Java实现注册时发送激活邮件+激活

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;

@Controller
public 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;
    }
   
}

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;

@Service
public class RegisterValidateService {

    @Autowired
    private UserDao userDao;

    /**
     * 处理注册
    */
    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");

    }

    /**
     * 处理激活
     * @throws ParseException 
     */
      ///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）！");  
        }  

    }
}

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();
    }

}

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

    /**
     * 获取Session
     * @return
     */
    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();
        }
    }
}

<h2>注册激活</h2>
<form action="user/register?action=register" method="post">
      Email:<input type="text" id="email" name="email" value="" >
      <input type="submit" value="提交">
</form>

<body>
    恭喜你注册成功！请到注册的邮箱点击链接激活！
 </body>

<body>
    账号激活成功，点击这里去登录！
 </body>

<body>
    激活失败！错误信息：${message }
</body>