Question

我正在使用JAXB来创建XML文件。我想在用户的PC上下载文件。这是我的代码，实际上是在向服务器创建文件：

OutputStream file = new FileOutputStream("E:\\"+n+".xml");
JAXBContext jaxbContext = JAXBContext.newInstance(F6005.class);
javax.xml.bind.Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
jaxbMarshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, new Boolean(true));
jaxbMarshaller.marshal(f6005, file);
getServletContext().getRequestDispatcher("/F6207done.jsp").forward(request,  response);

相反，我想在点击“下载”按钮后将文件发送到用户文件夹。我该怎么办？

Answer 1

从响应中请求OutputStream。更改内容类型并发送数据。浏览器将以所描述的格式呈现文件。

OutputStream os = response.getOutputStream();
response.setContentType("text/xml; charset=UTF-8");
jaxbMarshaller.marshal(f6005, os);

Answer 2

我找到了解决方案，万一有人需要它：

       response.setHeader("Content-Disposition", "attachment; filename="+nn+".xml");
        response.setContentType("text/xml; charset=UTF-8");
        OutputStream outStream = response.getOutputStream();
        javax.xml.bind.Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
        jaxbMarshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, new Boolean(true));
        jaxbMarshaller.marshal(f6005, outStream);

Java - 将文件发送到用户文件夹

2 个答案: