1.jar包依赖

  1.         <dependency>
  2.             <groupId>javax.mail</groupId>
  3.             <artifactId>javax.mail-api</artifactId>
  4.             <version>1.5.6</version>
  5.         </dependency>
  7.         <dependency>
  8.             <groupId>org.apache.commons</groupId>
  9.             <artifactId>commons-email</artifactId>
  10.             <version>1.4</version>
  11.         </dependency>

2.sendMailUtil类

  1. public class SendMailUtil {
  2.     private static String mailFrom = "";
  3.     private static String mailPort = "465";
  4.     private static String mailHost = "smtp.263.net";
  5.     private static String mailUsername = "";//发件人的邮箱
  6.     private static String mailPassword = "";//发件人密码认证(qq邮箱、163等需要授权码)
  8.     public Authenticator createAuthenticator() {
  9.         Authenticator authenticator = new Authenticator() {
  10.             @Override
  11.             protected PasswordAuthentication getPasswordAuthentication() {
  12.                 //发件人邮箱账号
  13.                 //String userId = props.getProperty("userId", "jiangmo01@outlook.com");
  14.                 //发件人邮箱密码(qq、163等邮箱用的是授权码,outlook是密码)
  15.                 //String password = props.getProperty("password", "Shiyueshiriqing");
  16.                 return new PasswordAuthentication(mailUsername, mailPassword);
  17.             }
  18.         };
  19.         return authenticator;
  20.     }
  22.     public Properties createProperties() {
  24.         Properties props = new Properties();
  25.         //发件人
  26.         props.getProperty("fromEmail", mailFrom);
  27.         props.put("mail.smtp.port", mailPort);
  28.         props.put("mail.smtp.host", mailHost);
  29.         //当前smtp host设为可信任 否则抛出javax.mail.MessagingException: Could not convert socket to TLS
  30.         props.put("mail.smtp.ssl.trust", mailHost);
  31.         props.put("mail.transport.protocol", "smtp");
  32.         props.put("mail.smtp.auth", "true");
  33.         props.put("mail.smtp.starttls.enable", "true");
  34.         props.put("mail.smtp.ssl", "true");
  35.         //开启debug调试，控制台会打印相关信息
  36.         props.put("mail.debug", "true");
  37.         props.put("mail.smtp.socketFactory.fallback", "true");
  38.         props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
  39.         props.put("mail.smtp.ssl.protocols", "TLSv1.2");
  40.         return props;
  41.     }
  43.     public  boolean sendOutlookMail(String receiver, String subject, String content) {
  44.         Properties props = createProperties();
  45.         //收件人
  46.         props.getProperty("toEmail", receiver);//对收件人重新赋值了
  47.         Session session = Session.getInstance(props, createAuthenticator());
  48.         try {
  49.             MimeMessage message = new MimeMessage(session);
  50.             message.setFrom(new InternetAddress(mailUsername));
  51.             List list = new ArrayList();//不能使⽤string类型的类型，这样只能发送⼀个收件⼈
  52.             String []median=receiver.split(",");//对输⼊的多个邮件进⾏逗号分割
  53.             for(int i=0;i<median.length;i++){
  54.                 list.add(new InternetAddress(median[i]));
  55.             }
  56. //            InternetAddress[] address =(InternetAddress[])list.toArray(new InternetAddress[list.size()]);
  57. //            InternetAddress[] address = InternetAddress.parse(list.toString());
  58.             InternetAddress[] address = InternetAddress.parse(receiver);
  59.             message.setRecipients(Message.RecipientType.TO, address);
  60.             //标题
  61.             message.setSubject(subject);
  63.             MimeMultipart multipart = new MimeMultipart();
  64.             MimeBodyPart mimeBodyPart = new MimeBodyPart();
  65.             //String emailText = getHtmlContent(sendEmailApi.getTemplateContent(tempValue),tempMap);
  66.             //文本类型正文
  67.             //mimeBodyPart.setText("尊敬的张三:\r您好！\r特邀您...");
  68.             /*String emailText = "<h3>这是一个大标题</h3>\n" +
  69.                     "<br/>\n" +
  70.                     "<p>写点什么好呢</p>";*/
  71.             //html类型正文
  72.             mimeBodyPart.setContent(content, "text/html;charset=UTF-8");
  73.             //添加正文
  74.             multipart.addBodyPart(mimeBodyPart);
  75.             message.setContent(multipart);
  76.             message.setSentDate(new Date());
  77.             message.saveChanges();
  78.             Transport.send(message);
  79.             System.out.println("邮件发送结束");
  80.             return true;
  81.         } catch (MessagingException me) {
  82.             System.out.println("错误信息:" + me.getMessage());
  83.             return false;
  84.         } catch (Exception ex) {
  85.             System.out.println("错误信息:" + ex.getMessage());
  86.             return false;
  87.         }
  88.     }
  89. }

3.测试邮件发送

  1.  public static void main(String[] args) {
  2.         try {
  3.             SendMailUtil mail = new SendMailUtil();
  4.             boolean bool = mail.sendOutlookMail("**@126.com", "测试邮件发送"
  5.                     , "您好，这是一封测试邮件，请忽略");
  6.         } catch (Exception e) {
  7.             System.out.println("发送邮件失败！");
  8.         }
  9.     }