复习MVC,Serverlet，

Serverlet有周期，主要分成三个周期：

一、init在创建serverlet对象时，进行初始化。

二、service在接收请求的时候调用doGet或者

doPost方法。

三、在不需要Serverlet的时候调用destroy方法销毁对象。

Serverlet很简单，最主要的就是配置部分。

复写 doGet ,doPost方法即可。

public class Register extends HttpServlet {
	
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("coming...");
		req.setCharacterEncoding("UTF-8");
		resp.setContentType("text/html;charset=UTF-8");	
		User user = new User(req.getParameter("username"),req.getParameter("password"),req.getParameter
("name"),req.getParameter("id"));
		System.out.println("coming...");
		System.out.println(user);
		req.getSession().setAttribute("user", user);
		RequestDispatcher rd = req.getRequestDispatcher("files/success.jsp"); //转发页面
		rd.forward(req, resp);
	}
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(req,resp);
		System.out.println("coming...");	
	}
}

web.xml的配置部分

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
 
  
   <servlet>
    <servlet-name>Register</servlet-name>  
    <servlet-class>com.lubby.serverlet.Register</servlet-class>
  </servlet>


  <servlet-mapping>
    <servlet-name>Register</servlet-name>
    <url-pattern>/reg</url-pattern>
  </servlet-mapping>
  
  
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

复习MVC,Serverlet，

原文：http://blog.csdn.net/liu00614/article/details/18969229