DAO设计模式---实现一个简单的注册(下)

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6、DAO工厂类：

package com.song.DAOFactory;import com.song.DAO.RegisterDAO;import com.song.Impl.RegisterImpl;public class RegisterFactory{public static RegisterDAO getRegisterDAOInstance(){return new RegisterImpl();}}

7、一个servlet实现控制：

package com.song.servlet;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;import com.song.VO.RegisterBean;import com.song.DAOFactory.RegisterFactory;public class RegisterServlet extends HttpServlet{public void doGet(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException{String username = req.getParameter("username");String password = req.getParameter("password");String email = req.getParameter("email");RegisterBean rb = new RegisterBean();rb.setUsername(username);rb.setPassword(password);rb.setEmail(email);try{RegisterFactory.getRegisterDAOInstance().insert(rb);}catch(Exception e){e.printStackTrace();}res.setContentType("text/html;charset=GBK");RequestDispatcher rd = req.getRequestDispatcher("register/register.jsp");rd.forward(req,res);}}

8、JSP显示：

<%@ page contentType="text/html; charset=gbk"%><html>  <head>    <title>DAO模式实现简单注册页面</title>  </head>    <body>  <form action="/my/register" method="GET">     <center>用户名：<input type="text" name="username" /><br>密  码：<input type="password" name="password" /><br>邮  箱：<input type="text" name="email" /><br><input type="submit" value="注册" /><input type="reset" value="重置" /> </center></form>  </body></html>