HttpClient登陆网站参考

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static final String LOGON_SITE = "xxx.com"; static final int LOGON_PORT = 80; HttpClient client = new HttpClient();  client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT);  PostMethod post = new PostMethod("/terminal/system/login.action?loginName=XXX&password=XXX&oem=terminal");  // 设置登陆需要的几个参数  // NameValuePair name = new NameValuePair("loginName","XXX");  // NameValuePair pass = new NameValuePair("password","XXX");  // NameValuePair em = new NameValuePair("oem","terminal");  // post.setRequestBody(new NameValuePair[]{name,pass,oem});  client.executeMethod(post);  System.out.println(post.getStatusLine().toString());  post.releaseConnection();  // 检查是否重定向  int statuscode = post.getStatusCode();    if ((statuscode == HttpStatus.SC_MOVED_TEMPORARILY) || (statuscode == HttpStatus.SC_MOVED_PERMANENTLY) ||     (statuscode == HttpStatus.SC_SEE_OTHER) || (statuscode == HttpStatus.SC_TEMPORARY_REDIRECT)) {   // 读取新的URL地址   Header header = post.getResponseHeader("location");   if (header != null) {    String newuri = header.getValue();    if ((newuri == null) || (newuri.equals("")))     newuri = "/";    GetMethod redirect = new GetMethod(newuri);    client.executeMethod(redirect);    System.out.println("Redirect:" + redirect.getStatusLine().toString());    redirect.releaseConnection();   } else    System.out.println("Invalid redirect");  }

文章出处:http://xieruilin.iteye.com/blog/746306