我想要从数据库中读取图片,然后返回到页面。代码如下:
String imgId = this.getPara("imgId"); logger.debug("imgId={}", imgId); HttpServletResponse response = this.getResponse(); response.setContentType("image/jpeg"); ServletOutputStream outputStream = null; try { outputStream = response.getOutputStream(); byte[] img = termImgService.getImgById(imgId); outputStream.write(img); outputStream.flush(); } catch (IOException e) { logger.error("查询图片方法异常!", e); }finally{ if (null != outputStream) { try { outputStream.close(); renderNull(); } catch (IOException e) { logger.error("查询图片方法异常!", e); } } }
已经加上了renderNull(),还是报错了。
项目:JFinal