servlet+jdbc+javabean其实跟ssh差不多

我给的这个架构可以代替ssh的架构进行项目的开发

common中放的是一些公用类

dao中放的是一些对数据的处理

entity其实也就是javabean

service中放的是一些抽象类，简单来说抽象类就是有一些接口，所谓的接口就是只有"方法名，加上一个分号".如下

 package com.ll.www.mis.service;

 import java.io.IOException;
 import java.util.List;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public interface IOrderService {

    public void SelectAll(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;

    public void SelectByPar(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;

    public void Save(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;

    public void Update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;

    public void Delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;

 }

service.imp实现这些接口

servlet类似于ssh中是struts的action。　　

感觉按照这个架构进行代码的封装出来的效果也不错。