将目录设置为文件中的路径

发布于 2024-10-17 10:18:45 字数 214 浏览 2 评论 0原文

我只想将目录设置为我之前在文件中写入的路径。

因此我使用 :

fileChooser.setCurrentDirectory(new File("path.txt"));

并在 path.txt 中给出了路径。但不幸的是这不起作用，我想知道为什么：P。我想我的 setCurrentDic 完全错了..

原文

I just want to set the directory to a path I have written in a file before.

Therefore I used :

fileChooser.setCurrentDirectory(new File("path.txt"));

and in path.txt the path is given. But unfortunately this does not work out and I wonder why :P.
I think I got it all wrong with the setCurrentDic..

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献世佛 2024-10-24 10:18:45

setCurrentDirectory 将表示目录的文件作为参数。不是写入路径的文本文件。

要执行您想要的操作，您必须读取文件“path.txt”，使用您刚刚读取的内容创建一个 File 对象，并将该文件传递给 setCurrentDirectory ：

String pathWrittenInTextFile = readFileAsString(new File("path.txt"));
File theDirectory = new File(pathWrittenInTextFile);
fileChooser.setCurrentDirectory(theDirectory);

setCurrentDirectory takes a file representing a directory as parameter. Not a text file where a path is written.

To do what you want, you have to read the file "path.txt", create a File object with the contents that you just read, and pass this file to setCurrentDirectory :

String pathWrittenInTextFile = readFileAsString(new File("path.txt"));
File theDirectory = new File(pathWrittenInTextFile);
fileChooser.setCurrentDirectory(theDirectory);

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坚持沉默 2024-10-24 10:18:45

您必须阅读path.txt的内容。最简单的方法是通过 commons-io：

String fileContents = IOUtils.toString(new FileInputStream("path.txt"));
File dir = new File(fileContents);

您还可以使用 FileUtils.readFileToString(.. ）

You have to read the contents of path.txt. Thea easiest way is through commons-io:

String fileContents = IOUtils.toString(new FileInputStream("path.txt"));
File dir = new File(fileContents);

You can also use FileUtils.readFileToString(..)

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深海夜未眠 2024-10-24 10:18:45

JFileChooser chooser = new JFileChooser();

try {
    // Create a File object containing the canonical path of the
    // desired directory
    File f = new File(new File(".").getCanonicalPath());

    // Set the current directory
    chooser.setCurrentDirectory(f);
} catch (IOException e) {
}

JFileChooser chooser = new JFileChooser();

try {
    // Create a File object containing the canonical path of the
    // desired directory
    File f = new File(new File(".").getCanonicalPath());

    // Set the current directory
    chooser.setCurrentDirectory(f);
} catch (IOException e) {
}

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