java spring boot发送邮件

一、依赖包

        <!-- 邮件服务 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-mail</artifactId>
		</dependency>
        <dependency>
			<groupId>javax.mail</groupId>
			<artifactId>mail</artifactId>
			<version>1.4.7</version>
		</dependency>

二、配置文件

#邮箱信息
#QQ邮件服务地址
spring.mail.host: smtp.exmail.qq.com
#用户名
spring.mail.username: 邮箱用户名
#密码（授权码）
spring.mail.password: 邮箱密码
#默认编码UTF-8
spring.mail.default: encoding=UTF-8
#端口
spring.mail.port: 465
#邮件发送者
spring.mail.mailFrom: 发件方
#邮件发送者名称
spring.mail.mailFromName: 发送方名称
spring.mail.properties.mail.smtp.auth: true
spring.mail.properties.mail.smtp.starttls.enable: true
spring.mail.properties.mail.smtp.starttls.required: true
#SSL证数
spring.mail.properties.mail.smtp.ssl.enable: true
spring.mail.properties.mail.imap.ssl.socketFactory.fallback: false
spring.mail.properties.mail.smtp.ssl.socketFactory.class: com.fintech.modules.base.util.mail.MailSSLSocketFactory

三、代码

package com.zbjf.common.utils;

import java.io.File;
import java.util.List;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;

public class EmailUtils {

	private static Logger log = LoggerFactory.getLogger(EmailUtils.class);
    private JavaMailSender mailSender;//spring 提供的邮件发送类
    private String from;
	/**
	 * @param mailFrom  
	 * @param mailFromName 
	 */
	public EmailUtils(JavaMailSender mailSender,String mailFrom,String mailFromName)
	{
		this.from = mailFromName+"<"+mailFrom+">";  //mailFrom;
		this.mailSender=mailSender;
	} 
	
	/**
	 * 发送简单邮件
	 * @param to  收件人
	 * @param subject  主题
	 * @param content  内容
	 */
	public void sendSimpleEmail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();//创建简单邮件消息
        message.setFrom(from);//设置发送人
        message.setTo(to);//设置收件人

        /* String[] adds = {"[email protected]","[email protected]"}; //同时发送给多人
        message.setTo(adds);*/

        message.setSubject(subject);//设置主题
        message.setText(content);//设置内容
        try {
            mailSender.send(message);//执行发送邮件
        } catch (Exception e) {
	    	log.error("发送简单邮件异常："+e.toString());
        }
    }

	/**
	 * 发送Html邮件
	 * @param to  收件人
	 * @param subject  主题
	 * @param content  内容
	 */
    public void sendHtmlEmail(String to, String subject, String content) {
        MimeMessage message = mailSender.createMimeMessage();//创建一个MINE消息

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            mailSender.send(message);
        } catch (MessagingException e) {
	    	log.error("发送Html邮件异常："+e.toString());
        } catch(Exception e)
        {
	    	log.error("发送Html邮件异常："+e.toString());
        }
    }

	/**
	 * 发送带附件Html邮件
	 * @param to  收件人
	 * @param subject  主题
	 * @param content  内容
	 */
    public void sendAttachmentsEmail(String to, String subject, String content,List<String> filePathList) {
        try {
            MimeMessage message = mailSender.createMimeMessage();//创建一个MINE消息
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);// true表示这个邮件是有附件的

            if(filePathList != null && filePathList.size() > 0)
            {
            	for(String filePath:filePathList)
            	{
            		File f =new File(filePath);
            		if(f.exists())
            		{
                        /*FileSystemResource file = new FileSystemResource(new File(filePath));//创建文件系统资源*/
                        String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
                        byte[] aa= FileUtils.getBytes(f);
                        helper.addAttachment(fileName,new ByteArrayResource(aa));//添加附件
            		}
            	}
            }
            mailSender.send(message);
        } catch (MessagingException e) {
	    	log.error("发送带附件Html邮件异常1：",e);
        } catch(Exception e)
        {
	    	log.error("发送带附件Html邮件异常2：",e);
        }
    }

	
}