THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- Create an Interceptor class by implementing the
com.opensymphony.xwork.interceptor.Interceptorinterface (bundled in thexwork-1.1.jarprovided with the framework distribution). - Declare the class in your XML configuration file (
actionstruts.xml) using the element<interceptor />nested within<interceptors />. - Create stacks of Interceptors, using the
<interceptor-stack />element (optional). - Determine which Interceptors are used by which mapping, using
<interceptor-ref />or<default-interceptor-ref />. The<interceptor-ref>defines the interceptors to be used in a specific action. The<default-interceptor-ref />determines the default interceptor stack to be used by all actions that do not specify their own<interceptor-ref />.
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package tutorial;
import java.util.Calendar;
import com.opensymphony.xwork.interceptor.Interceptor;
import com.opensymphony.xwork.ActionInvocation;
public class GreetingInterceptor implements Interceptor {
public void init() { }
public void destroy() { }
public String intercept(ActionInvocation invocation) throws Exception {
Calendar calendar = Calendar.getInstance();
int hour = calendar.get(Calendar.HOUR_OF_DAY);
String greeting = (hour < 6) ? "Good evening" :
((hour < 12) ? "Good morning":
((hour < 18) ? "Good afternoon": "Good evening"));
invocation.getInvocationContext().getSession().put("greeting", greeting);
String result = invocation.invoke();
return result;
}
}
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<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<include file="struts-default.xml" />
<package name="default" extends="struts-default">
<interceptors>
<interceptor name="greeting" class="tutorial.GreetingInterceptor" />
</interceptors>
<action name="greeting" class="tutorial.GreetingAction">
<interceptor-ref name="greeting" />
<result name="success" type="velocity">greeting.vm</result>
</action>
<!-- other action mappings -->
</package>
</struts>
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