Question

我正在尝试制作一个可以通过网址识别的图像主机。对于GET方法，我这样做：

 @Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String filename = request.getParameter("id");
    String path = request.getServletContext().getRealPath("/uploaded");
    File folder=new File(path);
    File file = new File(folder,filename);
    if (!file.exists()) 
        throw new ServletException("file not found");

    response.setContentLength((int)file.length());
    OutputStream out = response.getOutputStream();
    FileInputStream in = new FileInputStream(file);
    byte[] buffer = new byte[1024];
    int length;
    while ((length = in.read(buffer)) > 0) {
        out.write(buffer, 0, length);
    }
    in.close();
    out.flush();
}

如果我在我的开发环境（Netbeans + Glassifh）中尝试顺利进行，那么当我在Amazon Web Services中部署它时，响应是这样的：�bc"IdIX�P�F��IJ/)�

你能帮帮我吗？谢谢！

Answer 1

尝试设置适当的Content-Type响应

e.g。对于JPEG图像：

response.setContentType("image/jpeg");

java servlet：流图像

1 个答案: