpClient httpClient = new DefaultHttpClient();
  StringEntity reqEntity = null;
  HttpGet httpGet = null;
  try {
   HttpGet request = new HttpGet(HttpGetUrl+"?"+"userName=abin&passWord=varyall");
            request.setHeader("lee", "lee");
   // 目标地址
   System.out.println("请求: " + httpGet.getRequestLine());
   // 执行
   HttpResponse response = httpClient.execute(httpGet);
   HttpEntity entity = response.getEntity();
   System.out.println("----------------------------------------");
   System.out.println(response.getStatusLine());
   if (entity != null) {
    System.out.println("Response content length: "
      + entity.getContentLength());
   }
   // 显示结果
   BufferedReader reader = new BufferedReader(new InputStreamReader(
     entity.getContent(), "UTF-8"));
   String line = null;
   while ((line = reader.readLine()) != null) {
    System.out.println(line);
   }
  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   if (!httpGet.isAborted()) {
    httpGet.abort();
   }
   httpClient.getConnectionManager().shutdown();
  }
 }
}




//servlet配置

   <servlet>
             <servlet-name>HttpClientGetProxyServlet</servlet-name>
             <servlet-class>com.abin.lee.servlet.HttpClientGetProxyServlet</servlet-class>
         </servlet>
         <servlet-mapping>
             <servlet-name>HttpClientGetProxyServlet</servlet-name>
             <url-pattern>/HttpClientGetProxyServlet</url-pattern>
         </servlet-mapping>






我这里的IP和端口不一定能用哟,自己找能用的!!代码是100%没问题的,经过生产环境测试的哟!!!
posted on 2013-04-18 17:50 abin 阅读(1413) 评论(0)  编辑  收藏 所属分类: httpClient

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