Methodology for saving field data between application sessions

Question

I'm working on an application that requires I save a field between application uses, so that I can retrieve the data during the next use (ex. save username when logged in, retrieve it and pre-populate username field when application is next launched). I've looked around and found a couple ways to accomplish this goal, such as encryption & saving in a file on the local machine, and saving the value in the Windows registry. Are any of these methods better than others for accomplishing this goal? Any other suggestions?

Answer 1

您可以使用Java Preferences API存储它，它将以系统特定的方式存储少量数据。在Windows上，我相信它会将其存储在注册表中，但在Mac或Linux上，它将以适合这些系统的方式存储。

对于当前用户，数据存储在特定于您的类包的键和您选择的字符串下。有关详细信息，请参阅Preferences API Overview。