Java注册邮箱激活验证实现代码

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;

/**
 *
 * @author Qixuan.Chen
 */
@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！
");
        sb.append("        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("");

        //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）！"); 
        } 

    }

}