commons-httpclient.jar的使用(Cookie的使用 )

package com.test;

import org.apache.commons.httpclient.Cookie;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.NameValuePair;

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

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

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

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

public class FormLoginDemo {

 static final String LOGON_STR = "localhost";

 static final int LOGON_PORT = 8080;

 public static void main(String[] args) throws Exception{

  HttpClient client = new HttpClient();

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

//   模拟登录页面login.jsp->main.jsp

  PostMethod post = new PostMethod("/a.jsp");

  NameValuePair name = new NameValuePair("name", "Id");

  NameValuePair pass = new NameValuePair("password" , "Id");

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

  int status = client.executeMethod(post);

  System.out.println(post.getResponseBodyAsString());

  post.releaseConnection();

  //查看cookie 信息

  CookieSpec cookiespec = CookiePolicy.getDefaultSpec();

  Cookie[] cookies = cookiespec.match(LOGON_STR, 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());

   }

  }

  //访问所需的页面main2.jsp

  GetMethod get = new GetMethod("/b.jsp");

  client.executeMethod(get);

  System.out.println(get.getResponseBodyAsString());

  get.releaseConnection();

 }

}