解决上载图片打不开的有关问题
解决下载图片打不开的问题
String fileName=request.getParameter("fileName"); //图片的链接
//直接通过URL去读取图片
URL url=new URL(fileName);
URLConnection conn= url.openConnection();
InputStream stream=conn.getInputStream();
//获取image
BufferedImage image=ImageIO.read(stream);
ImageIO.write(image,"JPEG",response.getOutputStream());
response.addHeader("Content-Disposition", "attachment;filename=" + "图片名字");
//以流的形式输出
response.setContentType("application/octet-stream");