使用邮箱注册帐户以及激活

思路：

1.注册帐户时把用户存入数据库并且设置用户状态不可用，同时给注册的邮箱发邮件。

2.邮箱的内容应该是链接到项目的激活方法，并且传入参数（注册的邮箱和验证码）。（http://localhost:8080/email/user/register?action=activate&email=1434244213@qq.com&validateCode=b4dc9b79b75d9aa7d6c332e780a375c2）

3.点击链接会对邮箱、验证码、激活时间进行验证，如果激活成功，更改用户状态为可用。

service层代码

import java.text.ParseException;
import java.util.Date;import javax.servlet.http.HttpServletRequest;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.app.dao.UserDao;
import com.app.tools.MD5Util;
import com.app.tools.SendEmail;
import com.app.tools.SendMail;
import com.app.tools.ServiceException;
import com.code.model.UserModel;/*** * @author BuNuo*/
@Service
public class RegisterValidateService {@Autowiredprivate UserDao userDao;@Autowiredprivate  HttpServletRequest request;/*** 处理注册*/public void processregister(String email){UserModel user=new UserModel();Long as=5480l;user.setId(as);user.setName("BuNuo");user.setPassword("111111");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>");String url = request.getScheme() //当前链接使用的协议+"://" + request.getServerName()//服务器地址 + ":" + request.getServerPort() //端口号 + request.getContextPath(); //应用名称，如果应用名称为sb.append("<a href="+url+"/user/register?action=activate&email=");sb.append(email); sb.append("&validateCode="); sb.append(user.getValidateCode());sb.append("\">http://localhost:8088/email/user/register?action=activate&email="); sb.append(email);sb.append("&validateCode=");sb.append(user.getValidateCode());sb.append("</a>");//发送邮件//new SendMail().sendMail(email, sb.toString());new 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 {  System.out.println("激活码不正确");  }  } else { System.out.println("激活码已过期！");  }  } else {System.out.println("邮箱已激活，请登录！");  }  } else {System.out.println("该邮箱未注册（邮箱地址不存在）！");  }  }
}

MD5Util.java

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MD5Util {/*** 将源字符串使用MD5加密为字节数组* @param source* @return*/public static byte[] encode2bytes(String source) {byte[] result = null;try {MessageDigest md = MessageDigest.getInstance("MD5");md.reset();md.update(source.getBytes("UTF-8"));result = md.digest();} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (UnsupportedEncodingException e) {e.printStackTrace();}return result;}/*** 将源字符串使用MD5加密为32位16进制数* @param source* @return*/public static String encode2hex(String source) {byte[] data = encode2bytes(source);StringBuffer hexString = new StringBuffer();for (int i = 0; i < data.length; i++) {String hex = Integer.toHexString(0xff & data[i]);if (hex.length() == 1) {hexString.append('0');}hexString.append(hex);}return hexString.toString();}/*** 验证字符串是否匹配* @param unknown 待验证的字符串* @param okHex 使用MD5加密过的16进制字符串* @return 匹配返回true，不匹配返回false*/public static boolean validate(String unknown , String okHex) {return okHex.equals(encode2hex(unknown));}}

SendEmail.java 发送邮件的方法，调用此方法传入邮箱和发送内容即可（new SendEmail().send(email, content);）

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;/*** * @author BuNuo*/
public class SendEmail {public static final String HOST = "smtp.163.com";public static final String PROTOCOL = "smtp";   public static final int PORT = 8080;public static final String FROM = "";//发件人的emailpublic static final String PWD = "";//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() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(FROM, PWD);}};Session session = Session.getDefaultInstance(props , authenticator);return session;}public void send(String toEmail , String content) {Session session = getSession();try {System.out.println("--send--"+content);// Instantiate a messageMessage msg = new MimeMessage(session);//Set message attributesmsg.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();}}
}