@Result at class level and method level

Question

I'm following the Struts 2 Hello World Annotation Example tutorial by Mkyong:

@Namespace("/User")
@ResultPath(value="/")
@Action(value="/welcome", 
      results={@Result(name="success", location="pages/welcome_user.jsp")})
public class WelcomeUserAction extends ActionSupport {

    public String execute(){
        return SUCCESS;
    }
}

Accessing the URL http://localhost:8080/project_name/User/welcome works fine.

Now I'm trying to move the @Action (and hence @Result) annotation from class level to method level:

@Namespace("/User")
@ResultPath(value="/")
public class WelcomeUserAction extends ActionSupport {

    @Action(value="/welcome", 
          results={@Result(name="success", location="pages/welcome_user.jsp")})     
    public String execute(){
        return SUCCESS;
    }
}

But after doing this, I get the 404 error:

/project_name/pages/welcome_user.jsp is not found.

My JSPs are under

/WebContent/User/pages  

Why is this happening ?

Answer 1

Since Struts2 will look for your JSPs in

WebContent/@ResultPath/@Namespace/@Result

Instead of doing

@ResultPath("/")/@Namespace("/User")/@Result("pages/welcome_user.jsp")

you could move your JSPs from

WebContent/User/pages/welcome_user.jsp

to

WebContent/pages/User/welcome_user.jsp

and then using

@ResultPath("/pages")/@Namespace("/User")/@Result("welcome_user.jsp")

At this point, both the following configurations should work:

With @Action at class level:

@ResultPath(value="/pages")
@Namespace("/User")
@Action(value="/welcome", results={@Result(name="success", location="welcome_user.jsp")})
public class WelcomeUserAction extends ActionSupport {

    public String execute(){
        return SUCCESS;
    }
}

With @Action at method level:

@ResultPath(value="/pages")
@Namespace("/User")
public class WelcomeUserAction extends ActionSupport {

    @Action(value="/welcome", results={@Result(name="success", location="welcome_user.jsp")})
    public String execute(){
        return SUCCESS;
    }
}

I don't know why Mkyong's example works only with annotations at class level, and I'm waiting for someone more expert to fullfil our curiosity; meanwhile, this should be what you need.