25、springboot发送邮件

虽然现在短信验证已经最流行也是最常用的验证方式；但是邮件验证还是必不可少，依然是网站的必备功能之一。什么注册验证，忘记密码或者是给用户发送营销信息都是可以使用邮件发送功能的。最早期使用JavaMail的相关api来进行发送邮件的功能开发，后来spring整合了JavaMail的相关api推出了JavaMailSender更加简化了邮件发送的代码编写，现在springboot对此进行了封装就有了现在的spring-boot-starter-mail。

 

1、 新建项目sc-mail，对应的pom.xml文件如下 

 

"http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

 

spring-cloud

sc-mail

0.0.1-SNAPSHOT

jar

 

sc-mail

http://maven.apache.org



org.springframework.boot

spring-boot-starter-parent

2.0.4.RELEASE



 







org.springframework.cloud

spring-cloud-dependencies

Finchley.RELEASE

pom

import



 





 



UTF-8

1.8

1.8



 



 



org.springframework.boot

spring-boot-starter-mail



 

 



org.springframework.boot

spring-boot-starter-test

test



 

 

 

2、 新建配置文件application.yml

 

spring:

  application:

    name: sc-mail

  mail:

    host: smtp.qq.com #邮箱服务器地址

    port: 465

    username: 515768476@qq.com #用户名

    password: vfcqhwsnnwugbhcx #密码 （改成自己的密码）

    default-encoding: UTF-8

    properties:

      mail:

        smtp:

          ssl:

            enable:

              true

 

3、 新建邮件发送服务类

 

package sc.mail.service.impl;

 

import java.io.File;

 

import javax.mail.internet.MimeMessage;

 

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

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 sc.mail.service.MailService;

 

@Service

public class MailServiceImpl implements MailService {

 

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

 

@Autowired

private JavaMailSender mailSender;

 

/**

 * 文本

 * @param from

 * @param to

 * @param subject

 * @param content

 */

@Override

public void sendSimpleMail(String from, 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("simple mail had send。");

} catch (Exception e) {

logger.error("send mail error", e);

}

}

 

/**

 * @param from

 * @param to

 * @param subject

 * @param content

 */

public void sendTemplateMail(String from, String to, String subject, String content) {

    MimeMessage message = mailSender.createMimeMessage();

    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);

        logger.info("send template success");

    } catch (Exception e) {

        logger.error("send template eror", e);

    }

}

 

 

/**

 * 附件

 *

 * @param from

 * @param to

 * @param subject

 * @param content

 * @param filePath

 */

public void sendAttachmentsMail(String from, 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);

        mailSender.send(message);

        logger.info("send mail with attach success。");

    } catch (Exception e) {

        logger.error("send mail with attach success", e);

    }

}

 

 

/**

 * 发送内嵌图片

 *

 * @param from

 * @param to

 * @param subject

 * @param content

 * @param imgPath

 * @param imgId

 */

public void sendInlineResourceMail(String from, String to, String subject, String content,

String imgPath, String imgId){

    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(imgPath));

        helper.addInline(imgId, res);

        mailSender.send(message);

        logger.info("send inner resources success。");

    } catch (Exception e) {

        logger.error("send inner resources fail", e);

    }

}

 

}

 

4、 新建测试类

 

package sc.mail;

 

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 sc.mail.service.MailService;

 

@RunWith(SpringRunner.class)

@SpringBootTest

public class MailSendTest {

 

@Autowired

private MailService mailService;

 

@Test

public void sendSimpleMailTest() {

mailService.sendSimpleMail("[email protected]", "[email protected]",

"sendSimpleMailTest", "sendSimpleMailTest from [email protected]");

}

 

@Test

public void sendTemplateMailTest() {

String html = ""

+ " 
 "

+ "    sendTemplateMailTest from [email protected] 
"

+ "    这是模板邮件"

+ ""

+ "";

mailService.sendTemplateMail("[email protected]", "[email protected]",

"sendTemplateMailTest", html);

}

 

@Test

public void sendAttachmentsMailTest() {

String filePath = "D:\\springcloudws\\sc-mail\\src\\main\\java\\sc\\mail\\service\\impl\\MailServiceImpl.java";

mailService.sendAttachmentsMail("[email protected]", "[email protected]",

"sendAttachmentsMailTest", "sendAttachmentsMailTest from [email protected]", filePath);

}

 

@Test

public void sendInlineResourceMailTest() {

String imgId = "img1";

 

String content = ""

+ "sendInlineResourceMailTest：" + imgId + "\' >"

+ "";

 

String imgPath = "D:\\springcloudws\\sc-mail\\src\\main\\resources\\20181015223228.jpg";

 

mailService.sendInlineResourceMail("[email protected]", "[email protected]",

"sendAttachmentsMailTest", content, imgPath, imgId);

}

 

}

 

5、 运行测试类验证是否发送邮件成功

登录[email protected]邮箱

 

 

 

 

简单邮件

 

 

 

 

 

模板邮件

 

 

 

 

附件邮件

 

 

 

 

内嵌图片邮件