httpclient,tomcat表单验证

/**
 * 用来演示登录表单的示例
 * @author NECSTHZ.zhaojianming 
 * @Modification{#} TestRed.java Create on 2009/02/17 11:39:27   
 * @version 1.0
 * @JDK version used: jdk1.6
 * @Copyright (c) 2008 by NECSTHZ
 */
package http.test;

import java.io.IOException;

import org.apache.commons.httpclient.*;

import org.apache.commons.httpclient.cookie.*;

import org.apache.commons.httpclient.methods.*;

/**
 * @Description:TestRed.java
 * @author NECSTHZ.zhaojianming
 */
public class TestRed {

 static final String LOGON_SITE = "172.28.140.113";

 static final int LOGON_PORT = 8080;

 /**
  * @method main
  * @param args
  * @author zhaojianming
  */
 public static void main(String[] args) throws Exception {

  HttpClient client = new HttpClient();

  client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT);

  // 模拟登录页面
  String url = "http://172.28.140.113:8080/jsp-examples/security/protected/index.jsp";
  PostMethod post = new PostMethod(url);
  client.executeMethod(post);

  // 查看cookie信息
  CookieSpec cookiespec = CookiePolicy.getDefaultSpec();

  Cookie[] cookies = cookiespec.match(LOGON_SITE, LOGON_PORT, "/", false,
    client.getState().getCookies());

  if (cookies.length == 0) {
   System.out.println("@@@@@@@@@@@@" + "None");
  } else {
   for (int i = 0; i < cookies.length; i++) {
    System.out.println(cookies[i].toString());
   }
  }
  PostMethod postnew = new PostMethod(
    "http://172.28.140.113:8080/jsp-examples/security/protected/j_security_check");
  NameValuePair name = new NameValuePair("j_username", "tomcat");

  NameValuePair pass = new NameValuePair("j_password", "tomcat");

  postnew.setRequestBody(new NameValuePair[] { name, pass });

  Header hCookie = post.getResponseHeader("set-Cookie");
  String cookie = hCookie.getValue();
  Header hHost = post.getRequestHeader("Host");
  Header hUserAgent = post.getRequestHeader("User-Agent");
  if (hCookie == null || hHost == null || hUserAgent == null) {
   return;
  }
  postnew.setRequestHeader("Cookie", cookie);
  postnew.setRequestHeader(hHost);
  postnew.setRequestHeader(hUserAgent);
  int statusCode;
  try {
   statusCode = client.executeMethod(postnew);
   System.out.println("@@@@@@@@2@@" + postnew.getStatusCode());
   if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY
     || statusCode == HttpStatus.SC_MOVED_TEMPORARILY) {
    Header locationHeader = postnew.getResponseHeader("location");
    String location = null;
    if (locationHeader != null) {
     location = locationHeader.getValue();
     System.out.println("location:" + location);
    } else {
     System.err.println("Location field value is null.");
     return;
    }
   }
  } catch (HttpException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();

  } finally {
   post.releaseConnection();
   postnew.releaseConnection();
   System.err.println("over");
  }

 }

}