图片转为数据流

                                                        FileInputStream fis;
							String uploadBuffer = "";
							try {
								fis = new FileInputStream(FILEPATH);

								ByteArrayOutputStream baos = new ByteArrayOutputStream();
								byte[] buffer = new byte[1024];
								int count = 0;
								while ((count = fis.read(buffer)) >= 0) {
									baos.write(buffer, 0, count);
								}
								uploadBuffer = new String(Base64.encode(
										baos.toByteArray(), Base64.DEFAULT)); // 进行Base64编码
							} catch (FileNotFoundException e) {

								e.printStackTrace();
							} catch (IOException e) {

								e.printStackTrace();
							}
							jsonObjectDefectPhoto.put("FILEBUFFER",
									uploadBuffer);