package com.zky.pub;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.ResourceBundle;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

/**
 * @author dy
 *
 */
public abstract class DispatchServlet extends HttpServlet {
    protected static final Logger log = Logger.getLogger(DispatchServlet.class);
    public void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String operate = request.getParameter("operate");
        if (Common.isNull(operate)) {
            operate = "defaultMethod";
        }
        try {
            Class[] types = new Class[]{HttpServletRequest.class,HttpServletResponse.class};
            Method method = getClass().getMethod(operate, types);
            try {
                method.invoke(this, new Object[]{request,response});
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                //e.getTargetException().printStackTrace();
                response.sendRedirect(Common.GbConvertIso("/error.jsp?errorinfo="+ e.getTargetException().toString()));
            }
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        } 
    }
    
    public abstract void defaultMethod(HttpServletRequest request, HttpServletResponse response) throws Exception;
}