Question

我很难删除文件。我会告诉你什么是有效的，如果这是可以接受的，你可以成为法官。

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++
    }

  }
}
}

所以这打印出40k到150k行之间的“这不是一个笑话：64457”等，然后最终删除文件。

发生了什么事？

Answer 1

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

请参阅I can't delete a file in java

Answer 2

用于删除Groovy / Grails中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
    }

Grails / Groovy文件删除

2 个答案: