调用webservice

package com.rzhang.webservice;

import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import android.util.Log;

public class Webservice 
{
	public static String url="http://58.247.98.204:8088/sm/Service.asmx/";
	
	public static String Login(String name,String pw)
    {
       String result = "";
       String requestUrl =url+"UserLogin";
       HttpClient client = new DefaultHttpClient();   
       HttpPost post = new HttpPost(requestUrl); ?

      //传入的参数，name.password字段，需要跟webservice接口要求的字段一致 
       List<NameValuePair> params = new ArrayList<NameValuePair>();   
       params.add(new BasicNameValuePair("name",name));
       params.add(new BasicNameValuePair("password",pw));  
       params.add(new BasicNameValuePair("type","2"));     
       try 
       {
           // 设置URL编码   
           post.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));   
           // 发送请求并获取反馈   
           HttpResponse response = client.execute(post);   
 
           // 判断请求是否成功处理   
           if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) 
           {   
               // 解析返回的内容   
                result = EntityUtils.toString(response.getEntity());   
               Log.d("",result);
           }              
       }
       catch (Exception e) 
       {   
           e.printStackTrace();   
       }   
       
       return result;
    }

}