Business Delegate will communicate between service layer(where all business logic written) and action class in struts.

Delegate method should not contain any logic or anything, will only delegate between action class and service layer.

Ex:-

public String TestBD() throws Exception {
try {
TestBO tbo= new TestBO();
return tbo.getTestString();
} catch (Exception e) {
e.getMessage();
}
}

where getTestString() method contains some business logic to get the string value and will pass the string to action class.

Action Form is normal FormBean,
DynaAction form is the configured in struts.config.xml its create form properties dynamically.But does not allow the Validations.
DynavalidatorForm create the form properties automatically and also allow to validate.

Hi NM,In struts Model is used to handle business logic part,View is used to handle the output and controller is used to handle the request.

Its give you IP address of remote system who is using your application

I have solved my problem

yes we can use multiple comfiguration file

<servlet>


<servlet-name>action</servlet-name>


<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>


<init-param>


<param-name>config</param-name>


<param-value>/WEB-INF/struts-config.xml,/WEB-INF/struts-config2.xml</param-value>
<servlet-mapping>


<servlet-name>action</servlet-name>


<url-pattern>*.do</url-pattern>


</servlet-mapping>

</init-param>