frontcontroller.java

是一个应用型java网站例子

package controler;

import java.io.IOException;
import javax.servlet.*;
import javax.servlet.http.*;

public class FrontController extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	protected void processRequest(HttpServletRequest req, HttpServletResponse res)
		throws ServletException, IOException {

		String actionName = req.getPathInfo().substring(1);
System.out.println(actionName);
		Action action = ActionHelper.getAction(actionName);
		String nextView = action.process(req, res);
		RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextView);
		dispatcher.forward(req,res);
	}
	

	protected void doGet(HttpServletRequest req, HttpServletResponse res)
		throws ServletException, IOException {
		processRequest(req, res);
	}

	protected void doPost(HttpServletRequest req, HttpServletResponse res)
		throws ServletException, IOException {
		processRequest(req, res);
	}
}