Grails/Groovy文件删除

Question

我很难删除一个文件。我会告诉你什么是有效的，如果这是可以接受的，你可以作为法官。

class StupidService{
def doThings(){
  def tmpDirString = "dumpit"
  def currentDir = new File("../${tempDirString}")
  currentDir.eachFile(FileType.FILES){
    def f=it
    def answer = SuperComplicatedService.doStuff(f)
    //this works, now I need to move the file to the "done" folder
    File dir = new File("../${tempDirString}/done");  
    def endupFile = new File("../${tempDirString}/done/${f.name}")
    FileUtils.copyFile(f, endupFile)
    //this works; the file is copied to where I want it successfully; now I just need to delete the initial file.
    def thisIsAJoke=0
    while(f.delete()==false){
      println "This is not a joke: ${thisIsAJoke}"
      thisIsAJoke++
    }
  }
}
}

因此，这会打印出40k到150k行的"这不是玩笑：64457"等，然后最终删除该文件。

发生了什么事？

Answer 1

SuperComplicatedService.doStuff(f)做什么？如果它打开了文件，请确保在返回之前将其关闭。否则，在垃圾收集器收集引用该文件的对象之前，您将无法删除该文件

看到我可以'；t删除java 中的文件

Answer 2

Groovy/Grails 中删除文件和文件夹的代码

    String filePath = "c:/dir"+"/"+"carpeta"+"/"+documentoInstance.nombreArchivo
    String folderPath = "c:/dir"+"/"+"carpeta"+"/"
    boolean fileSuccessfullyDeleted =  new File(filePath).delete()
    boolean folderSuccessDeleted = new File(folderPath).deleteDir()
    if(fileSuccessfullyDeleted && folderSuccessDeleted){
        documentoInstance.delete flush:true
    }
    else{
        flash.error = "Archivo no borrado."
        return
    }