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springboot系列（011）之发送邮件

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邮件发送本是一件比较复杂的过程、自从邮件发送被封装到spring-boot-starter-mail.jar中、在spring boot项目中引入spring-boot-starter-mail.jar后发送邮件就是一件相当方便的工作.

一、引入依赖

为了方便引入spring-boot-starter-web.jar

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<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
    <version>2.1.13.RELEASE</version>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>2.1.13.RELEASE</version>
</dependency>

二、配置（application.yml)

配置smtp、发送方账号密码。
SMTP地址：腾讯企业邮箱smtp使用smtp.exmail.qq.com；腾讯个人邮箱使用smtp.qq.com；163邮箱使用smtp.163.com

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spring:
  mail:
    host: smtp.qiye.aliyun.com
    username: xxx@xx.com
    password: xxxxxx

三、使用JavaMailSender

1、发送简易消息体SimpleMailMessage

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package net.zuze.controller;

import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.mail.MessagingException;

/**
 * @author Administrator
 * @date 2022/12/5
 **/
@RestController
@RequestMapping("/")
@Api("邮件")
public class IndexController {

    @Resource
    JavaMailSender javaMailSender;

    /**
     *    发送简易邮件
     */
    @PostMapping("sendMail")
    public void sendMail() throws MessagingException {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom("from@xx.com");
        message.setTo("to@xx.com");
        message.setSubject("subject-测试");
        message.setText("text测试");
        javaMailSender.send(message);
    }
}

2、发送复杂邮件

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package net.zuze.controller;

import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

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

/**
 * @author Administrator
 * @date 2022/12/5
 **/
@RestController
@RequestMapping("/")
public class IndexController {

    @Resource
    JavaMailSender javaMailSender;


    /**
     *    发送复杂邮件
     */
    @PostMapping("sendComplexMail")
    public void sendComplexMail() throws Exception{
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper = new MimeMessageHelper(message);
        messageHelper.setFrom("from@xx.com");
        messageHelper.setTo("to@xx.com");
        messageHelper.setSubject("subject-测试");
        messageHelper.setText("text-测试");
        //带附件
        messageHelper.addAttachment("attachmentName",new File("attachmentPath"));
    }

}