如何使用java阻止用户访问目录？

Question

是否可以使用java修改目录权限，以便任何人都无法访问该目录中的内容。

Answer 1

您可以在File对象上使用此方法

• boolean setWritable(boolean writable, boolean ownerOnly)
• boolean setReadable(boolean readable, boolean ownerOnly)
• boolean setExecutable(boolean executable,boolean ownerOnly)

File dir = new File("my directory");
dir.mkdir();

// Make it not readable, writable and executable for anyone
dir.setExecutable(false, false);
dir.setReadable(false, false);
dir.setWritable(false, false);

// Make it readable, writable and executable for the owner only (see
// second parameter "ownerOnly" to these calls)
dir.setExecutable(true, true);
dir.setReadable(true, true);
dir.setWritable(true, true);

Java NIO API具有更多细粒度控件来执行相同操作，例如

• Path setPosixFilePermissions(Path path, Set<PosixFilePermission> perms)