Java：如何用nio路径规范化路径？

Question

（还要注意，我处理的是其他系统的抽象路径，这与任何本地文件系统无关）

我想要的行为的进一步示例：

 - "/foo" -> "/foo"
 - "//foo/" -> "/foo"
 - "foo/" -> "/foo"
 - "foo/bar" -> "/foo/bar"
 - "foo/bar/../baz" -> "/foo/baz"
 - "foo//bar" -> "/foo/bar"

Answer 1

public final class Foo
{
    private static final List<String> INPUTS = Arrays.asList(
        "/foo", "//foo", "foo/", "foo/bar", "foo/bar/../baz", "foo//bar"
    );

    public static void main(final String... args)
    {
        Path path;

        for (final String input: INPUTS) {
            path = Paths.get("/", input).normalize();
            System.out.printf("%s -> %s\n", input, path);
        }
    }
}

/foo -> /foo
//foo -> /foo
foo/ -> /foo
foo/bar -> /foo/bar
foo/bar/../baz -> /foo/baz
foo//bar -> /foo/bar

try (
    final FileSystem fs = MemoryFileSystem.newLinux().build();
) {
    // path operations here
}