/**
* 上传文件 返回json对象配合jquery-fileupload
*
* @param request
* @param response
* @return
*/
@RequestMapping(value = "/ckupload", method = RequestMethod.POST)
public void ckupload(MultipartHttpServletRequest request, HttpServletResponse response)
throws IOException {
LinkedList<FileMeta> fileMetas = this.upload(request, response);
String callback = request.getParameter("CKEditorFuncNum");
FileMeta fileMeta = fileMetas.getLast();
String out =
"<script type=\"text/javascript\">window.parent.CKEDITOR.tools.callFunction("
+ callback
+ ", '"
+ fileMeta.getFileName()
+ "','');</script>";
response.getWriter().write(out);
}
/**
* 上传文件 返回json对象配合jquery-fileupload
*
* @param request
* @param response
* @return
*/
@RequestMapping(value = "/upload", method = RequestMethod.POST)
public @ResponseBody LinkedList<FileMeta> upload(
MultipartHttpServletRequest request, HttpServletResponse response) {
StringBuffer path = new StringBuffer(request.getSession().getServletContext().getRealPath("/"));
LinkedList<FileMeta> files = new LinkedList<FileMeta>();
// 1.创建Iterator对象
Iterator<String> itr = request.getFileNames();
MultipartFile mpf = null;
// 2.遍历获取文件
while (itr.hasNext()) {
// 2.1 get next MultipartFile
mpf = request.getFile(itr.next());
// System.out.println(mpf.getOriginalFilename() + " uploaded! " + files.size());
String fileName = mpf.getOriginalFilename();
// 获取上传文件的类型
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length());
// 2.2 如果文件大于10个，移除第一个
if (files.size() >= 10) files.pop();
// 2.3 创建文件信息
fileMeta = new FileMeta();
fileMeta.setFileSize(mpf.getSize() / 1024 + " Kb");
fileMeta.setFileType(mpf.getContentType());
try {
fileMeta.setBytes(mpf.getBytes());
File temp = null;
Calendar calendar = Calendar.getInstance();
int YY = calendar.get(Calendar.YEAR);
int MM = calendar.get(Calendar.MONTH) + 1;
int DD = calendar.get(Calendar.DATE);
int HH = calendar.get(Calendar.HOUR);
int NN = calendar.get(Calendar.MINUTE);
int SS = calendar.get(Calendar.SECOND);
String dir = fs + "upload" + fs + YY + fs + MM + fs + DD + fs;
path.append(dir);
// 如果上传文件目录不存在则创建
File uploadDir = new File(path.toString());
if (!uploadDir.exists()) {
uploadDir.mkdirs();
}
// 这里定义一个随机数，便于上传文件不同名
Random r = new Random();
String date = new SimpleDateFormat("yyyyMMddhhmmssSSS").format(calendar.getTime());
String fname = date + r.nextInt(100) + "." + fileExt;
String newFileName = path.append(fname).toString();
fileMeta.setFileName(dir + fname);
// 复制文件到本地硬盘
FileCopyUtils.copy(mpf.getBytes(), new FileOutputStream(newFileName));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 2.4 添加文件信息
files.add(fileMeta);
}
// 返回结果如下：
// [{"fileName":"app_engine-85x77.png","fileSize":"8 Kb","fileType":"image/png"},...]
return files;
}