Java教程

案例：实现用户注册功能

本文主要是介绍案例：实现用户注册功能，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

一、编写注册页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML>
<html>
<head>

<title>传智书城注册页面</title>
<%--导入css和js --%>
<link rel="stylesheet" href="${pageContext.request.contextPath}/client/css/main.css" type="text/css"/>
<script type="text/javascript" src="${pageContext.request.contextPath}/client/js/form.js"></script>
<script type="text/javascript">
	function changeImage() {
		// 改变验证码图片中的文字
		document.getElementById("img").src = "${pageContext.request.contextPath}/imageCode?time="
				+ new Date().getTime();
	}
</script>
</head>

<body class="main">
<!-- 1.网上书城顶部 start -->
       <%@include file="head.jsp"%>
<!-- 网上书城顶部  end -->
<!--2. 网上书城菜单列表  start -->
       <%@include file="menu_search.jsp" %>
<!-- 网上书城菜单列表  end -->
<!-- 3.网上书城用户注册  start -->
	<div id="divcontent">
		<form action="${pageContext.request.contextPath}/register" method="post" onsubmit="return checkForm();">
			<table width="850px" border="0" cellspacing="0">
				<tr>
					<td style="padding: 30px"><h1>新用户注册</h1>
						<table width="70%" border="0" cellspacing="2" class="upline">
							<tr>
								<td style="text-align: right; width: 20%">邮箱：</td>
								<td style="width: 40%">
								<input type="text" class="textinput"  id="email" name="email" onkeyup="checkEmail();"/>
								</td>
								<td colspan="2"><span id="emailMsg"></span><font color="#999999">请输入有效的邮箱地址</font></td>
							</tr>
							<tr>
								<td style="text-align: right">用户名：</td>
								<td><input type="text" class="textinput"  id="username" name="username" onkeyup="checkUsername();"/>
								</td>
								<td colspan="2"><span id="usernameMsg"></span><font color="#999999">字母数字下划线1到10位, 不能是数字开头</font></td>
							</tr>
							<tr>
								<td style="text-align: right">密码：</td>
								<td><input type="password" class="textinput"  id="password" name="password" onkeyup="checkPassword();"/></td>
								<td><span id="passwordMsg"></span><font color="#999999">密码请设置6-16位字符</font></td>
							</tr>
							<tr>
								<td style="text-align: right">重复密码：</td>
								<td>
								<input type="password" class="textinput"  id="repassword" name="repassword" onkeyup="checkConfirm();"/>
								</td>
								<td><span id="confirmMsg"></span>&nbsp;</td>
							</tr>
							<tr>
								<td style="text-align: right">性别：</td>
								<td colspan="2">&nbsp;&nbsp;
                                <input type="radio" name="gender" value="男" checked="checked" /> 男
									&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
									<input type="radio" name="gender" value="女" /> 女
								</td>
								<td>&nbsp;</td>
							</tr>
							<tr>
								<td style="text-align: right">联系电话：</td>
								<td colspan="2">
								<input type="text" class="textinput"
									style="width: 350px" name="telephone" />
								</td>
								<td>&nbsp;</td>
							</tr>
							<tr>
								<td style="text-align: right">个人介绍：</td>
								<td colspan="2">
								<textarea class="textarea" name="introduce"></textarea>
								</td>
								<td>&nbsp;</td>
							</tr>
						</table>


						<h1>注册验证</h1>
						<table width="80%" border="0" cellspacing="2" class="upline">
							<tr>
								<td style="text-align: right; width: 20%">输入验证码：</td>
								<td style="width: 50%">
								<input type="text" class="textinput" />
								</td>
								<td>&nbsp;</td>
							</tr>
							<tr>
								<td style="text-align: right; width: 20%;">&nbsp;</td>
								<td rowspan="2" style="width: 50%">
								<img src="${pageContext.request.contextPath}/imageCode" width="180"
									height="30" class="textinput" style="height: 30px;" id="img" />&nbsp;&nbsp;
									<a href="javascript:void(0);" onclick="changeImage()">看不清换一张</a>
								</td>
							</tr>
						</table>

						<table width="70%" border="0" cellspacing="0">
							<tr>
								<td style="padding-top: 20px; text-align: center">
									<input type="image" src="images/signup.gif" name="submit" border="0" width="140" height="35"/>
								</td>
							</tr>
						</table>
					</td>
				</tr>
			</table>
		</form>
	</div>
	
 <!-- 网上书城用户注册  end -->
<!--4. 网上书城下方显示 start -->
     <%@ include file="foot.jsp" %>
<!-- 网上书城下方显示 start -->
</body>
</html>

二、创建RegisterServlet

public class RegisterServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		// 将表单提交的数据封装到javaBean
		User user = new User();
		try {
			BeanUtils.populate(user, request.getParameterMap());
			// 封裝激活码
			user.setActiveCode(ActiveCodeUtils.createActiveCode());
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		}
		// 调用service完成注册操作。
		UserService service = new UserService();
		try {
			service.register(user);
		} catch (RegisterException e) {
			e.printStackTrace();
			response.getWriter().write(e.getMessage());
			return;
		}
		// 注册成功，跳转到registersuccess.jsp
		response.sendRedirect(request.getContextPath() + "/client/registersuccess.jsp");
		return;
	}
}

三、编写Service层方法

public class UserService {
	private UserDao dao = new UserDao();
	// 注册操作
	public void register(User user) throws RegisterException {
		// 调用dao完成注册操作
		try {
			dao.addUser(user);
			// 发送激活邮件
			String emailMsg = "感谢您注册网上书城，点击"
					+ "<a href='http://localhost:8080/itcaststore/activeUser?activeCode="
					+ user.getActiveCode() + "'>&nbsp;激活&nbsp;</a>后使用。"
							+ "<br />为保障您的账户安全，请在24小时内完成激活操作";
			MailUtils.sendMail(user.getEmail(), emailMsg);
		} catch (Exception e) {
			e.printStackTrace();
			throw new RegisterException("注冊失败");
		}
	}
}

四、创建邮件工具类

/**
 * 发送邮件的工具类
 */
public class MailUtils {
	public static void sendMail(String email, String emailMsg)
			throws AddressException, MessagingException {
		// 1.创建一个程序与邮件服务器会话对象 Session
		Properties props = new Properties();
		// 设置邮件传输协议为SMTP
		props.setProperty("mail.transport.protocol", "SMTP");
		// 设置SMTP服务器地址
		props.setProperty("mail.host", "smtp.sina.com");
		// 设置SMTP服务器是否需要用户验证，需要验证设置为true
		props.setProperty("mail.smtp.auth", "true");
		// 创建验证器
		Authenticator auth = new Authenticator() {
			public PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication("lxtestemail", "zx123456");
			}
		};
		Session session = Session.getInstance(props, auth);
		// 2.创建一个Message，它相当于是邮件内容
		Message message = new MimeMessage(session);
		message.setFrom(new InternetAddress("lxtestemail@sina.com")); // 设置发送者
		message.setRecipient(RecipientType.TO, new InternetAddress(email)); // 设置发送方式与接收者
		message.setSubject("用户激活");
		// message.setText("这是一封激活邮件，请<a href='#'>点击</a>");
		message.setContent(emailMsg, "text/html;charset=utf-8");
		// 3.创建 Transport用于将邮件发送
		Transport.send(message);
	}
}
这篇关于案例：实现用户注册功能的文章就介绍到这儿，希望我们推荐的文章对大家有所帮助，也希望大家多多支持为之网！
您可能喜欢
栏目导航