英文:
Java Desktop.open() never finish
问题
以下是翻译好的内容：
这里有一个永远不会结束的代码示例。我所做的就是使用 Desktop.open(file) 打开一个文件。在我关闭打开的文件之后，程序就会关闭（例如弹出的文本编辑器或 Excel 文件）。
public static void main(String[] args) {
File file = new File("TextFile1.log");
if (file.exists()) {
Thread thread = new Thread() {
@Override
public void run() {
Desktop desktop = Desktop.getDesktop();
System.out.println("使用桌面协议打开 " + desktop.toString());
try {
// Runtime.getRuntime().exec("gedit " + file); // 这行代码可以正常工作，但与 Linux 相关
desktop.browse(file.toURI());
} catch (IOException ex) {
ex.printStackTrace();
}
System.out.println("已打开文件 " + file.getName());
}
};
thread.start();
} else {
System.out.println("文件不存在！");
}
try {
Thread.sleep(1000L); // 为了确保在文件实际打开之前不会退出
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("程序结束。");
System.exit(0);
}
我得到的输出如下：
使用桌面协议打开 java.awt.Desktop@7a8afb69
已打开文件 TextFile1.log
程序结束。
过了一段时间，我决定关闭已打开的文件，输出中还会出现以下内容：
进程以退出代码 0 结束
如何在不阻止退出且支持跨平台的情况下打开文件呢？我在 Windows 上也注意到了这一点。全部基于 Java 8。
英文:
Here is a code example that will never finish. All I do is open a file with Desktop.open(file). Program closes after I close opened file (for example text editor that pops up, or excel file).
public static void main(String[] args) {
File file = new File("TextFile1.log");
if (file.exists()) {
Thread thread = new Thread() {
@Override
public void run() {
Desktop desktop = Desktop.getDesktop();
System.out.println("opening using desktop protocol " + desktop.toString());
try {
// Runtime.getRuntime().exec("gedit "+file);//this line of code works fine, but it is linux related
desktop.browse(file.toURI());//
} catch (IOException ex) {
ex.printStackTrace();
}
System.out.println("File opened " + file.getName());
}
};
thread.start();
} else {
System.out.println("File does not exists!");
}
try {
Thread.sleep(1000L);//just so we do not exit before file is actually opened
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("End of program.");
System.exit(0);
}
Output that I get:
opening using desktop protocol java.awt.Desktop@7a8afb69
File opened TextFile1.log
End of program.
After some time, I decide to close opened file and I get below line in output as well:
Process finished with exit code 0
How can I open file without blocking exit and that cross platform is supported?
I noticed this on Windows as well. All on Java 8.
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