一、導入maven依賴
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
二、建立郵件工具類
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
public class EmailUtils {
private static String host = "smtp.163.com";
private static String username = "*****@163.com";
private static String password = "*****";
private static String protocol = "smtp";
private static boolean debug = true;
private EmailUtils(){}
public static void sendEmail(String to, String code) throws MessagingException, UnsupportedEncodingException {
//連接配接郵件伺服器的參數設定
Properties properties = new Properties();
//設定伺服器位址
properties.setProperty("mail.smtp.host",host);
//設定使用者認證方式
properties.setProperty("mail.smtp.auth","true");
//設定傳輸協定
properties.setProperty("mail.transport.protocol", protocol);
//建立連接配接對象，連接配接到郵箱伺服器
Session session = Session.getDefaultInstance(properties, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
session.setDebug(debug);
//建立郵件對象
Message message = new MimeMessage(session);
//設定發件人
message.setFrom(new InternetAddress(username));
//設定收件人
message.setRecipient(Message.RecipientType.TO,new InternetAddress(to));
message.setRecipient(Message.RecipientType.CC, new InternetAddress(username));
//設定郵件主題
message.setSubject("來自稀有無緣的激活郵件");
//設定圖檔節點
MimeBodyPart mimeBodyPart = new MimeBodyPart();
mimeBodyPart.setContent("請注意您的資訊","text/html;charset=UTF-8");
DataHandler dataHandler = new DataHandler(new FileDataSource("G:\\360downloads\\310684.jpg"));
mimeBodyPart.setDataHandler(dataHandler);
//設定圖檔id以便在html中調用
mimeBodyPart.setContentID("imgt");
//設定文位元組點
MimeBodyPart text = new MimeBodyPart();
text.setContent("<a href='http://webjob.free.ngrok.cc/user/jihuo?code=" + code + "'>點選此連結激活您的賬号</a><img src='cid:imgt'>","text/html;charset=UTF-8");
//設定附件
MimeBodyPart fujian = new MimeBodyPart();
DataHandler f = new DataHandler(new FileDataSource("G:\\360downloads\\303167.jpg"));
fujian.setDataHandler(f);
fujian.setFileName(MimeUtility.encodeText(f.getName()));
MimeMultipart mimeMultipart = new MimeMultipart();
//加入所有節點
mimeMultipart.addBodyPart(mimeBodyPart);
mimeMultipart.addBodyPart(text);
mimeMultipart.addBodyPart(fujian);
mimeMultipart.setSubType("mixed");
message.setContent(mimeMultipart);
//設定郵件正文
//message.setContent("<p style='font-size: 34px'>請查收您的激活碼資訊</p>","text/html;charset=UTF-8");
Transport transport = session.getTransport("smtp");
transport.connect();
//發送郵件
transport.sendMessage(message,message.getAllRecipients());
transport.close();
}
三、建立使用者表
CREATE TABLE `user`(
`id` INT(12) PRIMARY KEY,
`username` VARCHAR(12),
`password` VARCHAR(32),
`email` VARCHAR(32),
`code` VARCHAR(64)
);
四、建立使用者類
import java.io.Serializable;
public class User implements Serializable {
public static final long serialVersionUID = 1L;
private Integer id;
private String username;
private String password;
private String email;
private String code;
public User(){}
public User(String username, String password, String email) {
this.username = username;
this.password = password;
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
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 Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
}
四、建立userDao
public interface UserDao {
void insert(User user);
User queryByCode(String code);
void update(User user);
}
五、建立mapper
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.liuxing.dao.UserDao">
<select id="queryByCode" resultType="com.liuxing.entity.User">
select id, username,
password, email, code
from user
where code = #{code}
</select>
<insert id="insert" useGeneratedKeys="true"
keyColumn="id" parameterType="com.liuxing.entity.User">
insert into
user(id,username,password,email,code)
values
(#{id},#{username},#{password},#{email},#{code})
</insert>
<update id="update" parameterType="com.liuxing.entity.User">
update user
<set>
<if test="code!=null"> code=null</if>
</set>
where code=#{code}
</update>
</mapper>
六、controller
@PostMapping(value = "/register")
public @ResponseBody
String register(User user) throws UnsupportedEncodingException, MessagingException {
user.setId((int)System.currentTimeMillis());
String code = UUID.randomUUID().toString().replace("-","");
user.setCode(code);
userDao.insert(user);
EmailUtils.sendEmail(user.getEmail(), code);
return "郵件發送成功";
}
@GetMapping(value = "/jihuo")
public String jihuo(String code){
User user = userDao.queryByCode(code);
if (user != null){
userDao.update(user);
}
return "redirect:../th/index";
}
七、前台頁面
<form action="/user/register" method="post">
<input type="text" name="username"/>
<input type="password" name="password"/>
<input type="email" name="email"/>
<input type="submit" value="注冊"/>
</form>
使用者點選注冊進入到register方法中，生成随機code，向資料庫庫添加使用者資訊。
使用者收到郵件後點選郵件中的連結進入到jihuo方法中，根據傳過來的code的值在資料庫中查詢使用者資訊，如果查詢到則将資料庫中該使用者的code設定為null，即代表該使用者已經通過郵箱驗證。如果使用者在點選過程中code被篡改則認證失敗，上述例子隻是簡單實作，實際開發中需要完善。
![【Google】谷歌郵箱驗證郵箱如何更換[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)