Controller 返回圖片請求

jsp代碼

    <img src="getBiImg" width="100%"/> //getBiImg是請求url

 

controller代碼

    @RequestMapping(value="/getBiImg")
    public void getBiImg(HttpServletRequest request, HttpServletResponse response) throws IOException {
         response.setHeader("Pragma", "no-cache");  
            response.setHeader("Cache-Control", "no-cache");  
            response.setDateHeader("Expires", 0);  
            response.setContentType("image/jpeg");  
            File file=biReportService.getImgMark();//獲取圖片這個文件
            InputStream is=new FileInputStream(file);
            BufferedImage bi=ImageIO.read(is);
            ImageIO.write(bi, "JPEG", response.getOutputStream());
    }