Dear,
Apologize the posting same subject, but I did not find any solution so far.
I am developing a web application based on struts 2.1.8.1+ spring 2+
hibernate 3 + tomcat 5.5. There is requisite library like
struts2-convention-plugin-2.1.8.1.jar in my classpath.
For authentication I am using struts interceptor.
Below are my configuration files.
struts.xml :=
<?xml version="1.0" encoding="UTF-8" ?>
<!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" />
<constant name="struts.devMode" value="false" />
<constant name="struts.action.extension" value="do"/>
<constant name="struts.objectFactory.spring.autoWire"
value="AUTOWIRE_BY_NAME"/>
<!-- Add packages here -->
<package name="dafault" extends="struts-default">
<result-types>
<result-type name="tiles"
class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<interceptors>
<interceptor name="loginInterceptor"
class="com.ncr.framework.interceptor.LoginInterceptor"/>
<interceptor-stack name="capabilityStack">
<interceptor-ref name="defaultStack"/>
<interceptor-ref name="loginInterceptor"/>
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="capabilityStack"/>
<action name="logon" class="loginAction" method="execute">
<result name="success" type="tiles">page.Login</result>
</action>
</package>
</struts>
applicationContext.xml :-
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans SYSTEM "WEB-INF/spring-beans-2.0.dtd">
<beans>
<bean id="loginAction" scope="prototype"
class="com.ncr.user.actions.LoginAction">
<constructor-arg ref="adminService" />
</bean>
</beans>
LoginInterceptor.java
public class LoginInterceptor extends AbstractInterceptor {
public String intercept(ActionInvocation invocation) throws Exception {
ActionContext context = invocation.getInvocationContext();
Map<String, Object> contextMap = context.getContextMap();
HttpServletRequestWrapper request = (HttpServletRequestWrapper)
contextMap
.get(HTTP_REQUEST);
synchronized (request) {
ThreadContext.setRequest(request);
UserInfo userInfo = UserContext.getCurrentUserInfo();
if (userInfo == null
&&
!"authenticate".equals(contextMap.get(ACTION_NAME))) {
return "logon";
}
return invocation.invoke();
}
}}
When I hit url http://localhost:8080/mytest/logon.do it throws an error.
java.lang.RuntimeException: Invalid action class configuration that
references an unknown class named [loginAction]
org.apache.struts2.convention.ConventionsServiceImpl.determineResultPath(ConventionsServiceImpl.java:100)
org.apache.struts2.convention.ConventionUnknownHandler.determinePath(ConventionUnknownHandler.java:385)
org.apache.struts2.convention.ConventionUnknownHandler.handleUnknownResult(ConventionUnknownHandler.java:274)
com.opensymphony.xwork2.DefaultUnknownHandlerManager.handleUnknownResult(DefaultUnknownHandlerManager.java:76)
com.opensymphony.xwork2.DefaultActionInvocation.createResult(DefaultActionInvocation.java:215)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:356)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:266)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165)
As per my investigation, I found that ClassLoaderUtils's below method could
not return class name for 'loginAction'. There should be some way for to map
'loginAction' to the class com.ncr.user.actions.LoginAction.
public static Class loadClass(String className, Class callingClass)
throws ClassNotFoundException {
try {
return
Thread.currentThread().getContextClassLoader().loadClass(
className);
} catch (ClassNotFoundException e) {
try {
return Class.forName(className);
} catch (ClassNotFoundException ex) {
try {
return
ClassLoaderUtils.class.getClassLoader().loadClass(
className);
} catch (ClassNotFoundException exc) {
return
callingClass.getClassLoader().loadClass(className);
}
}
}
}
When I remove the entry '<default-interceptor-ref name="capabilityStack"/>'
from struts.xml then it's working perfectly fine i.e desired page is coming.
I also noticed that in the classes variable of
Thread.currentThread().getContextClassLoader()(WebappClassLoader) which is
private contains class com.ncr.user.actions.LoginAction but i did not find
any way to get it.
Your kind guesture is appreciated.
-Dev
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