使用java模拟登陆
来源:优易学  2011-1-5 9:24:12   【优易学:中国教育考试门户网】   资料下载   IT书店
  public static void loginBaidu()
  {
  URL url = null;
  HttpURLConnection httpurlconnection = null;
  try {
  url = new URL(http://www.examda.com/);
  httpurlconnection = (HttpURLConnection) url.openConnection();
  httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");
  httpurlconnection.setRequestProperty("Host", www.examda.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.examda.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.examda.com/?login&tpl=mn&u=http%3A//www.examda.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.examda.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.examda.com/);
  httpurlconnection = (HttpURLConnection) url.openConnection();
  httpurlconnection.setRequestProperty("User-Agent", "Internet Explorer");
  httpurlconnection.setRequestProperty("Host", www.examda.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();
  }
  }

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