SMTP 发送邮件

package com.chengyi.common.service;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
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.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
import javax.mail.util.ByteArrayDataSource;

import org.springframework.stereotype.Service;

@Service
public class MailService {

	// 发送邮件String emailMsg,String users
	public static void sendMail(String users, String msg, String title, String passWord) throws AddressException, MessagingException, UnsupportedEncodingException {

		Message message = initMailInfo(passWord);

		new InternetAddress();
		InternetAddress[] internetAddressTo = InternetAddress.parse(users);

		// 设置发送方式与接收者多人
		message.setRecipients(MimeMessage.RecipientType.TO, internetAddressTo);
		// 设置主题
		message.setSubject(title);
		// 设置内容
		message.setContent(msg, "text/html;charset=utf-8");

		// 3.创建 Transport用于将邮件发送
		Transport.send(message);
	}

	private static Message initMailInfo(String passWord) 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.smtp.host", "***");
		props.setProperty("mail.smtp.port", "**");
		props.setProperty("mail.smtp.ssl.enable", "true");
		// 指定验证为true
		props.setProperty("mail.smtp.auth", "true");
		props.setProperty("mail.smtp.timeout", "12000");
		// 验证账号及密码，密码需要是第三方授权码
		Authenticator auth = new Authenticator() {
			public PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication("*@*.com", passWord);//""
			}
		};
		Session session = Session.getInstance(props, auth);
		session.setDebug(true);
		// 2.创建一个Message，它相当于是邮件内容
		Message message = new MimeMessage(session);
		// 设置发送者
		message.setFrom(new InternetAddress("qq.com"));
		return message;
	}

	public static void sendMail(String users, String msg, String title, InputStream is, String passWord) throws AddressException, MessagingException, IOException {

		Message message = initMailInfo(passWord);

		new InternetAddress();
		InternetAddress[] internetAddressTo = InternetAddress.parse(users);

		// 设置发送方式与接收者多人
		message.setRecipients(MimeMessage.RecipientType.TO, internetAddressTo);
		// 设置主题
		message.setSubject(title);
		// 6. 创建邮件内容"节点"
		MimeBodyPart textBodyPart = new MimeBodyPart();
		textBodyPart.setContent(msg, "text/html;charset=UTF-8");

		// 添加附件节点
		MimeBodyPart fileBodyPart = new MimeBodyPart();
		DataSource source = new ByteArrayDataSource(is, "application/msexcel");
		// 添加附件的内容
		fileBodyPart.setDataHandler(new DataHandler(source));
		// 添加附件的标题
		// 这里很重要，通过下面的Base64编码的转换可以保证你的中文附件标题名在发送时不会变成乱码
		MimeMultipart multipart = new MimeMultipart();
	//	fileBodyPart.setFileName(MimeUtility.encodeText(title + ".xls")); 加了这个编码转换 订单反而 有问题  
//	这个我也不知道为什么 有时候这样 有时候不会
		fileBodyPart.setFileName(MimeUtility.encodeText(title + ".xls"));
		multipart.addBodyPart(fileBodyPart);
		multipart.addBodyPart(textBodyPart);
		message.setContent(multipart);

		// 3.创建 Transport用于将邮件发送
		Transport.send(message);
	}

	public static void sendMail(String users, String ccAdresses, String msg, String title, InputStream is, String passWord) throws AddressException, MessagingException, IOException {

		Message message = initMailInfo(passWord);

		new InternetAddress();
		InternetAddress[] internetAddressTo = InternetAddress.parse(users);
		InternetAddress[] internetAddressCC = InternetAddress.parse(ccAdresses);
		// 设置发送方式与接收者多人
		message.setRecipients(MimeMessage.RecipientType.TO, internetAddressTo);

		//增加抄送人员
		message.setRecipients(MimeMessage.RecipientType.CC, internetAddressCC);

		// 设置主题
		message.setSubject(title);
		// 6. 创建邮件内容"节点"
		MimeBodyPart textBodyPart = new MimeBodyPart();
		textBodyPart.setContent(msg, "text/html;charset=UTF-8");

		// 添加附件节点
		MimeBodyPart fileBodyPart = new MimeBodyPart();
		DataSource source = new ByteArrayDataSource(is, "application/msexcel");
		// 添加附件的内容
		fileBodyPart.setDataHandler(new DataHandler(source));
		// 添加附件的标题
		// 这里很重要，通过下面的Base64编码的转换可以保证你的中文附件标题名在发送时不会变成乱码
		MimeMultipart multipart = new MimeMultipart();
		fileBodyPart.setFileName(MimeUtility.encodeText(title + ".xls"));
		multipart.addBodyPart(fileBodyPart);
		multipart.addBodyPart(textBodyPart);
		message.setContent(multipart);

		// 3.创建 Transport用于将邮件发送
		Transport.send(message);
	}

}

　　上面是邮件工具类   下面是调用方法 

/**
     * 每天中午一点半 执行 
     */
    @Scheduled(cron = "0 30 13 ? * *") // 本地注释掉
    // @Scheduled(cron = "0 0/1 * * * ?") // 本地注释掉 测试 一分钟执行一次
    public void scheduleEvaluationNotice() {

        String serverIP = "";
        try {
            InetAddress address = InetAddress.getLocalHost();
            serverIP = address.getHostAddress();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        String code = sysParameterMapper.queryvalue(ConstantsParameter.TIMECONTROLLER_IDENTIFICATION_fACTORY_CODE);
        if (serverIP.equals("") ) { // 判断服务器IP

        
            try {
                Date date = new Date();
                SimpleDateFormat dateFm = new SimpleDateFormat("E");
                String currSun = dateFm.format(date);

                int weekday = 0;
                if (currSun.equals("星期一")) {
                    weekday = 0;
                } else if (currSun.equals("星期二")) {
                    weekday = 1;
                } else if (currSun.equals("星期三")) {
                    weekday = 2;
                } else if (currSun.equals("星期四")) {
                    weekday = 3;
                } else if (currSun.equals("星期五")) {
                    weekday = 4;
                } else if (currSun.equals("星期六")) {
                    weekday = 5;
                } else if (currSun.equals("星期日")) {
                    weekday = 6;
                }
            
                log.info("判断是否发送邮件  " + date + "--" + currSun + "--" + count + "" + " 
");
                if (Integer.parseInt(count) == weekday) {
                    sendMail();
                }
            } catch (Exception e) {
                log.info("发送失败
");
                System.out.println(e)

            }
        }

    }

    public void sendMail() {
        ExcelGenerate excelGenerate = null;
        try {
            List<Object> export2 = rbbSchedulingService.getExport(new ScheduleEvaluationModel(), "考评", excelGenerate, "Y");
            ExcelGenerate export = (ExcelGenerate) export2.get(0);
            @SuppressWarnings("unchecked")
            List<ScheduleEvaluationModel> list2 = (List<ScheduleEvaluationModel>) export2.get(1);
            // 获取输出流
            InputStream input = null;

            // 获取输出流
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            export.write(bos);
            input = new ByteArrayInputStream(bos.toByteArray());

            List<String> mailaddress = mstOrganizationMailMapper.getMailaddress();
            if (mailaddress.size() > 0) {
                String users = String.join(",", mailaddress);
                
                MailService.sendMail(users, getTableStart(list2).toString(), "系统自动发送", input, sysParameterMapper.queryvalue(ConstantsParameter.EXMAIL_PASSWORD));
                log.info("发送成功
");
            }
        } catch (Exception e) {
            log.info("发送失败
");
            System.out.println(e);
        }

    }

    public StringBuilder getTableStart(List<ScheduleEvaluationModel> list2) {
        StringBuilder table = new StringBuilder();
        table.append("    <html>");
        table.append("     <head>");
        table.append("      <title> New Document </title>");
        table.append("     </head>");
        table.append("     <body>");
        table.append("***********略***************");
        
        table.append("       </table></body></html>  ");
        return table;
    }

这两个搭配使用