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Java example source code file (ClientCustomContext.java)

This example source code file (ClientCustomContext.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

basiccookiestore, basichttpcontext, clientcustomcontext, defaulthttpclient, exception, httpclient, httpcontext, httpentity, httpget, httpresponse, list, util

The ClientCustomContext.java example source code

/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

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;


/**
 * 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();

        // 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
        if (entity != null) {
            entity.consumeContent();
        }
        
        System.out.println("----------------------------------------");

        // When HttpClient instance is no longer needed, 
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();        
    }
    
}

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