httpClient中文乱码问题解决（wap提交）

package pro;

import java.io.IOException;

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

public class simulateWebAction {

    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        String url = "http://wap.aibang.com:80/search.jsp;jsessionid=acITUg0h_0y8?city=%E8%8B%8F%E5%B7%9E&as=3000&p=1&pn=5&ip=58.211.115.116&s=sbiz";
        PostMethod postMethod = new UTF8PostMethod(url);
        StringBuilder origin = new StringBuilder();
        origin.setLength(0);
        
        HttpClient httpClient = new HttpClient();
//        getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler()); 
        
        NameValuePair a = new NameValuePair("a","东港");
        NameValuePair q = new NameValuePair("q","餐厅");
        NameValuePair[] param = new NameValuePair[]{a,q};
        
        postMethod.setRequestBody(param);
        try {
//            执行getMethod
            int statusCode = httpClient.executeMethod(postMethod);
            if (statusCode != HttpStatus.SC_OK) {
                System.err.println("Method failed: "+ postMethod.getStatusLine());
            }else{
//                读内容
                System.out.println(postMethod.getResponseBodyAsString());
            }
            
            } catch (HttpException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }finally{
                postMethod.releaseConnection();
            }    
    }
    
    public static class UTF8PostMethod extends PostMethod{
        public UTF8PostMethod(String url){
            super(url);
        }
        @Override
        public String getRequestCharSet() {
            //return super.getRequestCharSet();
            return "UTF-8";
        }
    }

 我在尝试着直接将中文改变为utf-8的字符串直接写入，失败后！以为是网络传输中应该是iso-8859-1方式传输的，然后将中文转为该编码格式，还是失败后，看httpclient源代码发现：重写postmethod中的getrequestcharset()方法，虽然源代码中该方法动态的设置编码格式，但是好像并没有很好的执行！在重写后，问题解决！