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);

    }

  }

}