Question

If I have a common static method in a class named Language.CheckLanguage(), and I want all action class execute() method will call CheckLanguage() like this

public String execute(){
  Language.CheckLanguage();
  // DO Business logic...
  Return Action.SUCCESS;
}

Or any other convenient way?

Answer 1

Do it in a base Action, and extend it from any Action.

Then call super() as first row of every execute().

But, if you want it to be executed for every method, not only execute(), then you should write an Interceptor.