A009_MailUtil

柔情只为你懂 2022-03-21 02:58 123阅读 0赞

package cn.shaines.loading.blog.util;
    
    import javax.mail.Message;
    import javax.mail.MessagingException;
    import javax.mail.Session;
    import javax.mail.Transport;
    import javax.mail.internet.AddressException;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeMessage;
    import java.io.UnsupportedEncodingException;
    import java.util.Properties;
    
    /** * @program: loading-blog * @description: 发送邮件工具类 * @author: houyu * @create: 2018-12-10 22:51 */
    public class MailUtil { 
    
        private static Properties PROPERTIES;                                              // 配置参数
        private static InternetAddress FROM_INTERNETADDRESS;                               // 发送者地址
        private static String USERNAME = "xxxxxxxxx@qq.com";                               // 用户名
        private static String PASSWORD = "pwdxxxxxxxxxxxxx";                               // 密码
        private static Session SESSION;                                                    // 发送者生成的session
    
        static { 
            PROPERTIES = new Properties();
            PROPERTIES.put("mail.transport.protocol", "smtp");                              // 连接协议
            PROPERTIES.put("mail.smtp.host", "smtp.qq.com");                                // 主机名
            PROPERTIES.put("mail.smtp.port", 465);                                          // 端口号
            PROPERTIES.put("mail.smtp.auth", "true");
            PROPERTIES.put("mail.smtp.ssl.enable", "true");                                 // 设置是否使用ssl安全连接 --- 一般都使用
            // PROPERTIES.put("mail.debug", "true"); // 设置是否显示debug信息 true 会在控制台显示相关信息
    
            try { 
                String nick =javax.mail.internet.MimeUtility.encodeText("xxx");
                FROM_INTERNETADDRESS = new InternetAddress(nick+" <" + "xxxx@qq.com" +">");
            } catch (AddressException | UnsupportedEncodingException e) { 
                e.printStackTrace();
            }
            // 得到回话对象
            SESSION = Session.getInstance(PROPERTIES);
        }
    
        /** * // 导入javax.mail依赖 * compile group: 'javax.mail', name: 'mail', version: '1.4.7' * 详情浏览博客:https://www.cnblogs.com/xdp-gacl/p/4216311.html * * @param toInternetAddress : 邮箱 * @param title : 标题 * @param data : 内容 */
        public boolean sendMail(String toInternetAddress, String title, String data) { 
    
            // 获取邮件对象
            Message message = new MimeMessage(SESSION);
            // 邮差对象
            Transport transport = null;
            try { 
                // 设置发件人邮箱地址
                message.setFrom(FROM_INTERNETADDRESS);
                // 设置收件人地址
                message.setRecipients(MimeMessage.RecipientType.TO, new InternetAddress[]{ new InternetAddress(toInternetAddress)});
                // 设置邮件标题
                message.setSubject(title);
                // 设置邮件内容
                message.setText(data);
                // 得到邮差对象
                transport = SESSION.getTransport();
                // 连接自己的邮箱账户
                transport.connect(USERNAME, PASSWORD);      // 密码为刚才得到的授权码
                // 发送邮件
                transport.sendMessage(message, message.getAllRecipients());
    
                // System.out.println("发送成功");
                transport.close();
                return true;
            } catch (MessagingException e) { 
                e.printStackTrace();
                return false;
            } finally { 
                try { 
                    transport.close();
                } catch (MessagingException e) { 
                    e.printStackTrace();
                    transport = null;
                }
            }
        }
    
        /** * -------------------------------------------------------------------------------------- */
        private static class SingletonHolder { 
            private static final MailUtil INSTANCE = new MailUtil();
        }
    
        public static MailUtil get() { 
            return SingletonHolder.INSTANCE;
        }
    
        /** * -------------------------------------------------------------------------------------- */
    
    // public static void main(String[] args) throws Exception { 
    // MailUtil mailUtil = new MailUtil();
    // mailUtil.sendMail("740879019@qq.com","来自SHY BLOG的邮件", "你好呀!!");
    // mailUtil.sendMail("740879019@qq.com","来自SHY BLOG的邮件", "你好呀2!!");
    // }
    }