这期内容当中小编将会给大家带来有关利用Java怎么在用户注册时发送激活邮件，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
1.RegisterController.java
package com.app.web.controller;import java.text.ParseException;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView;import com.app.service.impl.RegisterValidateService;import com.app.tools.ServiceException; @Controllerpublic class RegisterController { @Resource private RegisterValidateService service; @RequestMapping(value="/user/register",method={RequestMethod.GET,RequestMethod.POST}) public ModelAndView load(HttpServletRequest request,HttpServletResponse response) throws ParseException{ String action = request.getParameter("action"); ModelAndView mav=new ModelAndView(); if("register".equals(action)) { //注册 String email = request.getParameter("email"); service.processregister(email);//发邮箱激活 mav.addObject("text","注册成功"); mav.setViewName("register/register_success"); } else if("activate".equals(action)) { //激活 String email = request.getParameter("email");//获取email String validateCode = request.getParameter("validateCode");//激活码 try { service.processActivate(email , validateCode);//调用激活方法 mav.setViewName("register/activate_success"); } catch (ServiceException e) { request.setAttribute("message" , e.getMessage()); mav.setViewName("register/activate_failure"); } } return mav; } }2.RegisterValidateService.java
package com.app.service.impl;import java.text.ParseException;import java.util.Date;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.app.dao.UserDao;import com.app.tools.MD5Tool;import com.app.tools.MD5Util;import com.app.tools.SendEmail;import com.app.tools.ServiceException;import com.code.model.UserModel; @Servicepublic class RegisterValidateService { @Autowired private UserDao userDao; public void processregister(String email){ UserModel user=new UserModel(); Long as=5480l; user.setId(as); user.setName("xiaoming"); user.setPassword("324545"); user.setEmail(email); user.setRegisterTime(new Date()); user.setStatus(0); ///如果处于安全，可以将激活码处理的更复杂点，这里我稍做简单处理 //user.setValidateCode(MD5Tool.MD5Encrypt(email)); user.setValidateCode(MD5Util.encode2hex(email)); userDao.save(user);//保存注册信息 ///邮件的内容 StringBuffer sb=new StringBuffer("点击下面链接激活账号，48小时生效，否则重新注册账号，链接只能使用一次，请尽快激活！</br>"); sb.append("<a href=\"http://localhost:8080/springmvc/user/register?action=activate&email="); sb.append(email); sb.append("&validateCode="); sb.append(user.getValidateCode()); sb.append("\">http://localhost:8080/springmvc/user/register?action=activate&email="); sb.append(email); sb.append("&validateCode="); sb.append(user.getValidateCode()); sb.append("</a>"); //发送邮件 SendEmail.send(email, sb.toString()); System.out.println("发送邮件"); } ///传递激活码和email过来 public void processActivate(String email , String validateCode)throws ServiceException, ParseException{ //数据访问层，通过email获取用户信息 UserModel user=userDao.find(email); //验证用户是否存在 if(user!=null) { //验证用户激活状态 if(user.getStatus()==0) { ///没激活 Date currentTime = new Date();//获取当前时间 //验证链接是否过期 currentTime.before(user.getRegisterTime()); if(currentTime.before(user.getLastActivateTime())) { //验证激活码是否正确 if(validateCode.equals(user.getValidateCode())) { //激活成功， //并更新用户的激活状态，为已激活 System.out.println("==sq==="+user.getStatus()); user.setStatus(1);//把状态改为激活 System.out.println("==sh==="+user.getStatus()); userDao.update(user); } else { throw new ServiceException("激活码不正确"); } } else { throw new ServiceException("激活码已过期！"); } } else { throw new ServiceException("邮箱已激活，请登录！"); } } else { throw new ServiceException("该邮箱未注册（邮箱地址不存在）！"); } }} 3.UserModel.java
package com.code.model;import java.beans.Transient;import java.util.Calendar;import java.util.Date; public class UserModel { private Long id; private String name; private String password; private String email;//注册账号 private int status=0;//激活状态 private String validateCode;//激活码 private Date registerTime;//注册时间 ///////////////// public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public int getStatus() { return status; } public void setStatus(int status) { this.status = status; } public String getValidateCode() { return validateCode; } public void setValidateCode(String validateCode) { this.validateCode = validateCode; } public Date getRegisterTime() { return registerTime; } public void setRegisterTime(Date registerTime) { this.registerTime = registerTime; } ///////////////////////// @Transient public Date getLastActivateTime() { Calendar cl = Calendar.getInstance(); cl.setTime(registerTime); cl.add(Calendar.DATE , 2); return cl.getTime(); } }4.SendEmail.java
package com.app.tools;import java.util.Date;import java.util.Properties;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage; public class SendEmail { public static final String HOST = "smtp.163.com"; public static final String PROTOCOL = "smtp"; public static final int PORT = 25; public static final String FROM = "xxxxx@xx.com";//发件人的email public static final String PWD = "123456";//发件人密码 private static Session getSession() { Properties props = new Properties(); props.put("mail.smtp.host", HOST);//设置服务器地址 props.put("mail.store.protocol" , PROTOCOL);//设置协议 props.put("mail.smtp.port", PORT);//设置端口 props.put("mail.smtp.auth" , true); Authenticator authenticator = new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(FROM, PWD); } }; Session session = Session.getDefaultInstance(props , authenticator); return session; } public static void send(String toEmail , String content) { Session session = getSession(); try { System.out.println("--send--"+content); // Instantiate a message Message msg = new MimeMessage(session); //Set message attributes msg.setFrom(new InternetAddress(FROM)); InternetAddress[] address = {new InternetAddress(toEmail)}; msg.setRecipients(Message.RecipientType.TO, address); msg.setSubject("账号激活邮件"); msg.setSentDate(new Date()); msg.setContent(content , "text/html;charset=utf-8"); //Send the message Transport.send(msg); } catch (MessagingException mex) { mex.printStackTrace(); } }}5.jsp页面
registerEmailValidae.jsp
<h3>注册激活</h3><form action="user/register?action=register" method="post"> Email:<input type="text" id="email" name="email" value="" > <input type="submit" value="提交"></form>register_success.jsp
<body> 恭喜你注册成功！请到注册的邮箱点击链接激活！ </body>activate_success.jsp:
<body> 账号激活成功，点击这里去登录！ </body>activate_failure.jsp:
<body> 激活失败！错误信息：${message }</body>上述就是小编为大家分享的利用Java怎么在用户注册时发送激活邮件了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注编程网行业资讯频道。
