springboot:郵件服務

1.pom引入

<dependencies>
	<dependency> 
	    <groupId>org.springframework.boot</groupId>
	    <artifactId>spring-boot-starter-mail</artifactId>
	</dependency> 
</dependencies>

2.在application.properties中配置郵箱信息

spring.mail.host=smtp.qiye.163.com //郵箱服務器地址
[email protected] //用戶名
spring.mail.password=xxyyooo    //密碼
spring.mail.default-encoding=UTF-8

[email protected]  //以誰來發送郵件

3.編寫MailService

public interface MailService {

    public void sendSimpleMail(String to, String subject, String content);

    public void sendHtmlMail(String to, String subject, String content);

    public void sendAttachmentsMail(String to, String subject, String content, String filePath);

    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId);

}

4.編寫實現類

package com.neo.service.impl;

import com.neo.service.MailService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.Component;

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


@Component
public class MailServiceImpl implements MailService{

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Autowired
    private JavaMailSender mailSender;

    @Value("${mail.fromMail.addr}")
    private String from;

    /**
     * 發送文本郵件
     * @param to
     * @param subject
     * @param content
     */
    @Override
    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);

        try {
            mailSender.send(message);
            logger.info("簡單郵件已經發送。");
        } catch (Exception e) {
            logger.error("發送簡單郵件時發生異常！", e);
        }

    }

    /**
     * 發送html郵件
     * @param to
     * @param subject
     * @param content
     */
    @Override
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = mailSender.createMimeMessage();

        try {
            //true表示需要創建一個multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            mailSender.send(message);
            logger.info("html郵件發送成功");
        } catch (MessagingException e) {
            logger.error("發送html郵件時發生異常！", e);
        }
    }


    /**
     * 發送帶附件的郵件
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath){
        MimeMessage message = mailSender.createMimeMessage();

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

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);
            //helper.addAttachment("test"+fileName, file);

            mailSender.send(message);
            logger.info("帶附件的郵件已經發送。");
        } catch (MessagingException e) {
            logger.error("發送帶附件的郵件時發生異常！", e);
        }
    }


    /**
     * 發送正文中有靜態資源（圖片）的郵件
     * @param to
     * @param subject
     * @param content
     * @param rscPath
     * @param rscId
     */
    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId){
        MimeMessage message = mailSender.createMimeMessage();

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

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);

            mailSender.send(message);
            logger.info("嵌入靜態資源的郵件已經發送。");
        } catch (MessagingException e) {
            logger.error("發送嵌入靜態資源的郵件時發生異常！", e);
        }
    }
}

5.編寫測試類

package com.neo.service;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

/**
 * Created by summer on 2017/5/4.
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class MailServiceTest {

    @Autowired
    private MailService mailService;

    @Autowired
    private TemplateEngine templateEngine;

    @Test
    public void testSimpleMail() throws Exception {
        mailService.sendSimpleMail("[email protected]","test simple mail"," hello this is simple mail");
    }

    @Test
    public void testHtmlMail() throws Exception {
        String content="<html>\n" +
                "<body>\n" +
                "    <h3>hello world ! 這是一封html郵件!</h3>\n" +
                "</body>\n" +
                "</html>";
        mailService.sendHtmlMail("[email protected]","test simple mail",content);
    }

    @Test
    public void sendAttachmentsMail() {
        String filePath="e:\\tmp\\application.log";
        mailService.sendAttachmentsMail("[email protected]", "主題：帶附件的郵件", "有附件，請查收！", filePath);
    }


    @Test
    public void sendInlineResourceMail() {
        String rscId = "neo006";
        String content="<html><body>這是有圖片的郵件：<img src=\'cid:" + rscId + "\' ></body></html>";
        String imgPath = "C:\\Users\\summer\\Pictures\\favicon.png";

        mailService.sendInlineResourceMail("[email protected]", "主題：這是有圖片的郵件", content, imgPath, rscId);
    }


    @Test
    public void sendTemplateMail() {
        //創建郵件正文
        Context context = new Context();
        context.setVariable("id", "006");
        String emailContent = templateEngine.process("emailTemplate", context);

        mailService.sendHtmlMail("[email protected]","主題：這是模板郵件",emailContent);
    }
}