actionhelper.java

来自「本人大学时大型作业用JAVA做的一个 BBS系统 模式MVC 非struts版 」· Java 代码 · 共 30 行

package helps;
import javax.servlet.*;
import java.util.HashMap;
import javax.xml.parsers.*;
import java.io.*; 
import org.xml.sax.*;
import servlets.*;
import domain.*;
public class ActionHelper
{
	private static HashMap actions = new HashMap();
	private static ActionConfig actionConfig=new ActionConfig();	
	public static Action getAction(ServletContext scx,String path)
		throws ParserConfigurationException,SAXException,IOException
	{
		Action action = null;
		actionConfig.setActionConfig(scx);		
		try
		{
			actions=(HashMap)scx.getAttribute("actionMap");
			Class c = Class.forName(((ActionMapping)actions.get(path)).getType());
			action = (Action)c.newInstance();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}		
		return action;
	}
}