我在项目中也写了一个模仿Struct的Action类，目前还不成熟，先拿出来讨论讨论。mfaction.xml 
     
    	
      	
     	
     	
             		
              			
       
        testExcel.jsp
        			
       
        /login.jsp
             		 
        	
        
    /**************************************************************** * MFActionManager动作管理类 *  * 
 * MFActionManager动作管理类 * 
 *  *   AndyZhang 2011 * @version 0.1  * ToDo:2011-12-29 ***************************************************************/package weaver.action;import java.io.File;import java.lang.reflect.Field;import java.lang.reflect.Method;import java.util.ArrayList;import java.util.Enumeration;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.dom4j.Attribute;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader;import weaver.core.MFPath;import weaver.core.MFString;import weaver.debug.MFDebug;import weaver.ormapping.MFDbTypeTransfer;import weaver.ormapping.MFReflect;public class MFActionManager {		private List
    
      includeFiles;	private Map
     
       configs;	private MFActionItems items;	private HttpServletRequest request;	private HttpServletResponse response;	private static String ext=".tw";	private static String execute="execute";		public MFActionManager()	{		includeFiles=new ArrayList
      
       ();		configs=new HashMap
       
        ();		//loadMain();		items=new MFActionItems();	}		public MFActionManager(HttpServletRequest request,HttpServletResponse response)	{		this();		updateState(request,response);		}		public void updateState(HttpServletRequest request,HttpServletResponse response)	{		this.request=request;		this.response=response;	}		public boolean prepareProperty(Class
         classType,Object obj) throws Throwable	{		if (obj instanceof IMFRequestAware)		{			((IMFRequestAware) obj).setRequest(request);			((IMFRequestAware) obj).setResponse(response);		}				Enumeration params=request.getParameterNames();		while(params.hasMoreElements()){	  	    String name=(String)params.nextElement();	  	    String value=request.getParameter(name);	  	    	  	    if (MFString.NotNullOrEmpty(name) && MFReflect.IsHaveProperty(obj,name))	  	    {	  	    	Class
         type=MFReflect.GetPropertyType(obj, name);	  	    	Object typedValue = MFDbTypeTransfer.toJavaType(type, value);	  	   		MFReflect.SetProperty(obj, name, typedValue);	  	   			  	    }	  	}		return true;	}		public boolean runAction(MFActionItem item) throws Throwable	{		if (item!=null)		{			Class
         c=Class.forName(item.getClassName());						Object obj=c.newInstance();						prepareProperty(c,obj);						String methodName =MFString.NullToString(item.getMethod(),execute);			Method method=c.getDeclaredMethod(methodName, null);						Object value=method.invoke(obj, null);			if (value!=null)			{				String url=item.getResults().get(value);				if (MFString.NotNullOrEmpty(url))				{					//String path=MFString.NullToString(item.getNamespace())+url;					response.sendRedirect(url);				}							}					}		return false;	}		public boolean runAction(String url) throws Throwable	{		MFActionItem item=findAction(url);		return runAction(item);	}		public String CheckPath(String url)	{		if (MFString.NotNullOrEmpty(url)  && !url.startsWith(MFPath.useparator)) 			url=MFPath.useparator+url;		return url;	}	public MFActionItem findAction(String url)	{		for(MFActionItem item:items)		{			String Str=MFString.NullToString(item.getNamespace())+item.getActionName()+ext;			Str=CheckPath(Str);			if (MFString.ComparerNoCase(url, Str)) 			{				MFDebug.println("find");				return item;			}					}				return null;	}		public String getAttrValue(Element item,String name)	{		Attribute attr=item.attribute(name);		if (attr!=null)		{			String text=attr.getText();			return text;		}		return null;		}		public boolean loadConfig(String filePath) throws DocumentException	{		File file = new File(filePath);                SAXReader reader = new SAXReader();		Document doc=reader.read(file);		Element root = doc.getRootElement(); 				//load include file		for (Iterator
         i = root.elementIterator("include"); i.hasNext();) 		{			Element item = (Element) i.next();			String value=getAttrValue(item,"file");			if (MFString.NotNullOrEmpty(value)) 				includeFiles.add(value);			}				//load constant		for (Iterator
         i = root.elementIterator("constant"); i.hasNext();) 		{			Element item = (Element) i.next();						String conName=getAttrValue(item,"name");			String conValue=getAttrValue(item,"value");			if (MFString.NotNullOrEmpty(conName)&&MFString.NotNullOrEmpty(conValue) ) 			{				configs.put(conName, conValue);			}				}				//load action		for (Iterator
         i = root.elementIterator("package"); i.hasNext();) 		{			Element packageItem = (Element) i.next();			String packageName=getAttrValue(packageItem,"name");			String namespace=getAttrValue(packageItem,"namespace");						for (Iterator
         j = packageItem.elementIterator("action"); j.hasNext();) 			{				MFActionItem action=new MFActionItem();				Element actionItem = (Element) j.next();								String actionName=getAttrValue(actionItem,"name");				String className=getAttrValue(actionItem,"class");				String method=getAttrValue(actionItem,"method");								action.setPackageName(packageName);				action.setNamespace(namespace);				action.setActionName(actionName);				action.setActionName(actionName);				action.setClassName(className);				action.setMethod(method);								for (Iterator
         k = actionItem.elementIterator("result"); k.hasNext();) 				{					Element resultItem = (Element) k.next();										String resultName=getAttrValue(resultItem,"name");					String url=(String)resultItem.getData();					action.getResults().put(resultName, url);				}								items.add(action);			}		}				return true;	}	public void setIncludeFiles(List
        
          includeFiles) {		this.includeFiles = includeFiles;	}	public List
         
           getIncludeFiles() { return includeFiles; }}