java.net.HttpURLConnection请求时使用CookieHandler,CookieManager和CookieStore获取Cookie

import java.net.CookieHandler;

import java.net.CookieManager;

import java.net.CookieStore;

import java.net.HttpCookie;

import java.net.URL;

import java.net.URLConnection;

import java.util.List;

 

public class FetchCookie {

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

     String urlString = "http://java.sun.com" ;

     CookieManager manager = new CookieManager();

     CookieHandler.setDefault(manager);

     URL url = new URL(urlString);

     URLConnection connection = url.openConnection();

     Object obj = connection.getContent();

     url = new URL(urlString);

     connection = url.openConnection();

     obj = connection.getContent();

     CookieStore cookieJar = manager.getCookieStore();

     List<HttpCookie> cookies = cookieJar.getCookies();

     for (HttpCookie cookie : cookies) {

       System.out.println(cookie);

     }

   }

}