javamail邮件工具类（增加465端口发送，收件，无效收件人过滤）

Wesley13
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package com.flysand;

import com.alibaba.fastjson.JSON;
import com.google.common.collect.Lists;
import com.j1cn.bizclient.meta.entity.email.EmailEntity;
import com.j1cn.bizclient.meta.entity.email.EmailInfo;
import com.j1cn.bizclient.meta.entity.email.ReceiveEntity;
import com.j1cn.commons.exception.JyException;
import com.j1cn.commons.utils.StringUtils;
import com.sun.net.ssl.internal.ssl.Provider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.CollectionUtils;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.util.ByteArrayDataSource;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.security.Security;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import java.util.Vector;

/**
 * 邮件工具类
 *
 * @author flysand
 **/
public class EmailUtils {

    private static final Logger logger = LoggerFactory.getLogger(EmailUtils.class);

    private static final String MAIL_SMTP_AUTH = "mail.smtp.auth";
    private static final String MAIL_TRANSPORT_PROTOCOL = "mail.transport.protocol";
    private static final String MAIL_SMTP_HOST = "mail.smtp.host";

    private static final String TEXT = "TEXT";

    private static final String TEXT_PLAIN = "TEXT/PLAIN";

    private static final String TEXT_HTML = "TEXT/HTML";

    private static final String INVALID_ADDRESS_MESSAGE = "Invalid Addresses";


    public static void sendAttachMail(EmailEntity emailEntity, InputStream is, String excelName) {
        logger.debug("发送一封带一个附件的邮件");
        //基础校验
        if (StringUtils.isBlank(emailEntity.getHost())) {
            throw new JyException("发件服务器未设置");
        }
        if (emailEntity.getPort() == null) {
            emailEntity.setPort(25);
        }
        if (StringUtils.isBlank(emailEntity.getFrom())) {
            throw new JyException("发件人未设置");
        }
        if (StringUtils.isBlank(emailEntity.getPassword())) {
            throw new JyException("发件人密码未设置");
        }

        Properties properties = new Properties();
        properties.setProperty(MAIL_SMTP_AUTH, "true");
        properties.setProperty(MAIL_TRANSPORT_PROTOCOL, "smtp");
        properties.setProperty(MAIL_SMTP_HOST, emailEntity.getHost());

        Session session = Session.getDefaultInstance(properties);
        session.setDebug(false);
        MimeMessage message = new MimeMessage(session);

        try {
            //设置发件人邮箱
            message.setFrom(new InternetAddress(emailEntity.getFrom()));
            setReCcList(emailEntity, message);


            //设置主题
            message.setSubject(emailEntity.getSubject());
            //设置中文
            message.addHeader("charset", "UTF-8");

            //正文
            Multipart multipart = new MimeMultipart();
            BodyPart bodyPart = new MimeBodyPart();
            //设置邮件正文内容
            bodyPart.setText(emailEntity.getContent());
            //设置正文中文
            bodyPart.setHeader("Content-Type", "text/html;charset=UTF-8");
            multipart.addBodyPart(bodyPart);

            //附件
            MimeBodyPart fileBody = new MimeBodyPart();
            DataSource source = new ByteArrayDataSource(is, "application/vnd.ms-excel");
            fileBody.setDataHandler(new DataHandler(source));
            String filename = StringUtils.isBlank(excelName) ? "excel" + FileUtils.EXCEL_SUFFIX : excelName;

            fileBody.setFileName(MimeUtility.encodeText(filename));
            multipart.addBodyPart(fileBody);

            message.setContent(multipart);
            message.setSentDate(new Date());
            message.saveChanges();
            Transport transport = session.getTransport("smtp");

            transport.connect(emailEntity.getHost(), emailEntity.getPort(), emailEntity.getFrom(), emailEntity.getPassword());
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();

        } catch (Exception e) {
            e.printStackTrace();
            throw new JyException("邮件发送失败");
        }
    }

    public static void sendSslAttachMail(EmailEntity emailEntity, InputStream is, String excelName) {
        logger.debug("发送一封带一个附件的邮件");
        //基础校验
        if (StringUtils.isBlank(emailEntity.getHost())) {
            throw new JyException("发件服务器未设置");
        }
        if (emailEntity.getPort() == null) {
            emailEntity.setPort(465);
        }
        if (StringUtils.isBlank(emailEntity.getFrom())) {
            throw new JyException("发件人未设置");
        }
        if (StringUtils.isBlank(emailEntity.getPassword())) {
            throw new JyException("发件人密码未设置");
        }

        //设置SSL连接、邮件配置
        Security.addProvider(new Provider());
        Properties props = System.getProperties();
        props.setProperty("mail.smtp.host", emailEntity.getHost());
        props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.setProperty("mail.smtp.socketFactory.fallback", "false");
        props.setProperty("mail.smtp.port", "465");
        props.setProperty("mail.smtp.socketFactory.port", "465");
        props.setProperty("mail.smtp.auth", "true");

        Session session = Session.getDefaultInstance(props, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(emailEntity.getFrom(), emailEntity.getPassword());
            }
        });

        session.setDebug(false);
        MimeMessage message = new MimeMessage(session);

        try {
            //设置发件人邮箱
            message.setFrom(new InternetAddress(emailEntity.getFrom()));
            setReCcList(emailEntity, message);


            //设置主题
            message.setSubject(emailEntity.getSubject());
            //设置中文
            message.addHeader("charset", "UTF-8");

            //正文
            Multipart multipart = new MimeMultipart();
            BodyPart bodyPart = new MimeBodyPart();
            //设置邮件正文内容
            bodyPart.setText(emailEntity.getContent());
            //设置正文中文
            bodyPart.setHeader("Content-Type", "text/html;charset=UTF-8");
            multipart.addBodyPart(bodyPart);

            //附件
            MimeBodyPart fileBody = new MimeBodyPart();
            DataSource source = new ByteArrayDataSource(is, "application/vnd.ms-excel");
            fileBody.setDataHandler(new DataHandler(source));
            String filename = StringUtils.isBlank(excelName) ? "excel" + FileUtils.EXCEL_SUFFIX : excelName;

            fileBody.setFileName(MimeUtility.encodeText(filename));
            multipart.addBodyPart(fileBody);

            message.setContent(multipart);
            message.setSentDate(new Date());
            message.saveChanges();
            Transport transport = session.getTransport("smtp");

            transport.connect(emailEntity.getHost(), emailEntity.getPort(), emailEntity.getFrom(), emailEntity.getPassword());
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();

        } catch (SendFailedException se) {
            // 判断当前失败信息，如果为地址错误，则过滤无效地址后重发
            if (INVALID_ADDRESS_MESSAGE.equals(se.getMessage())) {
                Address[] addresses = se.getInvalidAddresses();
                List<String> addressList = Lists.newArrayList();

                List<String> recipientList = emailEntity.getRecipients();
                List<String> ccList = emailEntity.getCcList();
                for (Address address : addresses) {
                    InternetAddress internetAddress = (InternetAddress) address;
                    if (recipientList.contains(internetAddress.getAddress())) {
                        recipientList.remove(internetAddress.getAddress());
                    }
                    if (ccList.contains(internetAddress.getAddress())) {
                        ccList.remove(internetAddress.getAddress());
                    }
                    addressList.add(internetAddress.getAddress());
                }
                logger.error("存在不可用邮箱地址:{},过滤后重新发送邮件...", JSON.toJSONString(addressList));

                if (CollectionUtils.isEmpty(recipientList)) {
                    logger.error("不存在有效的邮箱地址,已配置但无效的邮箱地址：{}", JSON.toJSONString(addressList));
                    throw new JyException("不存在有效的邮箱地址，已配置但无效的邮箱地址：" + JSON.toJSONString(addressList));
                }
                // 重新发送
                emailEntity.setRecipients(new Vector<>(recipientList));
                if (!CollectionUtils.isEmpty(ccList)) {
                    emailEntity.setCcList(new Vector<>(ccList));
                }
                sendSslAttachMail(emailEntity, is, excelName);
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new JyException("邮件发送失败");
        }
    }

    private static void setReCcList(EmailEntity emailEntity, MimeMessage message) throws MessagingException {
        //设置收件人和抄送人
        if (!CollectionUtils.isEmpty(emailEntity.getRecipients())) {
            Address[] addresses = new Address[emailEntity.getRecipients().size()];
            for (int i = 0; i < emailEntity.getRecipients().size(); i++) {
                addresses[i] = new InternetAddress(emailEntity.getRecipients().get(i));
            }
            message.addRecipients(Message.RecipientType.TO, addresses);
        }
        if (!CollectionUtils.isEmpty(emailEntity.getCcList())) {
            Address[] ccList = new Address[emailEntity.getCcList().size()];
            for (int i = 0; i < emailEntity.getCcList().size(); i++) {
                ccList[i] = new InternetAddress(emailEntity.getCcList().get(i));
            }
            message.addRecipients(Message.RecipientType.CC, ccList);
        }
    }

    /**
     * 发送带多个附件的邮件
     *
     * @param emailEntity 邮箱参数对象
     * @param fileList    附件文件列表
     */
    public static void sendMultiAttachEmail(EmailEntity emailEntity, List<File> fileList) {
        logger.debug("发送多附件邮件...");
        //基础校验
        if (StringUtils.isBlank(emailEntity.getHost())) {
            throw new JyException("发件服务器未设置");
        }
        if (emailEntity.getPort() == null) {
            emailEntity.setPort(25);
        }
        if (StringUtils.isBlank(emailEntity.getFrom())) {
            throw new JyException("发件人未设置");
        }
        if (StringUtils.isBlank(emailEntity.getPassword())) {
            throw new JyException("发件人密码未设置");
        }

        Properties properties = new Properties();
        properties.setProperty(MAIL_SMTP_AUTH, "true");
        properties.setProperty(MAIL_TRANSPORT_PROTOCOL, "smtp");
        properties.setProperty(MAIL_SMTP_HOST, emailEntity.getHost());

        Session session = Session.getDefaultInstance(properties);
        session.setDebug(false);
        setEmailMessage(emailEntity, fileList, session);
    }

    private static void setEmailMessage(EmailEntity emailEntity, List<File> fileList, Session session) {
        MimeMessage message = new MimeMessage(session);

        try {
            //设置发件人邮箱
            message.setFrom(new InternetAddress(emailEntity.getFrom()));

            //设置收件人和抄送人
            setReCcList(emailEntity, message);
            //设置主题
            message.setSubject(MimeUtility.encodeText(emailEntity.getSubject(), "UTF-8", "B"));
            //设置中文
            message.addHeader("charset", "UTF-8");

            //正文
            Multipart multipart = new MimeMultipart();
            BodyPart bodyPart = new MimeBodyPart();
            //设置邮件正文内容
            bodyPart.setText(emailEntity.getContent());
            //设置正文中文
            bodyPart.setHeader("Content-Type", "text/html;charset=UTF-8");
            multipart.addBodyPart(bodyPart);

            //附件

            for (File file : fileList) {
                MimeBodyPart fileBody = new MimeBodyPart();

                FileDataSource fileDataSource = new FileDataSource(file);
                fileBody.setDataHandler(new DataHandler(fileDataSource));
                fileBody.setFileName(MimeUtility.encodeText(file.getName(), "UTF-8", "B"));

                multipart.addBodyPart(fileBody);
            }

            message.setContent(multipart);
            message.setSentDate(new Date());
            message.saveChanges();
            Transport transport = session.getTransport("smtp");

            transport.connect(emailEntity.getHost(), emailEntity.getPort(), emailEntity.getFrom(), emailEntity.getPassword());
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();

        } catch (SendFailedException se) {
            // 判断当前失败信息，如果为地址错误，则过滤无效地址后重发
            if (INVALID_ADDRESS_MESSAGE.equals(se.getMessage())) {
                Address[] addresses = se.getInvalidAddresses();
                List<String> addressList = Lists.newArrayList();

                List<String> recipientList = emailEntity.getRecipients();
                List<String> ccList = emailEntity.getCcList();
                for (Address address : addresses) {
                    InternetAddress internetAddress = (InternetAddress) address;
                    if (recipientList.contains(internetAddress.getAddress())) {
                        recipientList.remove(internetAddress.getAddress());
                    }
                    if (ccList.contains(internetAddress.getAddress())) {
                        ccList.remove(internetAddress.getAddress());
                    }
                    addressList.add(internetAddress.getAddress());
                }
                logger.error("存在不可用邮箱地址:{},过滤后重新发送邮件...", JSON.toJSONString(addressList));

                if (CollectionUtils.isEmpty(recipientList)) {
                    logger.error("不存在有效的邮箱地址,已配置但无效的邮箱地址：{}", JSON.toJSONString(addressList));
                    throw new JyException("不存在有效的邮箱地址，已配置但无效的邮箱地址：" + JSON.toJSONString(addressList));
                }
                // 重新发送
                emailEntity.setRecipients(new Vector<>(recipientList));
                if (!CollectionUtils.isEmpty(ccList)) {
                    emailEntity.setCcList(new Vector<>(ccList));
                }
                setEmailMessage(emailEntity, fileList, session);
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new JyException("邮件发送失败");
        }
    }

    /**
     * 发送邮件
     *
     * @param email    邮件发送参数
     * @param fileList 附件列表
     * @return 是否发送成功
     */
    public static boolean sendEmail(EmailEntity email, List<File> fileList) {
        try {
            EmailUtils.sendMultiAttachEmail(email, fileList);
            logger.info("邮件发送成功");
            return true;
        } catch (JyException e) {
            logger.error("邮件发送失败{}", e.getMessage());
            return false;
        }
    }

    /**
     * SSL发送邮件 465端口
     *
     * @param email
     * @param fileList
     * @return
     */
    public static boolean sendSslEmail(EmailEntity email, List<File> fileList) {
        logger.info("ssl发送邮件...");
        try {
            if (email.getPort() == null) {
                email.setPort(465);
            }
            //设置SSL连接、邮件配置
            Security.addProvider(new Provider());
            Properties props = System.getProperties();
            props.setProperty("mail.smtp.host", email.getHost());
            props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
            props.setProperty("mail.smtp.socketFactory.fallback", "false");
            props.setProperty("mail.smtp.port", "465");
            props.setProperty("mail.smtp.socketFactory.port", "465");
            props.setProperty("mail.smtp.auth", "true");

            Session session = Session.getDefaultInstance(props, new Authenticator() {
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(email.getFrom(), email.getPassword());
                }
            });
            session.setDebug(true);
            setEmailMessage(email, fileList, session);
            logger.info("邮件发送成功");
            return true;
        } catch (JyException e) {
            logger.error("邮件发送失败 - {}", e.getMessage());
            return false;
        }
    }

    /**
     * 获取当前邮箱的所有邮件  --  暂不能包含附件
     *
     * @param receiveEntity
     * @return
     * @throws Exception
     */
    public static List<EmailInfo> receiveAllEmail(ReceiveEntity receiveEntity) throws Exception {
        logger.info("收取邮件...");
        Folder folder = getInBox(receiveEntity);
        // 获得收件箱的邮件列表
        Message[] messages = folder.getMessages();
        return getReceivedEmailContent(messages);
    }

    /**
     * 获取邮件信息，仅支持纯文本邮件
     *
     * @param messages
     * @return
     * @throws MessagingException
     * @throws IOException
     */
    public static List<EmailInfo> getReceivedEmailContent(Message[] messages) throws Exception {
        List<EmailInfo> emailInfoList = Lists.newArrayList();
        for (Message message : messages) {
            emailInfoList.add(getReceivedEmailContent(message));
        }
        return emailInfoList;
    }

    /**
     * 获取邮件信息，仅支持除文本邮件
     *
     * @param message
     * @return
     * @throws Exception
     */
    public static EmailInfo getReceivedEmailContent(Message message) throws Exception {
        EmailInfo emailInfo = new EmailInfo();
        InternetAddress[] fromAddress = (InternetAddress[]) message.getFrom();
        InternetAddress[] recipientAddress = (InternetAddress[]) message.getAllRecipients();
        emailInfo.setFrom(fromAddress[0].getAddress());
        List<String> recipientList = Lists.newArrayList();
        for (InternetAddress recipient : recipientAddress) {
            recipientList.add(recipient.getAddress());
        }
        emailInfo.setRecipient(recipientList);
        emailInfo.setSubject(message.getSubject());

        if (message.getContentType().contains(TEXT)) {
            //纯文本 -- 获取html  不包含图片等其他资源
            emailInfo.setContent((String) message.getContent());
        } else {
            //签名信息中含有图片 -- 暂不处理纯文本和图片 获取html内容
            Multipart multipart = (Multipart) message.getContent();
            for (int i = 0; i < multipart.getCount(); i++) {
                BodyPart bodyPart = multipart.getBodyPart(i);
                if (!bodyPart.getContentType().contains(TEXT)) {
                    Multipart part = (Multipart) bodyPart.getContent();
                    for (int j = 0; j < part.getCount(); j++) {
                        BodyPart bodyPart1 = part.getBodyPart(j);
                        if (bodyPart1.getContentType().contains(TEXT_HTML)) {
                            emailInfo.setContent(bodyPart1.getContent().toString());
                            break;
                        }
                    }
                } else if (bodyPart.getContentType().contains(TEXT_HTML)) {
                    emailInfo.setContent(bodyPart.getContent().toString());
                    break;
                }
                if (StringUtils.isNotBlank(emailInfo.getContent())) {
                    break;
                }
            }
        }
        return emailInfo;
    }

    /**
     * 获取收件箱
     *
     * @param receiveEntity
     * @return
     * @throws Exception
     */
    public static Folder getInBox(ReceiveEntity receiveEntity) throws Exception {
        Properties props = new Properties();

        props.setProperty("mail.imap.host", receiveEntity.getHost());

        props.put("mail.smtp.auth", true);
        props.put("mail.smtps.ssl.protocols", "TSLv1 TSLv1.1 TLSv1.2");
        props.put("mail.transport.protocol", "imap");
        props.put("mail.smtp.ssl.ciphersuites", "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, TLS_DH_anon_WITH_AES_128_GCM_SHA256, TLS_DH_anon_WITH_AES_128_CBC_SHA256, TLS_ECDH_anon_WITH_AES_128_CBC_SHA, TLS_DH_anon_WITH_AES_128_CBC_SHA, TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA, SSL_DH_anon_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_DES_CBC_SHA, SSL_DHE_RSA_WITH_DES_CBC_SHA, SSL_DHE_DSS_WITH_DES_CBC_SHA, SSL_DH_anon_WITH_DES_CBC_SHA, SSL_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA, TLS_RSA_WITH_NULL_SHA256, TLS_ECDHE_ECDSA_WITH_NULL_SHA, TLS_ECDHE_RSA_WITH_NULL_SHA, SSL_RSA_WITH_NULL_SHA, TLS_ECDH_ECDSA_WITH_NULL_SHA, TLS_ECDH_RSA_WITH_NULL_SHA, TLS_ECDH_anon_WITH_NULL_SHA, SSL_RSA_WITH_NULL_MD5, TLS_KRB5_WITH_3DES_EDE_CBC_SHA, TLS_KRB5_WITH_3DES_EDE_CBC_MD5, TLS_KRB5_WITH_DES_CBC_SHA, TLS_KRB5_WITH_DES_CBC_MD5, TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA, TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5");

        // 创建session实例对象
        Session session = Session.getInstance(props);
        session.setDebug(true);
        // 创建IMAP协议的Store对象
        Store store = session.getStore("imap");
        // 连接邮件服务器
        store.connect(receiveEntity.getReceiver(), receiveEntity.getPassword());
        // 获得收件箱
        Folder folder = store.getFolder("INBOX");
        // 以读写模式打开收件箱
        folder.open(Folder.READ_WRITE);
        return folder;
    }
}
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