public static void main(String[] args) {          HttpClient client = new HttpClient();          NameValuePair[] nameValuePairs = {                  new NameValuePair("username", "aaa"),                  new NameValuePair("passwd", "123456")          };          PostMethod postMethod = new PostMethod("登录url");          postMethod.setRequestBody(nameValuePairs);          int stats = 0;          try {              stats = client.executeMethod(postMethod);          } catch (HttpException e) {              e.printStackTrace();          } catch (IOException e) {              e.printStackTrace();          }          postMethod.releaseConnection();//这里最好把之前的资源放掉          CookieSpec cookiespec = CookiePolicy.getDefaultSpec();          Cookie[] cookies = cookiespec.match("域名", 80/*端口*/, "/" , false , client.getState().getCookies());          for (Cookie cookie : cookies) {              System.out.println(cookie.getName() + "##" + cookie.getValue());          }                     HttpMethod method = null;          String encode = "utf-8";//页面编码,按访问页面改动          String referer = "http://域名";//http://www.163.com          method = new GetMethod("url2");//后续操作          method.getParams().setParameter("http.useragent","Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)");          method.setRequestHeader("Referer", referer);             client.getParams().setContentCharset(encode);          client.getParams().setSoTimeout(300000);          client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(10, true));               try {              stats = client.executeMethod(method);          } catch (HttpException e) {              e.printStackTrace();          } catch (IOException e) {              e.printStackTrace();          }          if (stats == HttpStatus.SC_OK) {              System.out.println("提交成功!");                         }      }