java path.resolve,在哪里使用java.nio.file.Path类的resolve（）和relativize（）方法？

Path p1 = Paths.get("/Users/jack/Documents/text1.txt");

Path p2 = Paths.get("/Users/jack/text2.txt");

Path result1 = p1.resolve(p2);

Path result2 = p1.relativize(p2);

System.out.println("result1: "+result1);

System.out.println("result2: "+result2);

OUTPUT

result1: /Users/jack/text2.txt

result2: ../../text2.txt

I cannot understand how resolve() and relativize() works?

What is the actual use of result1 and result2?

解决方案

These are the code snippets from my code base that help you to understand the use of the resolve() method

private File initUsersText() throws Exception

{

Path dir = testdir.getPath().toRealPath();

FS.ensureDirExists(dir.toFile());

File users = dir.resolve("users.txt").toFile();

writeUser( users );

return users;

}

private File initUsersText() throws Exception

{

Path dir = testdir.getPath().toRealPath();

FS.ensureDirExists(dir.toFile());

File users = dir.resolve("users.txt").toFile();

writeUser( users );

return users;

}

And these are the examples of the use of relativize()

public ScopePath pathToClassName(Path file) {

if (!isValidClass(file))

return null;

Path relativePath = root.relativize(root.resolve(file));

String withoutExtension = removeExtension(relativePath.toString());

return new ScopePath(withoutExtension.replace(File.separator, "."));

}

private String getRelativePath(Path p) {

String relativePath = packageDir.relativize(p)

.toString();

if (File.separator.equals("\\")) {

relativePath = relativePath.replace("\\", "/");

}

return relativePath;

}