//post请求
        private void doPostHttp() {
            //文本参数
            Map<String, String> params = new HashMap<String, String>();
            params.put("uid", "111");

            //post
            MyHttp.doPost(this, "http://192.168.3.1/test_post.php", params, new MyHttpJsonResponseHandler() {
                @Override
                public void onSuccess(int statusCode, JSONObject response) {
                    Log.i("tsy", "onSuccess status code=" + statusCode + " response=" + response);
                }

                @Override
                public void onFailure(int statusCode, String error_msg) {
                    Log.i("tsy", "onFailure status code=" + statusCode + " error_msg=" + error_msg);
                }

                @Override
                public void onCancel() {
                    Log.i("myhttp", "request on cancel");
                }
            });
        }

        //get请求
        private void doGetHttp() {
            //文本参数
            Map<String, String> params = new HashMap<String, String>();
            params.put("uid", "111");

            //get
            MyHttp.doGet(this, "http://192.168.3.1/test_post.php", params, new MyHttpJsonResponseHandler() {
                @Override
                public void onSuccess(int statusCode, JSONObject response) {
                    Log.i("tsy", "onSuccess status code=" + statusCode + " response=" + response);
                }

                @Override
                public void onFailure(int statusCode, String error_msg) {
                    Log.i("tsy", "onFailure status code=" + statusCode + " error_msg=" + error_msg);
                }

                @Override
                public void onCancel() {
                    Log.i("myhttp", "request on cancel");
                }
            });
        }

        //上传文件
        private void doUpload() {
            //文件参数
            File file = new File(Environment.getExternalStorageDirectory() + "/girls/head/output_tmp2.jpg");
            Map<String, File> files = new HashMap<String, File>();
            files.put("avatar", file);

            //upload
            MyHttp.doUpload(this, "http://192.168.3.1/test_post.php", files, new MyHttpFileResponseHandler() {
                @Override
                public void onSuccess(int statusCode) {
                    Log.i("tsy", "onSuccess status code=" + statusCode);
                }

                @Override
                public void onFailure(int statusCode, String error_msg) {
                    Log.i("tsy", "onFailure status code=" + statusCode + " error_msg=" + error_msg);
                }

                @Override
                public void onProgress(long bytesWritten, long totalSize) {
                    Log.i("tsy", String.format("Progress %d from %d" +
                     " (%2.0f%%)", bytesWritten, totalSize, (totalSize > 0) ? (bytesWritten * 1.0 / totalSize) * 100 : -1));
                }

                @Override
                public void onCancel() {
                    Log.i("tsy", "request on cancel");
                }
            });
        }

        //下载文件
        private void doDownload() {
            File file = new File(Environment.getExternalStorageDirectory() + "/girls/head/output_tmp2.jpg");    //下载后存储的file位置
            MyHttp.doDownload(this, "http://192.168.3.1/head.jpg", file, new MyHttpFileResponseHandler() {
                @Override
                public void onSuccess(int statusCode) {
                    Log.i("tsy", "onSuccess status code=" + statusCode);
                }

                @Override
                public void onFailure(int statusCode, String error_msg) {
                    Log.i("tsy", "onFailure status code=" + statusCode);
                }

                @Override
                public void onProgress(long bytesWritten, long totalSize) {
                    Log.i("tsy", String.format("Progress %d from %d (%2.0f%%)", bytesWritten, totalSize, (totalSize > 0) ? (bytesWritten * 1.0 / totalSize) * 100 : -1));
                }

                @Override
                public void onCancel() {
                    Log.i("tsy", "request on cancel");
                }
            });
        }

        //页面销毁关闭请求 防止crash 建议放到BaseActivity BaseFragrament里面
        @Override
        protected void onDestroy() {
            super.onDestroy();

            MyHttp.cancelRequest(this);     //页面退出 关闭所有请求
        }