邮件发送工具类（转）

package com.yc.utils;

import com.sun.xml.internal.messaging.saaj.packaging.mime.MessagingException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.mail.internet.MimeMessage;
import java.io.File;

@Service
public class messageSendUtil {
          
   @Value("${spring.mail.username}")
private String from;

    @Autowired
    private JavaMailSender mailSender;

    /**
     * 设置邮件附件名不被截取,解决附件中文名乱码问题
     */
    public messageSendUtil() {
          
   
        System.setProperty("mail.mime.splitlongparameters", "false");
    }

    /**
     * 简单文本邮件
     *
     * @param to      接收者邮件
     * @param subject 邮件主题
     * @param content 邮件内容
     */
    public void sendSimpleMail(String to, String subject, String content) {
          
   

        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        message.setFrom(from);

        mailSender.send(message);
    }

    /**
     * HTML 文本邮件
     *
     * @param to      接收者邮件
     * @param subject 邮件主题
     * @param content HTML内容
     * @throws MessagingException
     */
    public void sendHtmlMail(String to, String subject, String content) throws MessagingException, MessagingException, javax.mail.MessagingException {
          
   
        MimeMessage message = mailSender.createMimeMessage();

        MimeMessageHelper helper = new MimeMessageHelper(message, true);
        helper.setTo(to);
        helper.setSubject(subject);
        helper.setText(content, true);
        helper.setFrom(from);

        mailSender.send(message);
    }

    /**
     * 附件邮件
     *
     * @param to       接收者邮件
     * @param subject  邮件主题
     * @param content  HTML内容
     * @param filePath 附件路径
     * @throws MessagingException
     */
    public void sendAttachmentsMail(String to, String subject, String content,
                                    String filePath) throws MessagingException, javax.mail.MessagingException {
          
   
        MimeMessage message = mailSender.createMimeMessage();

        MimeMessageHelper helper = new MimeMessageHelper(message, true);
        helper.setTo(to);
        helper.setSubject(subject);
        helper.setText(content, true);
        helper.setFrom(from);

        FileSystemResource file = new FileSystemResource(new File(filePath));
        String fileName = file.getFilename();
        helper.addAttachment(fileName, file);

        mailSender.send(message);
    }

    /**
     * 图片邮件
     *
     * @param to      接收者邮件
     * @param subject 邮件主题
     * @param content HTML内容
     * @param rscPath 图片路径
     * @param rscId   图片ID
     * @throws MessagingException
     */
    public void sendInlinkResourceMail(String to, String subject, String content,
                                       String rscPath, String rscId) {
          
   
        System.out.printf("发送静态邮件开始: {},{},{},{},{}", to, subject, content, rscPath, rscId);

        MimeMessage message = mailSender.createMimeMessage();
        MimeMessageHelper helper = null;

        try {
          
   

            helper = new MimeMessageHelper(message, true);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            helper.setFrom(from);

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);
            mailSender.send(message);
            System.out.printf("发送静态邮件成功!");

        } catch (  javax.mail.MessagingException e) {
          
   
            System.out.printf("发送静态邮件失败: ", e);
        }

    }

}

配置文件