Java 尼奥。空路径

Question

谁能告诉我 Paths.get("") 指向哪里？

这是代码和输出。

public static void main(String[] args) {
    Path path = Paths.get("");
    System.out.printf("`%s`%n", path);
    System.out.printf("`%s`%n", path.normalize());
    System.out.println(Files.exists(path));
    System.out.println(Files.isExecutable(path));
}

``
``
true
true

Answer 1

System.out.println(Paths.get("").toAbsolutePath());

/Users/andrew/workspace/scratch

看起来是当前工作目录。在我的机器上，Java 报告它是可执行的，因为目录上的“x”标志对当前用户而言是正确的。

来自javadocs :

This method checks that a file exists and that this Java virtual machine has appropriate privileges to execute the file. The semantics may differ when checking access to a directory. For example, on UNIX systems, checking for execute access checks that the Java virtual machine has permission to search the directory in order to access file or subdirectories.