Servlet 取表单的值

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"><display-name>ServletInfoForm</display-name><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>RegServlet</servlet-name><servlet-class>servlet.RegServlet</servlet-class></servlet><servlet-mapping><servlet-name>RegServlet</servlet-name><url-pattern>/servlet/RegServlet</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.html</welcome-file><welcome-file>index.htm</welcome-file><welcome-file>index.jsp</welcome-file><welcome-file>default.html</welcome-file><welcome-file>default.htm</welcome-file><welcome-file>default.jsp</welcome-file></welcome-file-list>
</web-app>

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><style type="text/css">.label{width:20%}.controler{width:80%}</style><script type="text/javascript" src="js/Calender3.js"></script></head><body><h1>用户注册</h1><hr/><form name="regForm" action="servlet/RegServlet" method="post"><table><tr><td class="label">用户名：</td><td class="controler"><input type="text" name="username"/></td></tr><tr><td>密码：</td><td><input type="password" name="password"/></td></tr><tr><td>确认密码：</td><td><input type="password" name="mypassword"/></td></tr><tr><td>电子邮箱：</td><td><input type="text" name="email"/></td></tr><tr><td>性别：</td><td>男<input type="radio" name="gender" checked="checked" value="Male"/> 女<input type="radio" name="gender" value="Female"/> </td></tr><tr><td>出生日期：</td><td><input name="birthday" type="text" id="control_date" size="10"maxlength="10" οnclick="new Calendar().show(this);" readonly="readonly" /></td></tr><tr><td>爱好：</td><td>打游戏<input type="checkbox" name="hobby" value="game"/> 跑步<input type="checkbox" name="hobby" value="run"/> 上网<input type="checkbox" name="hobby" value="internet"/> 足球<input type="checkbox" name="hobby" value="football"/> </td></tr><tr><td>自我介绍：</td><td><textarea name="introduce" rows="10" cols="40"></textarea></td></tr><tr><td>接受协议：</td><td><input type="checkbox" name="protocol"/>是否接受霸王条款</td></tr><tr><td colspan="2" align="center"><input type="submit" name="register" value="注册"/>  <input type="reset" name="cancel" value="取消"/>  </td>                </tr>         </table></form></body>
</html>

<%@page import="java.text.SimpleDateFormat"%>
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->
</head><body><h1>用户信息</h1><hr/><jsp:useBean id="userInfo" class="entity.Users" scope="session"></jsp:useBean>用户名：<jsp:getProperty property="username" name="userInfo"/><br>密码：<jsp:getProperty property="password" name="userInfo"/><br/>邮箱：<jsp:getProperty property="email" name="userInfo"/><br/>性别：<jsp:getProperty property="gender" name="userInfo"/><br/>生日：<%SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");String birthday = sdf.format(userInfo.getBirthday());%><%=birthday %><br/>爱好：<%String[] hobbys = userInfo.getHobby();for(int i=0; i < hobbys.length; i++){%><%=hobbys[i] %><% }%><br/>是否同意协议：<jsp:getProperty property="protocol" name="userInfo"/><br/>   </body>
</html>

package entity;import java.util.Date;public class Users {public Users(){}private String username;private String password;private String mypassword;private String email;private String gender;private Date birthday;private String[] hobby;private String introduce;private boolean protocol;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getMypassword() {return mypassword;}public void setMypassword(String mypassword) {this.mypassword = mypassword;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}public String[] getHobby() {return hobby;}public void setHobby(String[] hobby) {this.hobby = hobby;}public String getIntroduce() {return introduce;}public void setIntroduce(String introduce) {this.introduce = introduce;}public boolean isProtocol() {return protocol;}public void setProtocol(boolean protocol) {this.protocol = protocol;}}

package servlet;import java.io.IOException;
import java.io.PrintWriter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import entity.Users;public class RegServlet extends HttpServlet {/*** Constructor of the object.*/public RegServlet() {super();}/*** Destruction of the servlet. <br>*/public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here}/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doPost(request, response);}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");String username, password, email, gender, introduce;Date birthday;String[] hobby;boolean protocol;Users user = new Users();try {username = request.getParameter("username");password = request.getParameter("password");email = request.getParameter("email");gender = request.getParameter("introduce");birthday = sdf.parse(request.getParameter("birthday"));hobby = request.getParameterValues("hobby");if(request.getParameter("protocol") != null){protocol = true;}else{protocol = false;}user.setUsername(username);user.setPassword(password);user.setEmail(email);user.setGender(gender);user.setBirthday(birthday);user.setHobby(hobby);user.setProtocol(protocol);request.getSession().setAttribute("userInfo", user);      request.getRequestDispatcher("../userInfo.jsp").forward(request,response);} catch (ParseException e) {e.printStackTrace();}   }/*** Initialization of the servlet. <br>** @throws ServletException if an error occurs*/public void init() throws ServletException {// Put your code here}}

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