Java 获取给定文件夹下文件的所有绝对路径

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时间:2020-08-12 01:40:53  来源:igfitidea点击:

get all absolute paths of files under a given folder

javalistjava-7apache-commonsabsolute-path

提问by user1025852

I need to hold in memory all absolute paths of file names under a given directory.

我需要在内存中保存给定目录下文件名的所有绝对路径。

myDirectory.list() - retrieves String[] of file names only (without their absolute paths).

myDirectory.list() - 仅检索文件名的 String[](没有它们的绝对路径)。

Don't want to use File Object since it consumes more memory.

不想使用文件对象,因为它消耗更多内存。

Last thing - I can use apache collections etc. (but didn't find anything useful for that).

最后一件事 - 我可以使用 apache 集合等(但没有找到任何有用的东西)。

回答by Sharon J D Dorot

Doesn't myDirectoryholds the directory of all those files? If so, just combine the path in myDirectorywith each of the cells in the array myDirectory.list()returns.

myDirectory包含所有这些文件的目录吗?如果是这样,只需将路径myDirectory与数组myDirectory.list()返回中的每个单元格组合起来。

回答by victorantunes

String directory = <your_directory>;
File[] files = new File(directory).listFiles();
for(File file : files){
  if(file.isFile()){
    System.out.println(file.getAbsolutePath());
  }
}

This works, and I gotta say I'm confused when you say you don't wanna use File objects, but whatever works, I guess.

这行得通,当你说你不想使用 File 对象时,我不得不说我很困惑,但我想不管怎样都行。