how to read a file from a lift webapp

问题

I want to read xml file in my lift app:

val data = XML.load(new java.io.InputStreamReader(new java.io.FileInputStream(filename), encoding));

However, I am getting java.io.FileNotFoundException. where should I put the file, and what is the correct path from my scala code?

BTW - I am using embedded jetty for my testing, although I need a solution for dev env and production.

回答1:

There might be better solution for other paths but there is

var LiftRules.getResource : (String) ⇒ Box[URL]

or

def LiftRules.doWithResource(name: String)(f: (InputStream) ⇒ T): Box[T]

which usually point to files in src/main/resources/.

There is also

def LiftRules.loadResourceAsXml(name: String): Box[NodeSeq]

which may be the method you are looking for.

回答2:

To solve this problem in the general case, new File("delme").createNewFile() and see where it ends up.

来源：https://stackoverflow.com/questions/7546887/how-to-read-a-file-from-a-lift-webapp