Google App Engine with Struts 2

簡單紀錄一下Google App Engine 中使用struts 2的方法
詳細圖示教學參考下列連結:

1.加入struts所需要的一些基本library

commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging-1.1.jar
freemarker-2.3.13.jar
ognl-2.6.11.jar
struts2-core-2.1.6.jar
xwork-2.1.2.jar

2.建立ognl listerner,將 OgnlRuntime的SecurityManager設定為null,listener內容如下:

package util.listener;   
 
import javax.servlet.ServletContextEvent;   
import javax.servlet.ServletContextListener;   
import javax.servlet.http.HttpSessionAttributeListener;   
import javax.servlet.http.HttpSessionBindingEvent;   
import javax.servlet.http.HttpSessionEvent;   
import javax.servlet.http.HttpSessionListener;   
 
import ognl.OgnlRuntime;   
 
/**  
 * 建立ognl listener **  
 */  
public class InitListener implements ServletContextListener,   
        HttpSessionListener, HttpSessionAttributeListener {   
 
    public InitListener() {   
    }   
 
    public void contextInitialized(ServletContextEvent sce) {   
        OgnlRuntime.setSecurityManager(null);   
    }   
 
    public void contextDestroyed(ServletContextEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
    public void sessionCreated(HttpSessionEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
    public void sessionDestroyed(HttpSessionEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
    public void attributeAdded(HttpSessionBindingEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
    public void attributeRemoved(HttpSessionBindingEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
    public void attributeReplaced(HttpSessionBindingEvent arg0) {   
        // TODO Auto-generated method stub   
    }   
 
}

再於web.xml中加入listener

  
         com.jun.util.listener.InitListener