//RequestParams params = new RequestParams();// 預設編碼UTF-8
        //params.addHeader("name", "value");
        //params.addQueryStringParameter("name", "value");

        HttpUtils http = new HttpUtils();
        http.configCurrentHttpCacheExpiry(1000 * 10);
        http.send(HttpRequest.HttpMethod.GET,
                "http://www.baidu.com",
                //params,
                new RequestCallBack<String>() {

                    @Override
                    public void onStart() {
                        resultText.setText("conn...");
                    }

                    @Override
                    public void onLoading(long total, long current, boolean isUploading) {
                        resultText.setText(current + "/" + total);
                    }

                    @Override
                    public void onSuccess(ResponseInfo<String> responseInfo) {
                        resultText.setText("response:" + responseInfo.result);
                    }


                    @Override
                    public void onFailure(HttpException error, String msg) {
                        resultText.setText(msg);
                    }
                });