关于“使用java模拟登陆百度”遇到的问题。

tuchangle 2009-12-06 09:35:20
在网上看到一个篇“使用java模拟登陆百度”试了一下，打开IE进入百度后还是没有登陆的状态？请问如何实现程序运行后，打开IE进入百度就已经登陆？
网址为：http://hi.baidu.com/murphylau/blog/item/68fc5b58b732f1d69c820492.html
代码为：




/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

package mylogin;



/**

 *

 * @author TralaTu

 */

import java.net.URL;

import java.net.HttpURLConnection;

import java.io.InputStream;

import java.io.BufferedInputStream;

import java.io.Reader;

import java.io.InputStreamReader;

import java.io.BufferedReader;



public class LoginBaidu {



    /**

     * @param args the command line arguments

     */

    public static void LoginBaidu() {

        URL url = null;

        HttpURLConnection httpurlconnection = null;

        try {

            url = new URL("http://www.baidu.com/");

            httpurlconnection = (HttpURLConnection) url.openConnection();



            httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");

            httpurlconnection.setRequestProperty("Host", "www.baidu.com");

            httpurlconnection.connect();

            String cookie0 = httpurlconnection.getHeaderField("Set-Cookie");

            httpurlconnection.disconnect();

            //String   cookie0 = "BAIDUID=8AF5EA24DBF1275CE15C02B5FF65A265:FG=1;BDSTAT = 61a1d3a7118ce8a7ce1b9d16fdfaaf51f3deb48f8e5494eef01f3a292cf5b899;BDUSE = deleted";

            url = new URL("http://passport.baidu.com/?login");

            String strPost = "username=tuchangle&password=19870221&mem_pass=on";

            httpurlconnection = (HttpURLConnection) url.openConnection();

            HttpURLConnection.setFollowRedirects(true);

            httpurlconnection.setInstanceFollowRedirects(true);

            httpurlconnection.setDoOutput(true); // 需要向服务器写数据

            httpurlconnection.setDoInput(true); //

            httpurlconnection.setUseCaches(false); // 获得服务器最新的信息

            httpurlconnection.setAllowUserInteraction(false);

            httpurlconnection.setRequestMethod("POST");

            httpurlconnection.addRequestProperty("Accept", "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */*");

            httpurlconnection.setRequestProperty("Referer", "http://passport.baidu.com/?login&tpl=mn&u=http%3A//www.baidu.com/");

            httpurlconnection.setRequestProperty("Accept-Language", "zh-cn");

            httpurlconnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

            httpurlconnection.setRequestProperty("Accept-Encoding", "gzip, deflate");

            httpurlconnection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Foxy/1; .NET CLR 2.0.50727;MEGAUPLOAD 1.0)");

            httpurlconnection.setRequestProperty("Host", "passport.baidu.com");

            httpurlconnection.setRequestProperty("Content-Length", strPost.length() + "");

            httpurlconnection.setRequestProperty("Connection", "Keep-Alive");

            httpurlconnection.setRequestProperty("Cache-Control", "no-cache");

            httpurlconnection.setRequestProperty("Cookie", cookie0);

            httpurlconnection.getOutputStream().write(strPost.getBytes());

            httpurlconnection.getOutputStream().flush();

            httpurlconnection.getOutputStream().close();

            httpurlconnection.connect();

            int code = httpurlconnection.getResponseCode();

            System.out.println("code　 " + code);

            String cookie1 = httpurlconnection.getHeaderField("Set-Cookie");

            System.out.print(cookie0 + "; " + cookie1);

            httpurlconnection.disconnect();

            url = new URL("http://www.baidu.com/");

            httpurlconnection = (HttpURLConnection) url.openConnection();

            httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");

            httpurlconnection.setRequestProperty("Host", "www.baidu.com");

            httpurlconnection.setRequestProperty("Cookie", cookie0 + "; " + cookie1);

            httpurlconnection.connect();

            InputStream urlStream = httpurlconnection.getInputStream();

            BufferedInputStream buff = new BufferedInputStream(urlStream);

            Reader r = new InputStreamReader(buff, "gbk");

            BufferedReader br = new BufferedReader(r);

            StringBuffer strHtml = new StringBuffer("");

            String strLine = null;

            while ((strLine = br.readLine()) != null) {

                strHtml.append(strLine + "rn");

            }

            System.out.print(strHtml.toString());

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            if (httpurlconnection != null) {

            }

            httpurlconnection.disconnect();

        }

    }



    public static void main(String[] args) {

         LoginBaidu.LoginBaidu();

    }

}
...全文
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whut0802 2009-12-07
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帮顶，学习
苍蝇①号 2009-12-07
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[Quote=引用 5 楼 tuchangle 的回复:]
找的原创作者了：http://blog.csdn.net/dongle2001/archive/2008/06/17/2557850.aspx
Java codepublicstaticvoid loginBaidu() {

URL url=null;

HttpURLConnection httpurlconnection=null;try {

url=new URL("http://www.baidu.com/");

httpurlconnection= (HttpURLConnection) url.openConnection();

httpurlconnection.setRequestProperty("User-Agent","Internet Explorer");

httpurlconnection.setRequestProperty("Host","www.baidu.com");

httpurlconnection.connect();

String cookie0= httpurlconnection.getHeaderField("Set-Cookie");

httpurlconnection.disconnect();

url=new URL("http://passport.baidu.com/?login");

String strPost="username=xxxxxx&password=xxxxxx&mem_pass=on";

httpurlconnection= (HttpURLConnection) url.openConnection();

HttpURLConnection.setFollowRedirects(true);

httpurlconnection.setInstanceFollowRedirects(true);

httpurlconnection.setDoOutput(true);// 需要向服务器写数据
httpurlconnection.setDoInput(true);//
httpurlconnection.setUseCaches(false);// 获得服务器最新的信息
httpurlconnection.setAllowUserInteraction(false);

httpurlconnection.setRequestMethod("POST");

httpurlconnection

.addRequestProperty("Accept","image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */*");

httpurlconnection

.setRequestProperty("Referer","http://passport.baidu.com/?login&tpl=mn&u=http%3A//www.baidu.com/");

httpurlconnection.setRequestProperty("Accept-Language","zh-cn");

httpurlconnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

httpurlconnection.setRequestProperty("Accept-Encoding","gzip, deflate");

httpurlconnection

.setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Foxy/1; .NET CLR 2.0.50727; MEGAUPLOAD 1.0)");

httpurlconnection.setRequestProperty("Host","passport.baidu.com");

httpurlconnection.setRequestProperty("Content-Length", strPost

.length()+"");

httpurlconnection.setRequestProperty("Connection","Keep-Alive");

httpurlconnection.setRequestProperty("Cache-Control","no-cache");

httpurlconnection.setRequestProperty("Cookie", cookie0);



httpurlconnection.getOutputStream().write(strPost.getBytes());

httpurlconnection.getOutputStream().flush();

httpurlconnection.getOutputStream().close();

httpurlconnection.connect();int code= httpurlconnection.getResponseCode();

System.out.println("code"+ code);



String cookie1= httpurlconnection.getHeaderField("Set-Cookie");

System.out.print(cookie0+";"+ cookie1);

httpurlconnection.disconnect();



url=new URL("http://www.baidu.com/");

httpurlconnection= (HttpURLConnection) url.openConnection();

httpurlconnection.setRequestProperty("User-Agent","Internet Explorer");

httpurlconnection.setRequestProperty("Host","www.baidu.com");

httpurlconnection.setRequestProperty("Cookie", cookie0+";"+ cookie1);

httpurlconnection.connect();

InputStream urlStream= httpurlconnection.getInputStream();

BufferedInputStream buff=new BufferedInputStream(urlStream);

Reader r=new InputStreamReader(buff,"gbk");

BufferedReader br=new BufferedReader(r);

StringBuffer strHtml=new StringBuffer("");

String strLine=null;while ((strLine= br.readLine())!=null) {

strHtml.append(strLine+"\r\n");

}

System.out.print(strHtml.toString());

}catch (Exception e) {

e.printStackTrace();

}finally {if (httpurlconnection!=null)

httpurlconnection.disconnect();

}

}

不知道这里cookie的作用是什么？谁知道吗?
[/Quote]
做过爬虫的人就知道了，这是为了抓取需要登陆后才能显示的页面是用的
叶涛网站推广优化 2009-12-07
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tuchangle 加油
magicelfzz 2009-12-07
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菜鸟学习~~~~~~~~~~~
tuchangle 2009-12-07
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[Quote=引用 8 楼 cangyingzhijia 的回复:]
引用 5 楼 tuchangle 的回复:
找的原创作者了：http://blog.csdn.net/dongle2001/archive/2008/06/17/2557850.aspx
Java codepublicstaticvoid loginBaidu() {

        URL url=null;

        HttpURLConnection httpurlconnection=null;try {

            url=new URL("http://www.baidu.com/");           

            httpurlconnection= (HttpURLConnection) url.openConnection();

            httpurlconnection.setRequestProperty("User-Agent","Internet Explorer");

            httpurlconnection.setRequestProperty("Host","www.baidu.com");

            httpurlconnection.connect();

            String cookie0= httpurlconnection.getHeaderField("Set-Cookie");

            httpurlconnection.disconnect();

            url=new URL("http://passport.baidu.com/?login");

            String strPost="username=xxxxxx&password=xxxxxx&mem_pass=on";

            httpurlconnection= (HttpURLConnection) url.openConnection();

            HttpURLConnection.setFollowRedirects(true);

            httpurlconnection.setInstanceFollowRedirects(true);

            httpurlconnection.setDoOutput(true);// 需要向服务器写数据
            httpurlconnection.setDoInput(true);//
            httpurlconnection.setUseCaches(false);// 获得服务器最新的信息
            httpurlconnection.setAllowUserInteraction(false);

            httpurlconnection.setRequestMethod("POST");

            httpurlconnection

                    .addRequestProperty("Accept","image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */*");

            httpurlconnection

                    .setRequestProperty("Referer","http://passport.baidu.com/?login&tpl=mn&u=http%3A//www.baidu.com/");

            httpurlconnection.setRequestProperty("Accept-Language","zh-cn");

            httpurlconnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

            httpurlconnection.setRequestProperty("Accept-Encoding","gzip, deflate");

            httpurlconnection

                    .setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Foxy/1; .NET CLR 2.0.50727; MEGAUPLOAD 1.0)");

            httpurlconnection.setRequestProperty("Host","passport.baidu.com");

            httpurlconnection.setRequestProperty("Content-Length", strPost

                    .length()+"");

            httpurlconnection.setRequestProperty("Connection","Keep-Alive");

            httpurlconnection.setRequestProperty("Cache-Control","no-cache");

            httpurlconnection.setRequestProperty("Cookie", cookie0);


            httpurlconnection.getOutputStream().write(strPost.getBytes());

            httpurlconnection.getOutputStream().flush();

            httpurlconnection.getOutputStream().close();

            httpurlconnection.connect();int code= httpurlconnection.getResponseCode();

            System.out.println("code"+ code);


            String cookie1= httpurlconnection.getHeaderField("Set-Cookie");

            System.out.print(cookie0+";"+ cookie1);

            httpurlconnection.disconnect();

           

            url=new URL("http://www.baidu.com/");           

            httpurlconnection= (HttpURLConnection) url.openConnection();

            httpurlconnection.setRequestProperty("User-Agent","Internet Explorer");

            httpurlconnection.setRequestProperty("Host","www.baidu.com");

            httpurlconnection.setRequestProperty("Cookie", cookie0+";"+ cookie1);

            httpurlconnection.connect();

            InputStream urlStream= httpurlconnection.getInputStream();

            BufferedInputStream buff=new BufferedInputStream(urlStream);

                    Reader r=new InputStreamReader(buff,"gbk");

                    BufferedReader br=new BufferedReader(r);

                  StringBuffer strHtml=new StringBuffer("");

                    String  strLine=null;while ((strLine= br.readLine())!=null) {

                        strHtml.append(strLine+"\r\n");

                    }

                    System.out.print(strHtml.toString());

        }catch (Exception e) {

            e.printStackTrace();

        }finally {if (httpurlconnection!=null)

                httpurlconnection.disconnect();

        }

    }

不知道这里cookie的作用是什么？谁知道吗?

做过爬虫的人就知道了，这是为了抓取需要登陆后才能显示的页面是用的
[/Quote]

谢谢，了解了。最近在学习HttpClien相关的知识。有兴趣的朋友可以加我一起学习。
QQ:273628
tuchangle 2009-12-06
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找的原创作者了：http://blog.csdn.net/dongle2001/archive/2008/06/17/2557850.aspx


	public static void loginBaidu() {



		URL url = null;



		HttpURLConnection httpurlconnection = null;



		try {



			url = new URL("http://www.baidu.com/");			



			httpurlconnection = (HttpURLConnection) url.openConnection();



			httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");



			httpurlconnection.setRequestProperty("Host", "www.baidu.com");



			httpurlconnection.connect();



			String cookie0 = httpurlconnection.getHeaderField("Set-Cookie");



			httpurlconnection.disconnect();



			url = new URL("http://passport.baidu.com/?login");



			String strPost = "username=xxxxxx&password=xxxxxx&mem_pass=on";



			httpurlconnection = (HttpURLConnection) url.openConnection();



			HttpURLConnection.setFollowRedirects(true);



			httpurlconnection.setInstanceFollowRedirects(true);



			httpurlconnection.setDoOutput(true); // 需要向服务器写数据



			httpurlconnection.setDoInput(true); //



			httpurlconnection.setUseCaches(false); // 获得服务器最新的信息



			httpurlconnection.setAllowUserInteraction(false);



			httpurlconnection.setRequestMethod("POST");



			httpurlconnection



					.addRequestProperty(



							"Accept",



							"image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */*");



			httpurlconnection



					.setRequestProperty("Referer",



							"http://passport.baidu.com/?login&tpl=mn&u=http%3A//www.baidu.com/");



			httpurlconnection.setRequestProperty("Accept-Language", "zh-cn");



			httpurlconnection.setRequestProperty("Content-Type",



					"application/x-www-form-urlencoded");



			httpurlconnection.setRequestProperty("Accept-Encoding",



					"gzip, deflate");



			httpurlconnection



					.setRequestProperty(



							"User-Agent",



							"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Foxy/1; .NET CLR 2.0.50727; MEGAUPLOAD 1.0)");



			httpurlconnection.setRequestProperty("Host", "passport.baidu.com");



			httpurlconnection.setRequestProperty("Content-Length", strPost



					.length()



					+ "");



			httpurlconnection.setRequestProperty("Connection", "Keep-Alive");



			httpurlconnection.setRequestProperty("Cache-Control", "no-cache");



			httpurlconnection.setRequestProperty("Cookie", cookie0);







			httpurlconnection.getOutputStream().write(strPost.getBytes());



			httpurlconnection.getOutputStream().flush();



			httpurlconnection.getOutputStream().close();



			httpurlconnection.connect();



			int code = httpurlconnection.getResponseCode();



			System.out.println("code   " + code);







			String cookie1 = httpurlconnection.getHeaderField("Set-Cookie");



			System.out.print(cookie0 + "; " + cookie1);



			httpurlconnection.disconnect();



			



			url = new URL("http://www.baidu.com/");			



			httpurlconnection = (HttpURLConnection) url.openConnection();



			httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");



			httpurlconnection.setRequestProperty("Host", "www.baidu.com");



			httpurlconnection.setRequestProperty("Cookie", cookie0 + "; " + cookie1);



			httpurlconnection.connect();



			InputStream urlStream = httpurlconnection.getInputStream();



			BufferedInputStream buff = new BufferedInputStream(urlStream);



            		Reader r = new InputStreamReader(buff, "gbk");



            		BufferedReader br = new BufferedReader(r);



           		StringBuffer strHtml = new StringBuffer("");



            		String  strLine = null;



            		while ((strLine = br.readLine()) != null) {



            			strHtml.append(strLine + "\r\n");



            		}



            		System.out.print(strHtml.toString());



		} catch (Exception e) {



			e.printStackTrace();



		} finally {



			if (httpurlconnection != null)



				httpurlconnection.disconnect();



		}



	}


不知道这里cookie的作用是什么？谁知道吗?
tuchangle 2009-12-06
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[Quote=引用 3 楼 shine333 的回复:]
假设Baidu网站就是网游，你贴的程序就是内挂，你用IE上去就是正常登录游戏。你现在的问题就是，我刚才用外挂登录上去了，怎么不开外挂进游戏，还要登录啊？
[/Quote]

谢谢，很受用。程序里用到cookie，我以为就可以记录登陆状态，打开IE时就不用登陆了。
shine333 2009-12-06
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假设Baidu网站就是网游，你贴的程序就是内挂，你用IE上去就是正常登录游戏。你现在的问题就是，我刚才用外挂登录上去了，怎么不开外挂进游戏，还要登录啊？
tuchangle 2009-12-06
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[Quote=引用 1 楼 shine333 的回复:]
...
LZ，看样子您根本不知道那个帖子是干嘛的
[/Quote]

确实，还请多指教。
shine333 2009-12-06
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...
LZ，看样子您根本不知道那个帖子是干嘛的
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