Spring Boot配置_实现发送简单邮件（以163邮箱为例）

spring boot 2.0集成配置，实现发送简单邮件功能（以163邮箱为例）

                                                                         ——————来自一个小白(●'◡'●)

首先，当然是添加<依赖（starter模块…）>啦~

		>
			>org.springframework.boot>
			>spring-boot-starter-mail>
		>
		>
			>org.springframework>
			>spring-context-support>
			>RELEASE>
		>
        >
            >com.sun.mail>
            >javax.mail>
            >RELEASE>
        >

蓝后，添加配置文件（以163邮箱为例）

spring.application.name=mail

spring.mail.host=smtp.163.com
[email protected]
spring.mail.password="注意这里！你邮箱的客户端授权密码哟"
spring.mail.default-encoding=UTF-8

[email protected]

再蓝后，附一下代码
咳咳…service层

package com.example.mail.service;

public interface MailService {

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

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

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

    void sendInlineResourceMail(String to, String subject, String content, String resPath, String resId);
}

package com.example.mail.service.impl;

import com.example.mail.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.Service;

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

@Service
public class MailServiceImpl implements MailService {

	private final Logger logger = LoggerFactory.getLogger(this.getClass());
	
    @Autowired
    private JavaMailSender mailSender;

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

    /**
     * 发送最简单的文本邮件
     */
    @Override
    public void sendSimpleMail(String to, String subject, String content) {
        try{
            SimpleMailMessage simpleMailMessage= new SimpleMailMessage();
            simpleMailMessage.setFrom(from);
            simpleMailMessage.setTo(to);
            simpleMailMessage.setSubject(subject);
            simpleMailMessage.setText(content);
            mailSender.send(simpleMailMessage);
            logger.info("邮件已发送成功!");
        } catch (Exception e) {
            logger.error("发送邮件时发生异常!",e);
        }
    }

    /**
     * 发送html邮件
     */
    @Override
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = mailSender.createMimeMessage();
        try {
            //这里的true表示需要创建一个multipart message
            MimeMessageHelper messageHelper = new MimeMessageHelper(message, true);
            messageHelper.setFrom(from);
            messageHelper.setTo(to);
            messageHelper.setSubject(subject);
            messageHelper.setText(content);
            mailSender.send(message);
            logger.info("邮件发送成功! ");
        } catch (MessagingException e) {
            logger.error("发送邮件时发生异常!", e);
        }
    }

    /**
     * 发送带有附件的邮件
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath){
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message, true);
            mimeMessageHelper.setFrom(from);
            mimeMessageHelper.setTo(to);
            mimeMessageHelper.setSubject(subject);
            mimeMessageHelper.setText(content,true);

            FileSystemResource fileSystemResource = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            mimeMessageHelper.addAttachment(fileName,fileSystemResource);

            mailSender.send(message);
            logger.info("邮件已经发送成功! ");
        } catch (MessagingException e) {
            logger.error("发送邮件时发生异常!", e);
        }
    }

    /**
     * 发送邮件中带有图片的邮件
     */
    public void sendInlineResourceMail(String to, String subject, String content, String resPath, String resId){
        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 resource = new FileSystemResource(new File(resPath));
            Helper.addAttachment(resId,resource);

            mailSender.send(message);
            logger.info("邮件已经发送成功! ");
        } catch (MessagingException e) {
            logger.error("发送邮件时发生异常!", e);
        }
    }
}

最后，就是测试一下啦(●’◡’●)

package com.example.mail.service;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

@SpringBootTest
public class MailServiceTest {

    @Autowired
    private MailService mailService;

    @Test
    public void testSimpleMail() throws Exception {
        mailService.sendSimpleMail("[email protected]","测试发送简单邮件"," Hello, this is simple mail!");
    }

    @Test
    public void testHtmlMail() throws Exception {
        String content="\n" +
                "\n" +
                "    
hello world ! 这是一封html邮件!
\n" +
                "\n" +
                "";
        mailService.sendHtmlMail("[email protected]","测试发送html邮件",content);
    }

    @Test
    public void sendAttachmentsMail() {
        String filePath="d:\\BaiduNetdiskDownload\\spring-boot-book.pdf";
        mailService.sendAttachmentsMail("[email protected]", "主题: 您有一封邮件待查看", "附上example文件,请查收! ", filePath);
    }

    @Test
    public void sendInlineResourceMail() {
        String resId = "dan.J";
        String content="\n" +
                "\n" +
                "这是一封有图片的邮件哦! O(∩_∩)O  + resId + "\' >\n" +
                "\n" +
                "";
        String imgPath = "C:\\Users\\Amanda\\Pictures\\Camera Roll\\test.jpg";

        mailService.sendInlineResourceMail("[email protected]", "主题: 您有一封邮件待查看", content, imgPath, resId);
    }

最最后，附上效果图
Ⅰ.发送简单文本邮件

Ⅱ.发送html邮件

Ⅲ.发送带有附件的邮件

Ⅳ.发送附有图片的邮件（下载即可）

先介绍这里吧，多的也不会了hhhhh…