httpclient4.0的简单使用(1)马上去偷网页吧~
最近需要用到httpclient做一些模拟登陆什么的..本文不涉及到验证码下载的处理..(因为我没用到…)

首先是下载地址

http://disk.idealweb.cn/disk/f/213_20120830185357_2173_httpcomponents-client-4.2.1-bin.tar.gz
ps:推荐一下上面自己做的网盘,不需要任何注册直接上传,可以外链..哈哈~disk.idealweb.cn

引入改引入的包.

主要的两种获取页面的方式.get post直接贴代码.
关键的都有注释..
真的很简单了,再配合上httpwatch和正则理论上大多数页面的数据都可以轻松抓取了
刷个链接..博客的地址...
http://www.wuliaoji.com/httpclient4-0%E7%9A%84%E7%AE%80%E5%8D%95%E4%BD%BF%E7%94%A8.html

Java code

package com.bms.core; import java.io.IOException;import java.util.ArrayList;import java.util.List; import org.apache.http.Consts;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils; import com.bms.util.CommonUtil; public class Test2 {     /**     * @param args     * @throws IOException      * @throws ClientProtocolException      */    public static void main(String[] args) throws ClientProtocolException, IOException {        DefaultHttpClient httpclient = new DefaultHttpClient();          HttpGet httpGet = new HttpGet("http://www.baidu.com");         String body = "";         HttpResponse response;         HttpEntity entity;         response = httpclient.execute(httpGet);         entity = response.getEntity();         body = EntityUtils.toString(entity);//这个就是页面源码了         httpGet.abort();//中断请求,接下来可以开始另一段请求         System.out.println(body);         //httpGet.releaseConnection();//释放请求.如果释放了相当于要清空session         //以下是post方法         HttpPost httpPost = new HttpPost("http://www.baidu.com");//一定要改成可以提交的地址,这里用百度代替         List <NameValuePair> nvps = new ArrayList <NameValuePair>();         nvps.add(new BasicNameValuePair("name", "1"));//名值对         nvps.add(new BasicNameValuePair("account", "xxxx"));         httpPost.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));         response = httpclient.execute(httpPost);         entity = response.getEntity();         body = EntityUtils.toString(entity);         System.out.println("Login form get: " + response.getStatusLine());//这个可以打印状态         httpPost.abort();         System.out.println(body);         httpPost.releaseConnection();    } }

可能会有..httpclient4.0的简单使用(2)...

[解决办法]
学习，感谢楼主分享