图片上传代码-旧的实现方式，项目中已删除，发表做备用

    项目中的图片上传，经过了3个阶段。

1.实现单个图片的上传。

2.实现多个图片的上传。

  为了兼容和更多的适应性，统一采用多个图片上传的接口。

 3.简化多个图片的上传。

   前端代码和后端Controller代码，都做到复用。

   下面的代码是，单个图片和多个图片的上传。

   前端图片上传用的是WebUploader

/**
 * 图片上传控制器
 */
//@Controller
@Deprecated
public class ImageController extends BaseController {

	@Resource
	private PhotoService borrowerPhotoService;

	@Resource
	private GlobalConfig globalConfig;

	//@RequestMapping("/home/idCardImageUpload")
	@Deprecated
	public void idCardImageUpload(HttpServletRequest request,
			HttpServletResponse response) throws IllegalStateException,
			IOException {
		// 定义上传路径
		String imagePath = globalConfig.getImageUploadPath();
		
		JSONObject jsonObject = new JSONObject();
		response.setContentType("text/html;charset=UTF-8");

		// 创建一个通用的多部分解析器
		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(
				request.getSession().getServletContext());

		// 判断 request 是否有文件上传,即多部分请求
		boolean multipart = multipartResolver.isMultipart(request);
		if (!multipart) {
			jsonObject.put("success", false);
			jsonObject.put("fileName", "");
			returnJsonObject(response, jsonObject);
			return;
		}
		// 转换成多部分request
		String finalFileName = CommonUtil.handleFileList(request, imagePath);
		jsonObject.put("success", true);
		jsonObject.put("fileName", finalFileName);
		returnJsonObject(response, jsonObject);

	}

	/**
	 * 单独图片上传
	 */
	@Deprecated
	@RequestMapping(value = "/idCardImageUpload2", method = RequestMethod.POST)
	public void uploadOneFile(HttpServletRequest request, Model model,
			HttpServletResponse response) {
		BaseUser u = getCurrentUser();
		JSONObject jsonObj = new JSONObject();
		response.setContentType("text/html;charset=UTF-8");
		String imagePath = (String) BasePropertyConfigurer
				.getContextProperty("idCardImageUploadPath");
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		CommonsMultipartFile commonsMultipartFile = (CommonsMultipartFile) multipartRequest
				.getFile("Filedata");
		String fileName = commonsMultipartFile.getOriginalFilename();
		model.addAttribute("fileName", fileName);
		// TODO
		String[] strs = fileName.split("\.");
		if (strs.length != 2) {// 图片名称不能有'.'
			model.addAttribute("flag", false);
			model.addAttribute("message", "图片命名格式错误!");
			jsonObj.put("success", false);
			returnJsonObject(response, jsonObj);
			return;
		}
		try {
			fileName = AES.Encrypt(strs[0], CommonUtil.uniqueFileName()
					.substring(1))
					+ "." + strs[1];
		} catch (Exception e1) {
			e1.printStackTrace();
		}
		if (!commonsMultipartFile.isEmpty()) {
			File imageDir = new File(imagePath);
			if (!imageDir.exists())
				imageDir.mkdirs();
			File targetFile = new File(imagePath + fileName);
			try {
				commonsMultipartFile.transferTo(targetFile);

				model.addAttribute("flag", true);
			} catch (IllegalStateException e) {
				e.printStackTrace();
				model.addAttribute("flag", false);
				model.addAttribute("message", e.getMessage());
			} catch (IOException e) {
				e.printStackTrace();
				model.addAttribute("flag", false);
				model.addAttribute("message", e.getMessage());
			}

			Photo photo = new Photo();
			photo.setSort(0);
			photo.setUid(Long.valueOf(u.getId()));
			photo.setUrl("idCard/" + targetFile.getName());
			photo.setStatus(1);
			photo.setAddtime(new Date());
			borrowerPhotoService.save(photo);
		}
		jsonObj.put("success", true);
		returnJsonObject(response, jsonObj);
	}

	@Deprecated
	@RequestMapping(value = "/doadd22", method = RequestMethod.POST)
	public void doAdd(Photo photo, HttpServletRequest request, Model model,
			HttpServletResponse response) {
		JSONObject jsonObj = new JSONObject();
		response.setContentType("text/html;charset=UTF-8");
		String imagePath = globalConfig.getImageUploadPath();
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		CommonsMultipartFile commonsMultipartFile = (CommonsMultipartFile) multipartRequest
				.getFile("Filedata");
		String fileName = handleFileName(model, commonsMultipartFile);

		if (!commonsMultipartFile.isEmpty()) {
			File imageDir = new File(imagePath);
			if (!imageDir.exists())
				imageDir.mkdirs();
			File targetFile = new File(imagePath + "/" + fileName);
			try {
				commonsMultipartFile.transferTo(targetFile);
			} catch (IllegalStateException | IOException e) {
				e.printStackTrace();
			}

			photo.setUrl(targetFile.getName());
			photo.setStatus(PhotoStatus.NORMAL.getCode());
			// photoService.save(photo);
		}

		jsonObj.put("success", true);
		returnJsonObject(response, jsonObj);
	}

	private String handleFileName(Model model,
			CommonsMultipartFile commonsMultipartFile) {
		String fileName = commonsMultipartFile.getOriginalFilename();
		model.addAttribute("fileName", fileName);
		String suffix = ".jpg";
		int index = fileName.lastIndexOf(".");
		if (index != -1) {
			suffix = fileName.substring(index, fileName.length());
		}
		try {
			fileName = MD5Util.md5(date()) + suffix;
		} catch (Exception e1) {
			e1.printStackTrace();
		}
		return fileName;
	}

	private String date() {
		return DateFormatUtil.format(new Date(), "yyyyMMddHHmmssSSS")
				.substring(1);
	}
}