servlet详细使用步骤和说明

[java]代码库

package com.servlet;



import java.io.IOException;

import java.nio.charset.Charset;



import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;



public class servletdemo extends HttpServlet{



    /**

     *

     */

    private static final long serialVersionUID = 1L;



    //初始化

    public void init() throws ServletException {

        System.out.println("我是init()方法！用来进行初始化工作");

    }

   

    //处理GET请求

    public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {

        doPost(request, response);

    }

   

    //处理POST请求

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String username = new String(request.getParameter("username").getBytes("ISO-8859-1"),"utf-8");

        String password = request.getParameter("password");

        HttpSession session = request.getSession();

        session.setAttribute("username", username);

        session.setAttribute("password", password);

        response.sendRedirect("/servletTest/success.jsp");

        System.out.println("用户名："+username);

        System.out.println("密码："+password);

    }

   

    //销毁实例

    public void destroy() {

        super.destroy();

        System.out.println("我是destroy()方法！用来进行销毁实例的工作");

    }//源代码片段来自云代码http://yuncode.net