java 邮箱验证

1.需要加入发送邮件的mail.jar：

http://www.oracle.com/technetwork/java/javamail/index-138643.html

2.将字符串通过MD5进行加密的工具类：

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* 创建人： zy
* 创建时间： 2014年10月22日下午2:36:19
* 类描述：将字符串进行加密的工具类
*/
public class MD5Util {
/**
* 将源字符串通过MD5进行加密为字节数组
* @param source
* @return
*/
public static byte[] encodeToBytes(String source) {
byte[] result = null;
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.reset();//重置
md.update(source.getBytes("UTF-8"));//添加需要加密的源
result = md.digest();//加密
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return result;
}
/**
* 将源字符串通过MD5加密成32位16进制数
* @param source
* @return
*/
public static String encodeToHex(String source) {
byte[] data = encodeToBytes(source);//先加密为字节数组
StringBuffer hexSb = new StringBuffer();
for (int i = 0; i < data.length; i++) {
String hex = Integer.toHexString(0xff & data[i]);
if (hex.length() == 1) {
hexSb.append("0");
}
hexSb.append(hex);
}
return hexSb.toString();
}
/**
* 验证字符串是否匹配
* @param unknown 待验证的字符串
* @param okHex 使用MD5加密后的16进制字符串
* @return
*/
public static boolean validate(String unknown , String okHex) {
return okHex.equals(encodeToHex(unknown));
}
}

3.发送邮件的工具类：

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.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
* 创建人： zy
* 创建时间： 2014年10月22日下午3:04:11
* 类描述：发送邮件工具类
*/
public class SendMailUtil {
public static final String HOST = "smtp.163.com";
public static final String PROTOCOL = "smtp";
public static final int PORT = 25;
public static final String SENDER = "***@163.com";//此处需要与host相同的网站
public static final String SENDERPWD = "********";
/**
* 获取用于发送邮件的Session
* @return
*/
public 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(SENDER, SENDERPWD);
}
};
Session session = Session.getDefaultInstance(props,authenticator);
return session;
}
/**
* 发送邮件
* @param receiver
* @param content
*/
public static void send(String receiver, String content) {
Session session = getSession();
try {
System.out.println("-------开始发送-------");
Message msg = new MimeMessage(session);
//设置message属性
msg.setFrom(new InternetAddress(SENDER));
InternetAddress[] addrs = {new InternetAddress(receiver)};
msg.setRecipients(Message.RecipientType.TO, addrs);
msg.setSubject("开心网-帐号激活");
msg.setSentDate(new Date());
msg.setContent(content,"text/html;charset=utf-8");
//开始发送
Transport.send(msg);
System.out.println("-------发送完成-------");
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}

4.发送邮件的Servlet或Action：

User user = userDao.getUser();
if (user != null && user.getQybj() != 1) {
String email = user.getEmail();
StringBuffer content = new StringBuffer("<h2>请点击下面的链接激活帐号，链接只能使用一次，请尽快激活！</h2>");
String nameMd5 = MD5Util.encodeToHex(user.getUsername()+"审核通过");//创建加密字符串
content.append("<a style='font-size:16px;' href='http://localhost:8080/czfc/register.reg?doType=activate&")
.append("email=" + email + "&name=" + nameMd5 +"'>")
.append("http://localhost:8080/czfc/register.reg?doType=activate&")
.append("email=" + email + "&name=" + nameMd5 + "</a><br/><br/>")
.append("<span style='color:blue;font-size:20px;font-weight:bold;'>———浙江常山欢迎您！<span>");
SendMailUtil.send(email, content.toString());//开始发送邮件
}

5.点击链接验证的Servlet或Action：

String userName = request.getParameter("name");
String email = request.getParameter("email");
UserPostDao userDao = new UserPostDao();
User user = userDao.getUserByEmail(email);
if (user == null) {
destination = "/register/activeFail.jsp";
request.setAttribute("msg", "链接错误");
}
else {
String userNameMd5 = MD5Util.encodeToHex(user.getUsername()+"审核通过");
if (!(userName.equals(userNameMd5)) {
request.setAttribute("msg", "链接错误");
destination = "/register/activeFail.jsp";
}
else {
boolean done = userDao.updateUserStatusByEmail(email, 1);
if (done) {
request.setAttribute("userId", user.getUserid());
request.setAttribute("userName", user.getUsername());
destination = "/register/activeSuccess.jsp";
}
else {
request.setAttribute("msg", "激活出错");
destination = "/register/activeFail.jsp";
}
}
}

巴特西

java 邮箱验证

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