An action that is an interceptor? That won't end well. Making the
interceptor implement SessionAware won't work. You can get access to
the session in the interceptor using:
ActionContext.getContext().getSession();
musachy
On Thu, Feb 19, 2009 at 3:23 PM, Security Management
<list-subscripti...@secmgmt.com> wrote:
> Struts 2.1, every time the LoggedInInterceptor runs, I get the null pointer
> exception. Any ideas:
>
> Struts.xml:
> <struts>
> <include file="struts-default.xml"/>
> <constant name="struts.objectFactory"
> value="org.apache.struts2.spring.StrutsSpringObjectFactory" />
> <package name="default" extends="struts-default">
>
> <interceptors>
> <interceptor name="loggedIn"
> class="com.secmgmt.struts2.interceptors.LoggedInInterceptor"/>
> <interceptor-stack name="defaultLoggedInStack">
> <interceptor-ref name="createSession"/>
> <interceptor-ref name="defaultStack"/>
> <interceptor-ref name="loggedIn"/>
> </interceptor-stack>
> </interceptors>
>
> <default-interceptor-ref name="defaultLoggedInStack" />
>
> And so on...
>
> Interceptor:
>
> import com.opensymphony.xwork2.interceptor.Interceptor;
> import com.opensymphony.xwork2.ActionInvocation;
> import com.opensymphony.xwork2.ActionContext;
> import com.opensymphony.xwork2.ActionSupport;
> import org.apache.struts2.ServletActionContext;
>
> import java.lang.StringBuffer;
> import java.util.Map;
> import java.util.Iterator;
> import java.util.Enumeration;
>
> import javax.servlet.http.HttpSession;
>
> import org.hibernate.criterion.Restrictions;
> import org.hibernate.Criteria;
> import org.hibernate.Hibernate;
>
> import com.secmgmt.picture.four.database_beans.*;
> import com.secmgmt.util.HibernateSpringConnector;
>
> import org.apache.struts2.interceptor.SessionAware;
>
> import org.apache.log4j.Logger;
> import org.apache.log4j.BasicConfigurator;
>
> // Extend ActionSupport for the getText(String) method.
> public class LoggedInInterceptor extends ActionSupport implements
> Interceptor, SessionAware
> {
> HibernateSpringConnector hsc;
> Map<String, Object> session;
> Logger l;
>
> public void setSession(Map<String, Object> s)
> {
> this.session = s;
> }
>
> public Map<String, Object> getSession()
> {
> return this.session;
> }
>
> /**
> * We let the Spring IOC stuff give us the HibernateSpringConnector
> for the database
> * connection.
> */
> public void setHibernateSpringConnector(HibernateSpringConnector h)
> {
> this.hsc = h;
> }
>
> public HibernateSpringConnector getHibernateSpringConnector()
> {
> return this.hsc;
> }
>
> public void init()
> {
> l = Logger.getLogger(LoggedInInterceptor.class.getName());
> l.warn("Logger setup");
> }
>
> public void destroy()
> {
> l = null;
> }
>
> public String intercept(ActionInvocation ai) throws Exception
> {
> if(this.getSession() == null)
> {
> throw new Exception("Session is null");
> }
>
> if(this.getSession().get("username") != null)
> {
> String res = ai.invoke();
> this.getHibernateSpringConnector().closeSession();
> return res;
>
> }
> else
> {
> return "login";
> }
> }
> }
>
>
>
>
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