动手学servlet(二) servlet基础

时间：2015-05-05 08:48:41 阅读：134 评论：0 收藏：0 [点我收藏+]

标签：

1、我们来试着向一个servlet提交一个表单，现在webcontent下新建一个login.html页面，其中action对应servelt类名,代码如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>提交表单</title>
</head>
<body>
<form action="LoginServlet" method="post">
用户名：<input name="username" type="text"><br>
密码：<input name="password" type="password"><br>
<input value="提交" name="submit" type="submit">
</form>
</body>
</html>

代码

2、新建一个servlet类LoginServlet，代码如下：

package servletdemo;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class LoginServlet
 */
@WebServlet("/LoginServlet")
public class LoginServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public LoginServlet() {
        System.out.print("loginservlet...");
        // TODO Auto-generated constructor stub
    }

    @Override
    public void init() throws ServletException {
        // TODO 自动生成的方法存根        
        System.out.print("init...");
    }
    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        System.out.print("doget...");
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        System.out.print("dopost...");
    }
    
    @Override
    public void destroy() {
        // TODO 自动生成的方法存根
        System.out.print("destory...");
    }

}