使用httputils上传图片到服务器

//创建httpUtils对象
HttpUtils mRegHttpUtils = new HttpUtils();
//图片路径
String path = "/sdcard/Download/zxing.jpg";
//param
RequestParams params = new RequestParams();
//将图片封装为file
params.addBodyParameter("f_img",new File(path));
//以post方式发送到urlstring服务器
mRegHttpUtils.send(HttpMethod.POST,
                        urlstring, params,
                        new RequestCallBack<String>() {

                            @Override
                            public void onFailure(HttpException arg0,
                                    String arg1) {
                                // TODO Auto-generated method stub
                                Log.i("tag", "failed" + arg0.toString());
                            }

                            @Override
                            public void onStart() {
                                // TODO Auto-generated method stub
                                super.onStart();
                            }

                            @Override
                            public void onSuccess(ResponseInfo<String> arg0) {
                                // TODO Auto-generated method stub
                                 //返回结果       
                             Log.i("tag","success"+arg0.result);
                            
                                
                            }
                        });