T5中定义系统公用变量方法

in AppModule.java

public static void contributeApplicationDefaults(
MappedConfiguration<String, String> configuration)
{
configuration.add("tutor.file-system-root", "/Users/pbeshai/tmproot/");
configuration.add("tapestry.supported-locales", "en");
configuration.add("tapestry.start-page-name", "Login");
}


And hopefully be able to inject that value into components where
necessary. Is there a more advised way of doing this?

Unfortunately, I am unable to retrieve this value in my component
(from simple lack of know-how).

I thought it might be similar to
@Inject
@Value("${tutor.file-system-root}")
private String _fileSystemRoot;

public String getFileSystemRoot() { return _fileSystemRoot; }