打开/保存为...对话框不显示 [英] Open/Save as... dialog box not showing

问题描述

我的服务器上有一个PDF文件，我需要用户从客户端下载。

使用Spring Framework，我使用javax.servlet.http。 HttpServletResponse创建正确的响应和相应的标题：

  response.setHeader（Expires，-1）; 
 response.setHeader（Cache-Control，must-revalidate，post-check = 0，pre-check = 0）; 
 response.setHeader（Pragma，public）; 
 response.setContentType（application / pdf）; 
 response.setHeader（Content-Disposition，attachment; filename =content.pdf）; 
 response.setContentLength（content.size（））; 
  

然后我使用ServletOutputStream编写内容：

  ServletOutputStream os; 
 try {
 os = response.getOutputStream（）; 
 os.write（（（ByteArrayOutputStream）baos）.toByteArray（））; 
 baos .close（）; 
 os.flush（）; 
 os.close（）; 
} catch（IOException e1）{
 // TODO自动生成的catch块
 e1.printStackTrace（）; 
} 
  

在客户端，我收到HTTP代码200，并接收正确的响应正文，使用PDF文件，但另存为...弹出窗口没有出现。

有什么理由可能导致此问题的Header配置或可能在其他地方？

谢谢。

解决方案

当我运行这个代码的问题凸轮e在

  response.setHeader（Content-Disposition，attachment; filename =content.pdf）; 
  

定义文件名

尝试： / p>

  response.setHeader（Content-Disposition，attachment; filename =+content.pdf）; 
  

它将打开对话框，并在点击保存按钮时保存为选项

I have a PDF file on my server that I need the user to download from the client side.

Using Spring Framework, I use javax.servlet.http.HttpServletResponse to create the correct response and corresponding header:

response.setHeader("Expires", "-1");
response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
response.setHeader("Pragma", "public");
response.setContentType("application/pdf");
response.setHeader("Content-Disposition", "attachment;filename="content.pdf");
response.setContentLength(content.size());

Then I use the ServletOutputStream to write the content:

ServletOutputStream os;
try {
    os = response.getOutputStream();
    os.write(((ByteArrayOutputStream)baos).toByteArray());
    baos.close();
    os.flush();
    os.close();
} catch (IOException e1) {
    // TODO Auto-generated catch block
    e1.printStackTrace();
}

On the client side, I receive HTTP code 200 and receive the correct response body, with the PDF file, but the 'Save As...' pop-up did not appear.

Is there any reason on the Header configuration that could lead to this problem or could it be somewhere else?

Thank you.

解决方案

When I ran this code the problem came in

response.setHeader("Content-Disposition", "attachment;filename="content.pdf");

for defining filename

Try:

response.setHeader("Content-Disposition", "attachment;filename="+"content.pdf");

It will open up dialog box and will give you save as option when clicking save button

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