文件上传显示保存到数据库实现类

 public class UpLoadAction extends ActionSupport implements
                 ServletRequestAware,ServletResponseAware {
     private HttpServletRequest request;
     private HttpServletResponse response;
     private List<File> uploadFile;
     private List<String> uploadFileContentType;
     private List<String> uploadFileFileName;


     public void setServletRequest(HttpServletRequest request) {
         this.request = request;
     }

     public void setServletResponse(HttpServletResponse response) {
         this.response = response;
     }


     /**
      * 上传图片，至路径保存至数据库
      * @return
      * @throws Exception
      */
     public String uploadImage() throws Exception {
         String savePath = request.getSession().getServletContext().getRealPath("/upload/temp");
         String result = "error";

         File dir = new File(savePath);
         if (!dir.exists()) {
             dir.mkdirs();
         }
         List<File> files = getUploadFile();
         if((files!=null) && (files.size()>0)){
             for (int i = 0; i < files.size(); i++) {
                 FileUtils.copyFile(files.get(i), new File(savePath + "//"
                         + getUploadFileFileName().get(i)));
             }
         }
         else{
             return result;
         }

         return SUCCESS;
     }


     /**
      * 显示图片
      * @return
      */
     public String getHotelImage(){

          try {
              String name = request.getParameter("name");

              name = request.getSession().getServletContext().getRealPath("/") +"upload/hotel/" + name;
              FileInputStream fi = new FileInputStream(name);
              BufferedInputStream bi = new BufferedInputStream(fi);
              int c =0;
              while((c=bi.read())!=-1){
                 response.getWriter().write(c);
              }
              response.getWriter().flush();
              fi.close();
         }
         catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
         return "success";
     }

     /**
      * 持久化到数据库
      * @return
      */
     public String insertiImageInfo() {

         try{
             hotelimage = new HotelImage();
             hotelimage.setImageTitle(imageTitle);
              String image = request.getParameter("uploadFileName");
              hotelimage.setImageName(request.getParameter("oldUploadFileName"));
              String savePath = request.getSession().getServletContext().getRealPath("/upload");
              try {
                     hotelimage.setImagePath(URLEncoder.encode( image,"utf-8"));
                     FileUtils.copyFile(new File(savePath+"/temp/" + hotelimage.getImagePath()), new File(savePath+"/hotel/" + hotelimage.getImagePath()));
                 } catch (Exception e) {
                     e.printStackTrace();
                 }
             HttpSession session = request.getSession();
             //验证用户是否已登录
             if(session.getAttribute("AdminSession")!=null){
                 UserInfo userInfo = (UserInfo) session.getAttribute("AdminSession");
                 if(userInfo!=null){
                     hotelimage.setUploadUserId(Integer.parseInt(userInfo.getId()));
                 }
             }
             else{
                 hotelimage.setUploadUserId(0);
             }

             hotelimage.setHotelId(hotelId);
             hotelimage.setImageType(imageType);
             hotelimage.setImageDesc(content);
             int t = hotelImageService.addHotelImageService(hotelimage);
             if(t<=0){
                 return "error";
             }
             hotelId="0";
             imageType="0";
             imageTitle="";
         }
         catch(Exception ex){
             ex.printStackTrace();
             return "error";
         }


         return "success";
     }





     public String goEditImage(){
         String id = request.getParameter("id");
         HotelImage image = hotelImageService.getImageByID(Long.valueOf(id));
         List<HotelInfo>  hotels = hotelImageService.queryHotelListService(hotelInfo);
         request.setAttribute("hotels", hotels);
         request.setAttribute("image", image);
         if("audit".equals(request.getParameter("type"))){
             return "audit";
         }
         return "success";
     }

     public String editImage() {
         try{
             hotelimage = new HotelImage();
             hotelimage.setImageTitle(imageTitle);
             String image = request.getParameter("uploadFileName");
             hotelimage.setImageName(request.getParameter("oldUploadFileName"));
             String savePath = request.getSession().getServletContext().getRealPath("/upload");
             try {
                     hotelimage.setImagePath(URLEncoder.encode( image,"utf-8"));
                     if(!"0".equals(request.getParameter("upload"))){
                         FileUtils.copyFile(new File(savePath+"/temp/" + hotelimage.getImagePath()), new File(savePath+"/hotel/" + hotelimage.getImagePath()));
                     }
             } catch (Exception e) {
                     e.printStackTrace();
             }
             HttpSession session = request.getSession();
             //验证用户是否已登录
             if(session.getAttribute("AdminSession")!=null){
                 UserInfo userInfo = (UserInfo) session.getAttribute("AdminSession");
                 if(userInfo!=null){
                     hotelimage.setUploadUserId(Integer.parseInt(userInfo.getId()));
                 }
             }
             else{
                 hotelimage.setUploadUserId(0);
             }

             hotelimage.setHotelId(hotelId);
             hotelimage.setImageType(imageType);
             hotelimage.setImageDesc(content);
             hotelimage.setImageId(imageId);
             int t = hotelImageService.updateImage(hotelimage);
             if(t<=0){
                 return "error";
             }
             hotelId="0";
             imageType="0";
             imageTitle="";
         }
         catch(Exception ex){
             ex.printStackTrace();
             return "error";
         }

         return ActionSupport.SUCCESS;
     }


     public String auditImage() {
         HttpServletRequest request = ServletActionContext.getRequest();
         HttpSession session = request.getSession();
         UserInfo userInfo = (UserInfo) session.getAttribute("AdminSession");
         HotelImage image =new HotelImage();
         image.setImageId(imageId);
         image.setAudit_flag(request.getParameter("audit_flag"));
         image.setAudit_fault_reson(request.getParameter("audit_fault_reason"));
         image.setAudit_user(Integer.valueOf(userInfo.getId()));
         hotelImageService.auditImage(image);
         return ActionSupport.SUCCESS;

     }

     public String deleteImage(){
         HttpServletRequest request = ServletActionContext.getRequest();
         String [] ids = request.getParameterValues("checkedIds");
         String newsIds = StringUtils.join(ids, ",");
         hotelImageService.deleteImageByIds(newsIds);
         return "success";
     }

     public String getGallerialImage(){
         HotelImage image = new HotelImage();
         image.setStartRow(1);
         image.setPageSize(20);
         String path = request.getContextPath() +"/upload/hotel/";
         List<HotelImage> list = hotelImageService.getImageList(image);
         List<GalleriaImage> galleriaImages  = new ArrayList<GalleriaImage>();
         GalleriaImage galleriaImage = null;
         for(int i=0;i<list.size();i++){
             galleriaImage = new GalleriaImage();
             image = list.get(i);
             galleriaImage.setDescription(image.getImageDesc());
             galleriaImage.setImage(path+image.getImagePath());
             galleriaImage.setTitle(image.getImageTitle());
             galleriaImages.add(galleriaImage);
         }

         JSONArray jo = JSONArray.fromObject(galleriaImages);
         json = jo.toString();
         return "success";
     }
 }

 //getter  setter略