CKediter

　　　/*
      *  上传图片
      */
    @RequestMapping("uploadPic")
    public void uploadPic(HttpServletRequest request, HttpServletResponse response, HttpSession session)
            throws IllegalStateException, IOException{
        DiskFileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload uploader = new ServletFileUpload(factory);
        uploader.setHeaderEncoding("UTF-8");
        PrintWriter out =response.getWriter();
        String CKEditorFuncNum = "1";
        FileItem file = null;
        
        if (!Check.isNullObj(request.getParameter("CKEditorFuncNum"))) {
            CKEditorFuncNum = request.getParameter("CKEditorFuncNum");
        }
        
        List<FileItem> list;
        try {
            list = uploader.parseRequest(request);
            
            for (FileItem item : list) {
                if (!item.isFormField()) {
                    if (item.getName() != null && !"".equals(item.getName())) {
                        file = item;
                }
            }
                
            String path = session.getServletContext().getRealPath("/") + "/upload";
            String fileDir = "img";
            String filepath = path + "/" + fileDir + "/";
            
            String fileName=file.getName();
             String uploadContentType =file.getContentType();
             String expandedName ="";
             if (uploadContentType.equals("image/pjpeg")  
                     || uploadContentType.equals("image/jpeg")) {  
                 // IE6上传jpg图片的headimageContentType是image/pjpeg，而IE9以及火狐上传的jpg图片是image/jpeg  
                 expandedName = ".jpg";  
             } else if (uploadContentType.equals("image/png")  
                     || uploadContentType.equals("image/x-png")) {  
                 // IE6上传的png图片的headimageContentType是"image/x-png"  
                 expandedName = ".png";  
             } else if (uploadContentType.equals("image/gif")) {  
                 expandedName = ".gif";  
             } else if (uploadContentType.equals("image/bmp")) {  
                 expandedName = ".bmp";  
             } else {  
                 out.println("<script type="text/javascript">");  
                 out.println("window.parent.CKEDITOR.tools.callFunction(" + CKEditorFuncNum  
                         + ",''," + "'文件格式不正确（必须为.jpg/.gif/.bmp/.png文件）');");  
                 out.println("</script>");  
                 return ;  
             }  
             if (file.getSize()> 600 * 1024) {  
                 out.println("<script type="text/javascript">");  
                 out.println("window.parent.CKEDITOR.tools.callFunction(" + CKEditorFuncNum  
                         + ",''," + "'文件大小不得大于600k');");  
                 out.println("</script>");  
                 return ;  
             }
             DateFormat df = new SimpleDateFormat(DEFAULT_SUB_FOLDER_FORMAT_AUTO);
             fileName = df.format(new Date())+expandedName;
             file.write(new File(filepath,fileName));
            
             // 返回"图像"选项卡并显示图片  request.getContextPath()为web项目名   
             out.println("<script type="text/javascript">");  
             out.println("window.parent.CKEDITOR.tools.callFunction(" + CKEditorFuncNum  
                     + ",'" + "upload/img/" + fileName + "','')");  
             out.println("</script>");  
            }
            
        } catch (FileUploadException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } 

        return ;  
    }