javamail实现注册激活邮件

本文实例为大家分享了javamail注册激活邮件的具体代码，供大家参考，具体内容如下

需要的jar包

1.mysql驱动包
2.mail.jar包

smtp和pop3协议概述

smtp协议称为简单邮件传输协议，是一组用于从原地址到目的地址传送邮件的规则，由它来控制信件的中转方式。smtp协议属于tcp/ip的协议簇，smtp是负责邮件服务器之间的寄信的通信协定 pop3协议称为邮局协议版本3,也是tcp/ip协议簇的一员，基于pop3协议的服务器是用来接收信件的。每个email地址一般只有一个如果想要同时收取多个邮箱的信件，就需要挨个设置每个邮箱的pop3服务器地址。

核心代码实现

#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
<form action="<%=request.getcontextpath()%>/regist.do" method="post">
 <tr>
  <td><label for="username">账号</label></td>
  <td><input type="text" name="username" /></td>
 </tr>
 <tr>
  <td><label for="password">密码</label></td>
  <td><input type="text" name="password" /></td>
 </tr>
 <tr>
  <td><label for="nickname">昵称</label></td>
  <td><input type="text" name="nickname" /></td>
 </tr>
 <tr>
  <td><label for="email">邮箱</label></td>
  <td><input type="text" name="email" /></td>
 </tr>
 <tr>
  <td><input type="submit" value="注册" /></td>
  <td><input type="reset" name="重写" /></td>
 </tr>
</form>

//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("[e-mail]", "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[e-mail]用于发送邮件
  message.setfrom(new internetaddress("[e-mail]"));
  message.setrecipient(recipienttype.to, new internetaddress(to));
  message.setsubject("来自个博网的注册激活邮件");
  message.setcontent("<a href='http://localhost:8080/registmailweb/active.do'>点我激活</a>","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();
 }
}

编写成功页面

<html>
 <head>
  <title>成功激活</title>
 </head>
 <body>
  <script>
   window.onload = function(){
    alert("已成功激活");
   };
  </script>
 </body>
</html>

web.xml配置两个servlet

<servlet>
 <servlet-name>registservlet</servlet-name>
 <servlet-class>com.servlet.registservlet</servlet-class>
</servlet>
<servlet-mapping>
 <servlet-name>registservlet</servlet-name>
 <url-pattern>/regist.do</url-pattern>
</servlet-mapping>

<servlet>
 <servlet-name>activeservlet</servlet-name>
 <servlet-class>com.servlet.activeservlet</servlet-class>
</servlet>
<servlet-mapping>
 <servlet-name>activeservlet</servlet-name>
<url-pattern>/active.do</url-pattern>

效果

打开tomcat服务器和foxmail邮件服务器，然后进入该web首页，点击注册，可以在foxmail中看到对应的[e-mail]邮箱中有一封注册邮箱，点击该邮箱中的链接，就进入了激活页面，然后该注册的账号就激活注册成功了

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。