HttpClient Examples:Custom execution context

官方主頁：http://hc.apache.org/

Components

• HttpCore
• HttpClient

Custom execution context

This example demonstrates the use of a local HTTP context populated custom attributes.

自定义执行内容

这个实例示范用用户自定义本地HTTP内容填充属性

package cn.lake.util;

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
		entity.consumeContent();

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

}

翻譯的不好，請見諒！