从另一个目录读取.txt文件 [英] Reading .txt file from another directory

问题描述

我正在运行的代码在 / Test1 / Example 中。如果我需要在 / Test1 中读取一个.txt文件，我该如何让Java在目录树中回到1级，然后阅读我的.txt文件。 >

我已经搜索/谷歌搜索，还没有找到一种方法来读取不同位置的文件。

我我在位于/Test1/Test2/testing.htm的.htm文件中运行一个java脚本。它在哪里说脚本 src =。我将把它从我的文件中找到，它位于 /Test1/example.txt 。

解决方案

在Java中，您可以使用getParentFile（）遍历树。所以你在/ Test1 / Example目录中启动你的程序。并且您要将新文件写入/Test1/Example.txt

 文件currentDir = new File（。）; 
文件parentDir = currentDir.getParentFile（）; 
文件newFile = new File（parentDir，Example.txt）;; 
  

显然有多种方法可以实现。

The code I am running is in /Test1/Example. If I need to read a .txt file in /Test1 how do I get Java to go back 1 level in the directory tree, and then read my .txt file

I have searched/googled and have not been able to find a way to read files in a different location.

I am running a java script in an .htm file located at /Test1/Test2/testing.htm. Where it says script src=" ". What would I put in the quotations to have it read from my file located at /Test1/example.txt.

解决方案

In Java you can use getParentFile() to traverse up the tree. So you started your program in /Test1/Example directory. And you want to write your new file as /Test1/Example.txt

    File currentDir = new File(".");
    File parentDir = currentDir.getParentFile();
    File newFile = new File(parentDir,"Example.txt");;

Obviously there are multiple ways to do this.

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