javamail实现注册激活邮件

#创建数据库表
create database javamail;
use javamail;
create table user(
 id int primary key auto_increment,
 username varchar(30) not null,
 password varchar(30) not null,
 nickname varchar(30) not null,
 email varchar(30) not null,
 state int default 0, #标识是否已经激活 0未激活1已激活
 code varchar(64) not null
);

//创建数据库对应的javabean
public class UserBean{
 private Integer id;
 private String username;
 private String password;
 private String nickname;
 private String email;
 private Integer state;
 private String code;
 //省略setter and getter
}

//数据库操作类UserDao
public class UserDao{
 private Connection conn ;
 //获取数据库连接
 public void getConn(){
  Class.forName("com.mysql.jdbc.Driver");
  String url = "mysql:jdbc://localhost:3306/javamail";
  String rootname = "root";
  String rootpass = "chengxi";
  conn = DriverManager.getConnection(url,rootname,rootpass);
 }

 //注册
 public void regist(UserBean user){

  String sql = "insert into user(username,password,nickname,email,code) values(?,?,?,?,?)";
  PreparedStatement pstmt = conn.preparedCall(sql);
  pstmt.setString(1,user.getUsername());
  pstmt.setString(2,user.getPassword());
  pstmt.setString(3,user.getNickname());
  pstmt.setStirng(4,user.getEmail());
  pstmt.setString(5,user.getCode());
  pstmt.executeUpdate(); 
 }

 //激活
 public void activeByCode(String code){

  String sql = "update user set state=1,code=null where code=?";
  PreparedStatement pstmt = conn.preparedCall(sql);
  pstmt.setString(1,code);
  pstmt.executeUpdate(); 
 }

 //关闭数据库连接
 public void closeConn(){
  if(conn != null){
   conn.close();
  }
 }
}

//一个工具类，用于获取随机code注册激活码
public class UUIDUtils{
 public static String getUUID(){
  return UUID.randomUUID().toString().replace("-","")+UUID.randomUUID().toString().replace("-","");
 }
}


//index.jsp前端页面实现

 
  账号
  
 
 
  密码
  
 
 
  昵称
  
 
 
  邮箱
  
 
 
  
  
 


//发送邮件的Utils工具类
public class SendMailUitls{

 public static void sendMail(String to,String code){
  //session是mail包下的，因为是本地测试，所以第一个参数直接创建默认的即可
  Session session = Session.getInstance(new Properties(),new Authenticator() {
    @Override
    protected PasswordAuthentication getPasswordAuthentication(){
     return new PasswordAuthentication("server@store.com", "111");
    }
   });

  //创建邮件对象
  Message message = new MimeMessage(session);
  //设置发件人，这里我创建了一个server@store.com用于发送邮件
  message.setFrom(new InternetAddress("server@store.com"));
  message.setRecipient(RecipientType.TO, new InternetAddress(to));
  message.setSubject("来自个博网的注册激活邮件");
  message.setContent("点我激活","text/html;charset=utf-8");

  //发送邮件
  Transport.send(message);
 } 
}


//regist.doServlet实现
public class RegistServlet extends HttpServlet{
 public void init(){
  super.init();
 }

 public void service(HttpServletRequest request,HttpServletResponse response){
  //获取数据
  String username = request.getParameter("username");
  String password = request.getParameter("password");
  String nickname = request.getParameter("nickname");
  String email = request.getParameter("email");

  //封装数据
  UserBean user = new UserBean();
  user.setUsername(username);
  user.setPassword(password);
  user.setNickname(nickname);
  user.setEmail(email);
  user.setCode(UUIDUtils.getUUID());

  //注册
  UserDao dao = new UserDao();
  dao.getConn();
  dao.regist(user);
  dao.closeConn();

  //发送邮件
  SendMailUtils.sendMail(email,user.getCode());
 }

 public void destroy(){
  super.desroy();
 }
} 

//创建active.do Servlet用于激活邮箱
public class ActiveServlet HttpServlet{
 public void init(){
  super.init();
 }

 public void service(HttpServletRequest request,HttpServletResponse response){

  //获取数据
  String code = request.getParameter("code");

  //数据库判断对应code是否存在，（这里就不进行判断了，直接进行比对）state=1&code=null代表激活
  UserDao dao = new UserDao();
  dao.activeByCode(code);

  //重定向success.jsp
  request.getRequestDispatcher("/WEB-INF/success.jsp").forward(request,response);
 }

 public void destroy(){
  super.destroy();
 }
}

 RegistServlet
 com.servlet.RegistServlet


 RegistServlet
 /regist.do



 ActiveServlet
 com.servlet.ActiveServlet


 ActiveServlet
/active.do