Httpclient请求数据(post)

public static String loginCheck_POST_HttpClient(String name,String pass,String url){
        String result = "";
        
        HttpPost post = new HttpPost(url);//创建httpClient的post请求对象
        //设置请求参数
        HttpParams params = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(params, 5*1000);
        HttpConnectionParams.setSoTimeout(params, 5*1000);
        //传值
        //创建List集合，存放向服务器传递的数据
        List<NameValuePair> reqData = new ArrayList<NameValuePair>();
        NameValuePair p1 = new BasicNameValuePair("username", name);
        NameValuePair p2 = new BasicNameValuePair("userpass", pass);
        reqData.add(p1);
        reqData.add(p2);
        
        try {
            HttpEntity entity = new UrlEncodedFormEntity(reqData, "utf-8");
            post.setEntity(entity);//给post请求对象，设置上传的数据
            HttpClient client = new DefaultHttpClient(params);//创建HttpClient对象
            HttpResponse res = client.execute(post);//执行post请求，获得结果
            if(res.getStatusLine().getStatusCode() == 200){
                HttpEntity resEntity = res.getEntity();//获得相应结果，是一个HttpEntity对象
                result = EntityUtils.toString(resEntity, "utf-8");//转换为字符串
            }
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        return result;
        
    }