对已经存在的action，还可以写一个实体类来继承它，如编写了如下action

@ActionAnnotation(alias="user",path="/hr/u")
public class UserAction extends Action
{
	public void m1()
	{
		out.print("user m1");
	}
	
	@ActionAnnotation(path="/info/2")
	public void m2()
	{
		out.print("user m222");
	}
}

可以继承如下

public class SubUserAction extends UserAction
{
	public void su()
	{
		out.print("SubUserAction su");
	}

	@Override
	public void m1() {
		super.m1();
	}

	@Override
	public void m2() {
		super.m2();
	}
}

访问如下

http://localhost/demo/subuseraction/su

输出

SubUserAction su