问题描述
我正在使用 Ok.sendFile 从服务器下载文件
I'm using Ok.sendFile to download a file from the server.
要使其正常工作，我需要在服务器的本地文件系统中创建文件.
For this to work I need to create the file in the local file system of the server.
但是，由于服务器本身没有使用文件，并且根据用户请求创建了一个新文件，因此我想在下载操作完成后删除该文件.
However, since the server has no use for the file itself and a new file is created per user-request, I'd like to delete the file after the download operation completed.
考虑到我已经完成了操作并返回了结果，我该怎么做?
How can I do this, considering I have already completed my action and returned a Result?
def index = Action {
val fileToServe = generateFile("fileToServe.pdf")
Ok.sendFile(new java.io.File(fileToServe))}
// How can I "clean-up" fileToServe.pdf after the d/l completes?
推荐答案
我建议您使用play.api.libs.Files.TemporaryFile，以便可以使用Ok.sendFile方法的onClose自变量.
I recommend you to use play.api.libs.Files.TemporaryFile, so that you can use onClose argument of the Ok.sendFile method.
val fileToServe = TemporaryFile(new File("/tmp/" + tmpname))
Ok.sendFile(fileToServe.file, onClose = () => { fileToServe.clean })
这篇关于在Play Framework中发送文件后进行清理的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！