网站邮件的发送

Mail工具类:(案例为网易 163邮箱)

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;
import javax.mail.internet.MimeMessage.RecipientType;

public class MailUtils {

   public static void sendMail(String email, String emailMsg)
           throws AddressException, MessagingException {
       // 1.创建一个程序与邮件服务器会话对象 Session

       Properties props = new Properties();
       props.setProperty("mail.transport.protocol", "SMTP");
       props.setProperty("mail.host", "smtp.163.com"); //邮箱不同，格式不同
       props.setProperty("mail.smtp.auth", "true");// 指定验证为true

       // 创建验证器
       Authenticator auth = new Authenticator() {
           public PasswordAuthentication getPasswordAuthentication() {
               return new PasswordAuthentication("leis17", "a123456");//账号授权码(授权码要在网易邮箱自己设置)
           }
       };

       Session session = Session.getInstance(props, auth);

       // 2.创建一个Message，它相当于是邮件内容
       Message message = new MimeMessage(session);

       message.setFrom(new InternetAddress("[email protected]")); // 设置发送者

       message.setRecipient(RecipientType.TO, new InternetAddress(email)); // 设置发送方式与接收者

       message.setSubject("用户激活");
       // message.setText("这是一封激活邮件，请<a href='#'>点击</a>");

       message.setContent(emailMsg, "text/html;charset=utf-8");

       // 3.创建 Transport用于将邮件发送

       Transport.send(message);
   }

}

jsp页面

</div>

</form>

Servlet

public class register1Servlet extends HttpServlet {

   public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
       HttpSession session = request.getSession();
       String remail = request.getParameter("email"); //得到输入的邮箱地址
       session.setAttribute("email", remail);
       // System.out.println("phone:"+request.getParameter("telephone"));
       String emailCode = null;// 6位验证码
       emailCode = "122222";
       RequestDispatcher dispatcher = request.getRequestDispatcher("/getCode.jsp");// 因为在同一个web应用下,所以不需要写/WEB_request/servlet2
       // 执行转发的方法
       try {
           MailUtils.sendMail(remail, emailCode);//将信息发送到指定邮箱
       } catch (AddressException e) {
           e.printStackTrace();
       } catch (MessagingException e) {
           e.printStackTrace();
       }
       dispatcher.forward(request, response);
   }

   public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
       doGet(request, response);
   }

}

报错情况及其解决：

163邮箱开启pop3/smtp等协议，然后用授权码代替密码来模拟登陆就可以发送成功了！

网站 邮件的发送

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