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);
}
}