Apache HttpComponents 获取Cookie

package org.apache.http.examples.client;



import java.util.List;



import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.CookieStore;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.protocol.ClientContext;

import org.apache.http.cookie.Cookie;

import org.apache.http.impl.client.BasicCookieStore;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.protocol.HttpContext;

import org.apache.http.protocol.BasicHttpContext;

import org.apache.http.util.EntityUtils;





/**

 * This example demonstrates the use of a local HTTP context populated with

 * custom attributes.

 */

public class ClientCustomContext {



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



        HttpClient httpclient = new DefaultHttpClient();

        try {

            // Create a local instance of cookie store

            CookieStore cookieStore = new BasicCookieStore();



            // Create local HTTP context

            HttpContext localContext = new BasicHttpContext();

            // Bind custom cookie store to the local context

            localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);



            HttpGet httpget = new HttpGet("http://www.google.com/");



            System.out.println("executing request " + httpget.getURI());



            // Pass local context as a parameter

            HttpResponse response = httpclient.execute(httpget, localContext);

            HttpEntity entity = response.getEntity();



            System.out.println("----------------------------------------");

            System.out.println(response.getStatusLine());

            if (entity != null) {

                System.out.println("Response content length: " + entity.getContentLength());

            }

            List<Cookie> cookies = cookieStore.getCookies();

            for (int i = 0; i < cookies.size(); i++) {

                System.out.println("Local cookie: " + cookies.get(i));

            }



            // Consume response content

            EntityUtils.consume(entity);



            System.out.println("----------------------------------------");



        } finally {

            // When HttpClient instance is no longer needed,

            // shut down the connection manager to ensure

            // immediate deallocation of all system resources

            httpclient.getConnectionManager().shutdown();

        }

    }



}