使用spring-boot-starter-mail发送邮件

1.添加pom.xml依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="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">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.wangxh.email</groupId>
	<artifactId>email-study</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>email-study</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.8.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

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

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

2.配置邮件发送服务端地址和账号

application.properties:

#邮件发送人配置
spring.mail.host=*********
spring.mail.username=********
spring.mail.password=*******
spring.mail.port=*****
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

username和passowrd是发送邮件的账户；

host:是发送邮件的服务器，不是收件服务器

这里可以通过foxmail查看：

比如发送的是163账号那么配置如下：

spring.mail.host=smtp.163.com

spring.mail.port=25

3.发送邮件工具类

package com.wangxh.email.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.mail.MailProperties;
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 EmailService {
    @Autowired
    private JavaMailSender javaMailSender;

    @Autowired
    MailProperties mailProperties;

    /**
     * 发送纯文本邮件
     *
     * @param text    邮件文本
     * @param to      接收人的邮箱
     * @param subject 邮件主题
     */

    public void sendTextEmail(String text, String to, String subject) {
        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
        simpleMailMessage.setSubject(subject);
        simpleMailMessage.setText(text);
        simpleMailMessage.setFrom(mailProperties.getUsername());
        simpleMailMessage.setTo(to);

        javaMailSender.send(simpleMailMessage);
    }

    /**
     * 发送网页邮件
     *
     * @param html    网页
     * @param to      接收人的邮箱
     * @param subject 邮件主题
     */
    public void sendHtmlEmail(String html, String to, String subject) {
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
            helper.setFrom(mailProperties.getUsername());
            helper.setTo(to);
            helper.setSubject(subject);
            // "<html><body><img src='http://baidu.com/2/1.jpg' ></body></html>"
            helper.setText(html, true);
        } catch (MessagingException e) {
            e.printStackTrace();
        }


        javaMailSender.send(mimeMessage);
    }

    /**
     * 发送附件的邮件
     *
     * @param to      接收人的邮箱
     * @param subject 邮件主题
     * @param text 邮件文本
     * @param files   附件的文件地址 c:xxx.jpg
     */

    public void sendAttachmentsMail(String to, String subject,String text, String... files) {
        try {
            MimeMessage mimeMessage = javaMailSender.createMimeMessage();

            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
            helper.setFrom(mailProperties.getUsername());
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(text);


            if (files!=null){
                for (String f:files){
                    FileSystemResource file = new FileSystemResource(new File(f));
                    helper.addAttachment("附件-1.jpg", file);
                    helper.addAttachment("附件-2.jpg", file);
                }
            }
            javaMailSender.send(mimeMessage);
        } catch (MessagingException e) {
            e.printStackTrace();
        } finally {
        }
    }
}

spring-boot-starter-mail

1.添加pom.xml依赖

2.配置邮件发送服务端地址和账号

3.发送邮件工具类

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