有关Android访问.net的 webservice。很急解决方案

    public static InputStream postFromHttpClient(String path,            Map<String, String> params, String encode) throws Exception {        // 用于存放请求参数        List<NameValuePair> formparams = new ArrayList<NameValuePair>();        for (Map.Entry<String, String> entry : params.entrySet()) {            formparams.add(new BasicNameValuePair(entry.getKey(), entry                    .getValue()));        }        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams,                encode);        HttpPost httppost = new HttpPost(path);        System.out.println(entity.toString());        httppost.setEntity(entity);        // 看作是浏览器        HttpClient httpclient = new DefaultHttpClient(); // 发送post请求        HttpResponse response = httpclient.execute(httppost);        //        return readStream(response.getEntity().getContent());        System.out.println(response.getEntity().getContent());        return response.getEntity().getContent();    }