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基于Springmvc的文件下載

基于Springmvc的文件下載

@RequestMapping(value?=?"getUeditorImg/{imgname}/{imgType}",?method?=?RequestMethod.GET)?? ????public?void?getUeditorImg(@PathVariable?String?imgname,?@PathVariable?String?imgType,?? ????????????HttpServletResponse?response)?{?? ????????if?("null".equals(imgname)?||?"null".equals(imgType)?||?StringUtils.isBlank(imgname)?? ????????????????||?StringUtils.isNotBlank(imgType))?{?? ????????????return;?? ????????}?? ????????BufferedInputStream?in?=?null;?? ????????BufferedOutputStream?out?=?null;?? ????????try?{?? ????????????DateFormat?df?=?new?SimpleDateFormat("yyyyMMdd");?? ????????????String?timeStr?=?imgname.substring(0,?imgname.length()?-?6);?? ????????????String?dateFile?=?df.format(new?Date(Long.parseLong(timeStr)));?? ????????????File?file?=?new?File(UEDITOR_IMG_PATH?+?"/"?+?dateFile?+?"/"?+?imgname?+?"."?+?imgType);?? ????????????in?=?new?BufferedInputStream(new?FileInputStream(file));?? ????????????out?=?new?BufferedOutputStream(response.getOutputStream());?? ????????????response.setContentType(new?MimetypesFileTypeMap().getContentType(file));//?設(shè)置response內(nèi)容的類型?? ????????????response.setHeader("Content-disposition",?"attachment;filename="?+?imgname?+?"."?+?imgType);//?設(shè)置頭部信息?? ????????????byte[]?buffer?=?new?byte[10240];?? ????????????int?length?=?0;?? ????????????while?((length?=?in.read(buffer))?>?0)?{?? ????????????????out.write(buffer,?0,?length);?? ????????????}?? ????????????out.flush();?? ????????}?catch?(IOException?e)?{?? ????????????getLogger().error(e.getMessage(),?e);?? ????????????writeError500(response,?e);?? ????????}?finally?{?? ????????????try?{?? ????????????????if?(in?!=?null)?{?? ????????????????????in.close();?? ????????????????}?? ????????????????if?(out?!=?null)?{?? ????????????????????out.close();?? ????????????????}?? ????????????}?catch?(IOException?e)?{?? ????????????????e.printStackTrace();?? ????????????}?? ????????}?? ????}
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