httpclient postデータの場合、中国語の文字化けしの問題

package com.baby.httpclient;

import java.io.IOException;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;

public class TestHttpClientPost {
	
	HttpClient httpClient = new HttpClient();
	String catId = "32";
	
	public void post() throws HttpException, IOException{
		
		
		String url = "http://localhost/phpcms/admin.php?mod=phpcms&file=content&action=add&catid=" + catId +"&modelid=1";
//		httpClient.getHostConfiguration().setHost("localhost", 80, "http");
		
		
		PostMethod postMethod = new UTF8PostMethod(url);
		postMethod.setRequestHeader("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
	    postMethod.setRequestHeader("connection", "Keep-Alive");
	    postMethod.setRequestHeader("User-Agent","Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.4) Gecko/20091016 Firefox/3.5.4");
	    postMethod.setRequestHeader("Accept-Language", "zh-cn,zh;q=0.5");
	    postMethod.setRequestHeader("ContentType","application/x-www-form-urlencoded;charset=gbk");  
	    postMethod.setRequestHeader("Cookie", "guestbook=3; uuid=3E7AFDB3DAC6AF5601A9969B2C78441EACC2B5C5E2E5B301; PHPSESSID=dee161c5bb102a2f7b0137141ee53d9f; EUrIWifQukusername=phpcms; EUrIWifQukauth=AT8HVwFWAQMOAAUGWlcHWFAEWlYAUFBTAFRQB1dSAFYFUg%3D%3D; EUrIWifQukcookietime=0");
	    
	    String aaa = "info[catid]=[  ID]&info[title]=[  :  ]&info[keywords]=[  :  ]&info[author]=[  :  ]" +
	    		"&info[copyfrom]=[  :  ]&add_introduce=1&introcude_length=200&auto_thumb=1" +
	    		"&auto_thumb_no=1&info[content]=[  :  ]&info[paginationtype]=0&info[maxcharperpage]=10000" +
	    		"&status=99&info[inputtime]=[  :  ]&info[posids]=-99]&info[posids][]=1&info[posids][]=2&info[posids][]=3&info[posids][]=4&info[posids][]=5" +
	    		"&info[groupids_view]=-99&info[template]=show&dosubmit=1";
	    NameValuePair[] data = {
	    		//        id 
	    		new NameValuePair("info[catid]",catId),
	    		new NameValuePair("info[title]","                       ---"),
	    		new NameValuePair("info[keywords]","             "),
	    		new NameValuePair("info[author]","sina"),
	    		//    
	    		new NameValuePair("info[copyfrom]","   "),
	    		//         X     (   description)  ，1    ，0     
	    		new NameValuePair("add_introduce","1"),
	    		//       ，   200   
	    		new NameValuePair("introcude_length","200"),
	    		//        X         ，          ，1       ，0        
	    		new NameValuePair("auto_thumb","1"),
	    		//            ，     ，         
	    		new NameValuePair("auto_thumb_no","1"),
	    		
	    		new NameValuePair("info[content]","<center><img alt=                       src=http://i1.sinaimg.cn/ty/j/2009-11-06/U2463P6T12D4683237F44DT20091106093751.jpg border=1 ><br><img src=http://i0.sinaimg.cn/home/c.gif height=5 width=1 style=\"border:none;\"><br>               ：     <br><br></center>" +
	    				"<p>　　     “    ”    ，                 。                ，        ，                。</p>" +
	    				"<p>　　          ，           ，                  。          ，                  ，      、               ，          。  ，                。                      ，               。             ，       ，          。</p>"),
	    		//    ,     ，0     ，1    
	    		new NameValuePair("info[paginationtype]","0"),
	    		//      ，              
	    		new NameValuePair("info[maxcharperpage]","10000"),
	    		//99           
	    		new NameValuePair("status","99"),
	    		//    
	    		new NameValuePair("info[inputtime]","2009-11-24 12:53"),
	    		//     ，-99    ，     ，         
	    		new NameValuePair("info[posids]","-99"),
	    		//1：     2：     3：     4：      5：     
	    		new NameValuePair("info[posids][]","1"),
	    		new NameValuePair("info[posids][]","2"),
	    		new NameValuePair("info[posids][]","3"),
	    		new NameValuePair("info[posids][]","4"),
	    		new NameValuePair("info[posids][]","5"),
	    		//      ，-99    
	    		new NameValuePair("info[groupids_view]","-99"),
	    		//      
	    		new NameValuePair("info[template]","show"),
	    		//    
	    		new NameValuePair("dosubmit","1")
	    };
		
	    postMethod.setRequestBody(data);
	    int statusCode = httpClient.executeMethod(postMethod);
	    System.out.println(statusCode);
	    //    
	    byte[] responseBody = postMethod.getResponseBody();
	    //    
	    System.out.println(new String(responseBody,"UTF-8"));
//	    System.out.println(new String(postMethod.getResponseBodyAsString().getBytes("ISO-8859-1"),"GB2312"));

	}
	
	
	public static void main(String[] args) throws HttpException, IOException {
		TestHttpClientPost t = new TestHttpClientPost();
		t.post();
	}
	
	
	
	//Inner class for UTF-8 support
    public static class UTF8PostMethod extends PostMethod{
        public UTF8PostMethod(String url){
            super(url);
        }
        @Override
        public String getRequestCharSet() {
            //return super.getRequestCharSet();
            return "gbk";
        }
    }  

	
}