java輔導(dǎo)：使用java模擬

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); // 需要向服務(wù)器寫數(shù)據(jù)
    httpurlconnection.setDoInput(true); //
    httpurlconnection.setUseCaches(false); // 獲得服務(wù)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();
    }
    }