播放框架文件上传无此类文件异常

Question

I'm trying to implement file upload with play framework scala. This code works just fine in development(windows) but fails when deployed(Ubuntu).

     def upload = Action(parse.multipartFormData) { request =>
      request.body.file("torrentFile").map { picture =>
      import java.io.File
      val filename = picture.filename
      val contentType = picture.contentType
      println(filename)
      println(contentType)
      picture.ref.moveTo(new File("Files/ppp.rdf"))
      Ok("File uploaded")
    }.getOrElse {
      Redirect(routes.Application.index()).flashing(
        "error" -> "Missing file")
    }
}

This is the error I get when I try uploading a file

    play.api.UnexpectedException: Unexpected exception[NoSuchFileException: /tmp/playtemp5801072751187159177/multipartBody5640251320440161134asTemporaryFile -> Files/ppp.rdf]
        at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:289) ~[com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:220) ~[com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.api.GlobalSettings$class.onError(GlobalSettings.scala:160) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.core.j.JavaGlobalSettingsAdapter.play$core$j$JavaGlobalSettingsAdapter$$super$onError(JavaGlobalSettingsAdapter.scala:35) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.core.j.JavaGlobalSettingsAdapter$$anonfun$onError$2.apply(JavaGlobalSettingsAdapter.scala:35) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.core.j.JavaGlobalSettingsAdapter$$anonfun$onError$2.apply(JavaGlobalSettingsAdapter.scala:35) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at scala.Option.getOrElse(Option.scala:121) [org.scala-lang.scala-library-2.11.7.jar:na]
        at play.core.j.JavaGlobalSettingsAdapter.onError(JavaGlobalSettingsAdapter.scala:35) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:100) [com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at play.core.server.netty.PlayRequestHandler$$anonfun$2$$anonfun$apply$1.applyOrElse(PlayRequestHandler.scala:100) [com.typesafe.play.play-netty-server_2.11-2.5.10.jar:2.5.10]
Caused by: java.nio.file.NoSuchFileException: /tmp/playtemp5801072751187159177/multipartBody5640251320440161134asTemporaryFile -> Files/ppp.rdf
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86) ~[na:1.8.0_111]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[na:1.8.0_111]
        at sun.nio.fs.UnixCopyFile.move(UnixCopyFile.java:457) ~[na:1.8.0_111]
        at sun.nio.fs.UnixFileSystemProvider.move(UnixFileSystemProvider.java:262) ~[na:1.8.0_111]
        at java.nio.file.Files.move(Files.java:1395) ~[na:1.8.0_111]
        at play.api.libs.Files$TemporaryFile.moveTo(Files.scala:102) ~[com.typesafe.play.play_2.11-2.5.10.jar:2.5.10]
        at controllers.Upload$$anonfun$upload$1$$anonfun$apply$1.apply(Upload.scala:74) ~[untitled10.untitled10-1.0-sans-externalized.jar:na]
        at controllers.Upload$$anonfun$upload$1$$anonfun$apply$1.apply(Upload.scala:68) ~[untitled10.untitled10-1.0-sans-externalized.jar:na]
        at scala.Option.map(Option.scala:146) [org.scala-lang.scala-library-2.11.7.jar:na]
        at controllers.Upload$$anonfun$upload$1.apply(Upload.scala:68) ~[untitled10.untitled10-1.0-sans-externalized.jar:na]

The applications creates some files and folders when running and this currently happens so I'm sure its not Linux file permission in the directory. when I go to /tmp directory I do not see the play temp files. I'm working with play 2.5 in intellij.

Answer 1

First of all, try to give a full path instead of Files , like /var/webapps/your-app/files .

Run the app as root temporary (using sudo) and make sure that Files (/var/webapps/your-app/files) folder exists on the disk.

If the app worked as root it shows that there is something wrong about permissions. Make sure the user which the app is running by, have read/write access to /tmp and write access to Files .