公司内部邮箱服务器发送邮件 java版

女爷i 2022-05-28 03:17 136阅读 0赞

原文链接：[https://blog.csdn.net/jsjsjs1789/article/details/53352409][https_blog.csdn.net_jsjsjs1789_article_details_53352409]

**背景：**

由于需要给合作方以压缩包的形式每天返回数据，基于我们自己写的分布式程序，而月末通过返回的数据，来与合作方进行对账，所以每天数据返回的成败就至关重要了，但又懒得每天去查看日志，刚好借助一下公司内部的邮件服务器。

go、go、go

package test.util;
    
    import org.apache.log4j.Logger;
    
    import javax.activation.DataHandler;
    import javax.activation.FileDataSource;
    import javax.mail.*;
    import javax.mail.internet.*;
    import java.io.UnsupportedEncodingException;
    import java.util.Date;
    import java.util.Properties;
    
    /** * Created by shengjk1 on 2016/11/4. * Blog Address:http://blog.csdn.net/jsjsjs1789 */
    public class SendMail { 
        private static Logger logger = Logger.getLogger(SendMail.class);
        private static SendMail instance = null;
    
        private SendMail() {
    
        }
    
        public static SendMail getInstance() {
            if (instance == null) {
                instance = new SendMail();
            }
            return instance;
        }
    
        public void send(String to[], String cs[], String ms[], String subject,
                String content, String formEmail, String fileList[]) {
            try {
                Properties p = new Properties(); // Properties p =
                // System.getProperties();
                p.put("mail.smtp.auth", "true");
                p.put("mail.transport.protocol", "smtp");
                p.put("mail.smtp.host", "xxxxx");//邮件服务器的地址
                p.put("mail.smtp.port", "25");
                // 建立会话
                Session session = Session.getInstance(p);
                Message msg = new MimeMessage(session); // 建立信息
                BodyPart messageBodyPart = new MimeBodyPart();
                Multipart multipart = new MimeMultipart();
                msg.setFrom(new InternetAddress(formEmail)); // 发件人
    
                String toList = null;
                String toListcs = null;
                String toListms = null;
    
                // 发送,
                if (to != null) {
                    toList = getMailList(to);
                    new InternetAddress();
                    InternetAddress[] iaToList = InternetAddress
                            .parse(toList);
                    msg.setRecipients(Message.RecipientType.TO, iaToList); // 收件人
                }
    
                // 抄送
                if (cs != null) {
                    toListcs = getMailList(cs);
                    new InternetAddress();
                    InternetAddress[] iaToListcs = InternetAddress
                            .parse(toListcs);
                    msg.setRecipients(Message.RecipientType.CC, iaToListcs); // 抄送人
                }
    
                // 密送
                if (ms != null) {
                    toListms = getMailList(ms);
                    new InternetAddress();
                    InternetAddress[] iaToListms = InternetAddress
                            .parse(toListms);
                    msg.setRecipients(Message.RecipientType.BCC, iaToListms); // 密送人
                }
                msg.setSentDate(new Date()); // 发送日期
                msg.setSubject(subject); // 主题
                msg.setText(content); // 内容
                // 显示以html格式的文本内容
                messageBodyPart.setContent(content, "text/html;charset=utf-8");
                multipart.addBodyPart(messageBodyPart);
    
                // 2.保存多个附件
                if (fileList != null) {
                    addTach(fileList, multipart);
                }
    
                msg.setContent(multipart);
                // 邮件服务器进行验证
                Transport tran = session.getTransport("smtp");
                tran.connect("xxx", //邮件服务器地址 
                "shengjk1@xxx.cn",//邮箱地址
                        "p@ssw0rd");//邮箱的密码
                tran.sendMessage(msg, msg.getAllRecipients()); // 发送
                System.out.println("邮件发送成功");
    
            } catch (Exception e) {
                logger.info("邮件发送时异常",e);
            }
        }
    
        // 添加多个附件
        public void addTach(String fileList[], Multipart multipart)
                throws MessagingException, UnsupportedEncodingException {
            for (int index = 0; index < fileList.length; index++) {
                MimeBodyPart mailArchieve = new MimeBodyPart();
                FileDataSource fds = new FileDataSource(fileList[index]);
                mailArchieve.setDataHandler(new DataHandler(fds));
                mailArchieve.setFileName(MimeUtility.encodeText(fds.getName(),
                        "utf-8", "B"));
                multipart.addBodyPart(mailArchieve);
            }
        }
    
        private String getMailList(String[] mailArray) {
    
            StringBuffer toList = new StringBuffer();
            int length = mailArray.length;
            if (mailArray != null && length < 2) {
                toList.append(mailArray[0]);
            } else {
                for (int i = 0; i < length; i++) {
                    toList.append(mailArray[i]);
                    if (i != (length - 1)) {
                        toList.append(",");
                    }
    
                }
            }
            return toList.toString();
    
        }
        public static void forSend(String subject,String content){
            SendMail send = SendMail.getInstance();
            String to[] = { "shengjk1@xxx.cn"};//收件人的地址
            String cs[] = null;
            String ms[] = null;
    
            if(content==null||content.length()==0){
                content = "这是邮件内容，仅仅是测试，不需要回复";
            }
            String fromEmail = "shengjk1@xxx.cn";//发件人的地址
            String[] arrArchievList = null;
    
            // 2.保存多个附件
            send.send(to, cs, ms, subject, content, fromEmail, arrArchievList);
        }
    
    // public static void main(String args[]) { 
    // forSend(null);
    // }
    
    }
       
        
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pom.xml文件

<dependency>
          <groupId>javax.mail</groupId>
          <artifactId>mail</artifactId>
          <version>1.4</version>
        </dependency>
       
        
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[https_blog.csdn.net_jsjsjs1789_article_details_53352409]: https://blog.csdn.net/jsjsjs1789/article/details/53352409