controller.java

来自「java模式设计的经典练习和说明,包括常用的23种模式,如工厂模式」· Java 代码 · 共 45 行

package com.accp.controll;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.accp.service.*;
import javax.servlet.Servlet;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Controller extends HttpServlet {
   //Process the HTTP Get request
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
  String className=request.getParameter("className");
  String url=request.getParameter("url");
  try {
    Class cls = Class.forName(className);
    Service service=(Service)cls.newInstance();
    service.execute(request,response,this.getServletContext());
    RequestDispatcher dis=this.getServletContext().getRequestDispatcher(url);
    dis.forward(request,response);

 }
  catch (Exception ex) {
  }
  }

  //Process the HTTP Post request
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    doGet(request, response);
  }

  //Clean up resources
  public void destroy() {
  }
}