本文實例為大家分享了javamail注冊激活郵件的具體代碼，供大家參考，具體內容如下
需要的jar包
1.MySQL驅動包
2.mail.jar包
SMTP和POP3協議概述
SMTP協議稱為簡單郵件傳輸協議，是一組用于從原地址到目的地址傳送郵件的規則，由它來控制信件的中轉方式。SMTP協議屬于TCP/IP的協議簇，SMTP是負責郵件服務器之間的寄信的通信協定 POP3協議稱為郵局協議版本3,也是TCP/IP協議簇的一員，基于POP3協議的服務器是用來接收信件的。每個Email地址一般只有一個如果想要同時收取多個郵箱的信件，就需要挨個設置每個郵箱的POP3服務器地址。
核心代碼實現
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#創建數據庫表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, #標識是否已經激活 0未激活1已激活 code varchar(64) not null);//創建數據庫對應的javabeanpublic 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}//數據庫操作類UserDaopublic class UserDao{ private Connection conn ; //獲取數據庫連接 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); } //注冊 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(); } //關閉數據庫連接 public void closeConn(){ if(conn != null){ conn.close(); } }}//一個工具類，用于獲取隨機code注冊激活碼public class UUIDUtils{ public static String getUUID(){ return UUID.randomUUID().toString().replace("-","")+UUID.randomUUID().toString().replace("-",""); }}//index.jsp前端頁面實現<form action="<%=request.getContextPath()%>/regist.do" method="post"> <tr> <td><label for="username">賬號</label></td> <td><input type="text" name="username" /></td> </tr> <tr> <td><label for="password">密碼</label></td> <td><input type="text" name="password" /></td> </tr> <tr> <td><label for="nickname">昵稱</label></td> <td><input type="text" name="nickname" /></td> </tr> <tr> <td><label for="email">郵箱</label></td> <td><input type="text" name="email" /></td> </tr> <tr> <td><input type="submit" value="注冊" /></td> <td><input type="reset" name="重寫" /></td> </tr></form>//發送郵件的Utils工具類public class SendMailUitls{ public static void sendMail(String to,String code){ //session是mail包下的，因為是本地測試，所以第一個參數直接創建默認的即可 Session session = Session.getInstance(new Properties(),new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication(){ } }); //創建郵件對象 Message message = new MimeMessage(session); //設置發件人，這里我創建了一個[email protected]用于發送郵件 message.setRecipient(RecipientType.TO, new InternetAddress(to)); message.setSubject("來自個博網的注冊激活郵件"); message.setContent("<a href='http://localhost:8080/RegistMailWeb/active.do'>點我激活</a>","text/html;charset=utf-8"); //發送郵件 Transport.send(message); } }//regist.doServlet實現public class RegistServlet extends HttpServlet{ public void init(){ super.init(); } public void service(HttpServletRequest request,HttpServletResponse response){ //獲取數據 String username = request.getParameter("username"); String password = request.getParameter("password"); String nickname = request.getParameter("nickname"); String email = request.getParameter("email"); //封裝數據 UserBean user = new UserBean(); user.setUsername(username); user.setPassword(password); user.setNickname(nickname); user.setEmail(email); user.setCode(UUIDUtils.getUUID()); //注冊 UserDao dao = new UserDao(); dao.getConn(); dao.regist(user); dao.closeConn(); //發送郵件 SendMailUtils.sendMail(email,user.getCode()); } public void destroy(){ super.desroy(); }} //創建active.do Servlet用于激活郵箱public class ActiveServlet HttpServlet{ public void init(){ super.init(); } public void service(HttpServletRequest request,HttpServletResponse response){ //獲取數據 String code = request.getParameter("code"); //數據庫判斷對應code是否存在，（這里就不進行判斷了，直接進行比對）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(); }} |
編寫成功頁面
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<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配置兩個Servlet
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<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
打開tomcat服務器和foxmail郵件服務器，然后進入該web首頁，點擊注冊，可以在foxmail中看到對應的[email protected]郵箱中有一封注冊郵箱，點擊該郵箱中的鏈接，就進入了激活頁面，然后該注冊的賬號就激活注冊成功了
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
