java:单击按钮打开文件夹 [英] java: Open folder on button click

问题描述

在java中，我们如何通过单击按钮为用户打开单独文件夹(例如c:)，例如在磁盘上找到此文件"或打开包含文件夹"的方式当我们下载文件并且我们想知道它的保存位置时会这样做.目标是节省用户打开浏览器并在磁盘上定位文件的时间.谢谢(下图是firefox所做的一个例子)

In java, how can we open a separate folder (e.g. c:) for user on click of a button, e.g like the way " locate this file on disk" or "open containing folder" does when we download a file and we want to know where it was saved. The goal is to save user's time to open a browser and locate the file on disk. Thanks ( image below is an example from what firefox does)

我得到了答案:以下是在 Windows 7 中对我有用的方法:

I got the answer: Here is what worked for me in Windows 7:

        File foler = new File("C:\\"); // path to the directory to be opened
        Desktop desktop = null;
        if (Desktop.isDesktopSupported()) {
        desktop = Desktop.getDesktop();
        }

        try {
        desktop.open(foler);
        } catch (IOException e) {
        }

感谢@AlexS

推荐答案

我假设你有一个文件.使用 java.awt.Desktop，您可以使用以下内容:

I assume you have a file. With java.awt.Desktop you can use something like this:

public static void openContaiingFolder(File file) {
    String absoluteFilePath = file.getAbsolutePath();
    File folder = new File(absoluteFilePath.substring(0, absoluteFilePath.lastIndexOf(File.separator)));
    openFolder(folder);
}

public static void openFolder(File folder) {
    if (Desktop.isDesktopSupported()) {
        Desktop.getDesktop().open(folder);
    }
}

请注意，如果您使用不是目录的文件调用此方法，至少 Windows 将尝试使用该文件类型的默认程序打开该文件.

Be awrae that if you call this with a File that is no directory at least Windows will try to open the file with the default program for the filetype.

但我不知道在哪些平台上支持.

But I don't know on which platforms this is supported.

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