Servlet获取表单数据 博客分类： java Servlet

一 用户实体类

 package entity;

import java.util.Date;

//用户实体类

public class Users {

 

        private String username; //用户名

        private String mypassword; //密码

        private String email; //电子邮箱

        private String gender; //性别

        private Date birthday; //出生日期

        private String[] favorites; //爱好

        private String introduce; //自我介绍

        private boolean flag; //是否接受协议

        

        public Users()

        {

                

        }

        

        public String getUsername() {

                return username;

        }

        public void setUsername(String username) {

                this.username = username;

        }

        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[] getFavorites() {

                return favorites;

        }

        public void setFavorites(String[] favorites) {

                this.favorites = favorites;

        }

        public String getIntroduce() {

                return introduce;

        }

        public void setIntroduce(String introduce) {

                this.introduce = introduce;

        }

 

        public boolean isFlag() {

                return flag;

        }

 

        public void setFlag(boolean flag) {

                this.flag = flag;

        }

 

}

二 Servlet类

package servlet;

import java.io.IOException;

import java.io.PrintWriter;

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 {

        request.setCharacterEncoding("utf-8");

        

        Users u = new Users();

        String username,mypassword,gender,email,introduce,isAccept;

        Date birthday;

        String[] favorites;

        

        

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

        try

        {

            username = request.getParameter("username");

            mypassword = request.getParameter("mypassword");

            gender = request.getParameter("gender");

            email = request.getParameter("email");

            introduce = request.getParameter("introduce");

            birthday = sdf.parse(request.getParameter("birthday"));

            if(request.getParameterValues("isAccpet")!=null)

            {

              isAccept = request.getParameter("isAccept");

            }

            else

            {

              isAccept = "false";

            }

            //用来获取多个复选按钮的值

            favorites = request.getParameterValues("favorite");

            u.setUsername(username);

            u.setMypassword(mypassword);

            u.setGender(gender);

            u.setEmail(email);

            u.setFavorites(favorites);

            u.setIntroduce(introduce);

            if(isAccept.equals("true"))

            {

                u.setFlag(true);

            }

            else

            {

                u.setFlag(false);

            }

            u.setBirthday(birthday);

            

            //把注册成功的用户对象保存在session中

            request.getSession().setAttribute("regUser", u);

            //跳转到注册成功页面

            request.getRequestDispatcher("../userinfo.jsp").forward(request,response);

        }

        catch(Exception ex)

        {

            ex.printStackTrace();

        }    

    }

    /**

     * Initialization of the servlet. <br>

     *

     * @throws ServletException if an error occurs

     */

    public void init() throws ServletException {

        // Put your code here

    }

}

 

三 reg.jsp

<%@ 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 'reg.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/Calendar3.js"></script>

  </head>

 

  <body>

    <h1>用户注册</h1>

    <hr>

    <form name="regForm" action="servlet/RegServlet" method="post" >

                          <table border="0" width="800" cellspacing="0" cellpadding="0">

                            <tr>

                                <td class="lalel">用户名：</td>

                                <td class="controler"><input type="text" name="username" /></td>

                            </tr>

                            <tr>

                                <td class="label">密码：</td>

                                <td class="controler"><input type="password" name="mypassword" ></td>

                                

                            </tr>

                            <tr>

                                <td class="label">确认密码：</td>

                                <td class="controler"><input type="password" name="confirmpass" ></td>

                                

                            </tr>

                            <tr>

                                <td class="label">电子邮箱：</td>

                                <td class="controler"><input type="text" name="email" ></td>

                                

                            </tr>

                            <tr>

                                <td class="label">性别：</td>

                                <td class="controler"><input type="radio" name="gender" checked="checked" value="Male">男<input type="radio" name="gender" value="Female">女</td>

                                

                            </tr>

                          

                            <tr>

                                <td class="label">出生日期：</td>

                                <td class="controler">

                                  <input name="birthday" type="text" id="control_date" size="10"

                      maxlength="10" onclick="new Calendar().show(this);" readonly="readonly" />

                                </td>

                            </tr>

                            <tr>

                                <td class="label">爱好：</td>

                                <td class="controler">

                                <input type="checkbox" name="favorite" value="nba"> NBA &nbsp;

                                  <input type="checkbox" name="favorite" value="music"> 音乐 &nbsp;

                                  <input type="checkbox" name="favorite" value="movie"> 电影 &nbsp;

                                  <input type="checkbox" name="favorite" value="internet"> 上网 &nbsp;

                                </td>

                            </tr>

                            <tr>

                                <td class="label">自我介绍：</td>

                                <td class="controler">

                                        <textarea name="introduce" rows="10" cols="40"></textarea>

                                </td>

                            </tr>

                            <tr>

                                <td class="label">接受协议：</td>

                                <td class="controler">

                                        <input type="checkbox" name="isAccept" value="true">是否接受霸王条款

                                </td>

                            </tr>

                            <tr>

                                <td colspan="2" align="center">

                                        <input type="submit" value="注册"/>&nbsp;&nbsp;

                                    <input type="reset" value="取消"/>&nbsp;&nbsp;

                                </td>

                            </tr>

                          </table>

                        </form>

  </body>

</html>

四 userinfo.jsp

<%@ page language="java" import="java.util.*,java.text.*" 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 'userinfo.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">

         .title{

                 width: 30%;     

                 background-color: #CCC;

                 font-weight: bold;

         }

         .content{

             width:70%;

             background-color: #CBCFE5;

         }

        

   </style> 

  </head>

 

  <body>

    <h1>用户信息</h1>

    <hr>

    <center>

     <jsp:useBean  id="regUser" class="entity.Users" scope="session"/>  

     <table width="600" cellpadding="0" cellspacing="0" border="1">

        <tr>

          <td class="title">用户名：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="username"/></td>

        </tr>

        <tr>

          <td class="title">密码：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="mypassword"/></td>

        </tr>

        <tr>

          <td class="title">性别：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="gender"/></td>

        </tr>

        <tr>

          <td class="title">E-mail：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="email"/></td>

        </tr>

        <tr>

          <td class="title">出生日期：</td>

          <td class="content">&nbsp;

            <%

               SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");

               String date = sdf.format(regUser.getBirthday());

              

            %>

             <%=date%>

          </td>

        </tr>

        <tr>

          <td class="title">爱好：</td>

          <td class="content">&nbsp;

            <%

               String[] favorites = regUser.getFavorites();

               for(String f:favorites)

               {

            %>

                <%=f%> &nbsp;&nbsp;

            <%

               }

            %>

          </td>

        </tr>

        <tr>

          <td class="title">自我介绍：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="introduce"/></td>

        </tr>

        <tr>

          <td class="title">是否介绍协议：</td>

          <td class="content">&nbsp;<jsp:getProperty name="regUser" property="flag"/></td>

        </tr>

     </table>

    </center>

  </body>

</html>

 

五 测试效果