Hi All,
I have been playing with Struts 2.0 sample application, struts-blank, and
integrates it with Spring 2.x. So far, I have not been having great success
with it.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I have followed all the steps needed to integrate Struts 2.0 with Spring 2.0.
Here is what I have done so far:
1) Included struts2-spring-plugin-2.0.6.jar, spring.jar,
struts2-core-2.0.6.jar and the dependent jars.
2) Modified the example.xml to include spring object factory:
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd";>
<struts>
<constant name="struts.objectFactory" value="spring" />
<package name="example" namespace="/example" extends="struts-default">
<default-interceptor-ref name="defaultStack"/>
<action name="helloWorld" class="helloWorld">
<result>/example/HelloWorld.jsp</result>
</action>
<action name="Login_*" method="{1}" class="example.Login">
<result name="input">/example/Login.jsp</result>
<result type="redirect-action">Menu</result>
</action>
<action name="Menu" class="Menu">
<result>/example/Menu.jsp</result>
</action>
<action name="*" class="example.ExampleSupport">
<result>/example/{1}.jsp</result>
</action>
<!-- Add actions here -->
</package>
</struts>
3) I have edited the spring applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "
http://www.springframework.org/dtd/spring-beans.dtd";>
<beans default-autowire="autodetect">
<!-- =============================== Interceptors
================================= -->
<bean id="timeLoggingAdvice" class="advice.TimeLoggingInterceptor"/>
<!-- =============================== Advisor
====================================== -->
<bean id="timeLoggingAdvisor" class="
org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
<property name="mappedNames">
<list>
<value>execute</value>
</list>
</property>
<property name="advice">
<ref bean="timeLoggingAdvice"/>
</property>
</bean>
<!-- ============================== Spring Beans
================================= -->
<bean id="helloWorld" class="example.HelloWorld" singleton="false"/>
<bean id="Menu" class="
org.springframework.aop.framework.ProxyFactoryBean">
<property name="proxyInterfaces">
<value>example.IMenu</value>
</property>
<property name="interceptorNames">
<list>
<value>timeLoggingAdvisor</value>
</list>
</property>
<property name="target">
<ref local="MenuTarget"/>
</property>
</bean>
<bean id="MenuTarget" class="example.Menu" singleton="false"/>
</beans>
4) Implemented ModelDriven, Preparable and SessionAware interfaces in
Menu.java:
package example;
import java.util.Map;
import org.apache.struts2.interceptor.SessionAware;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.Preparable;
/**
* <code>Set welcome message.</code>
*/
public class Menu extends ExampleSupport implements IMenu, ModelDriven,
Preparable, SessionAware {
private Map _session;
private User user;
public String execute() throws Exception {
return SUCCESS;
}
public Object getModel() {
return user;
}
public void prepare() throws Exception {
if (getSession().get("user") != null) {
user = (User) getSession().get("user");
} else {
user = new User();
}
}
public void setSession(Map session) {
_session = session;
}
public Map getSession() {
return _session;
}
}
When I let Spring manages the creation of objects, the methods for the
implemented interfaces such as getModel() and prepare() are not invoked. If
I change the class="Menu" to class="example.Menu", the interfaces methods
were invoked since I am not letting spring manages object creation.
Could someone let me know what I may have done wrong? How can I use Spring
and Struts at the same time without losing either functionality?
Any help is greatly appreciated.
Thanks!
Lee
