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Servlet获取表单数据

    博客分类:
  • java
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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"><input type="radio" name="gender" value="Female"></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

 
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