[TOC] # E-Mail ## 一、添加依赖 ```xml <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency> ``` ## 二、配置 application.yml ```yml spring: mail: host: smtp.qq.com port: 587 username: xxxxxxxx@qq.com # 发送的邮件账户 password: uugmjyaxxxxxxxx # 授权码 protocol: smtp default-encoding: UTF-8 properties: mail.smtp.auth: true mail.smtp.starttls.enable: true mail.smtp.starttls.required: true mail.smtp.socketFactory.port: 465 mail.smtp.socketFactory.class: javax.net.ssl.SSLSocketFactory mail.smtp.socketFactory.fallback: false ``` ## 三、工具类 ```java package com.common.util; import lombok.*; import lombok.extern.slf4j.Slf4j; 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; /** * @author eddie.lee * @className MailUtils * @description * @date created in 2020-09-28 13:48 * @modified by */ @Slf4j @Service @RequiredArgsConstructor(onConstructor = @__(@Autowired)) public class MailUtils { private final JavaMailSender javaMailSender; @Value("${spring.mail.username}") private String username; /** * 发送文本邮件 * * @param to * @param subject * @param content */ public void sendTextMail(String to, String subject, String content) { SimpleMailMessage simpleMailMessage = new SimpleMailMessage(); simpleMailMessage.setFrom(username); simpleMailMessage.setTo(to); simpleMailMessage.setSubject(subject); simpleMailMessage.setText(content); javaMailSender.send(simpleMailMessage); } /** * 发送网页邮件 * * @param to * @param subject * @param content */ public void sendHtmlMail(String to, String subject, String content) { MimeMessage message = javaMailSender.createMimeMessage(); MimeMessageHelper messageHelper; try { messageHelper = new MimeMessageHelper(message, true); messageHelper.setFrom(username); messageHelper.setTo(to); messageHelper.setSubject(subject); messageHelper.setText(content, true); javaMailSender.send(message); } catch (MessagingException e) { log.error("发送邮件时发生异常: ", e); } } /** * 发送附件的邮件 * * @param to * @param subject * @param content * @param filePath */ public void sendAttachmentsMail(String to, String subject, String content, String filePath) { MimeMessage message = javaMailSender.createMimeMessage(); try { MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(username); 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); javaMailSender.send(message); // 日志信息 } catch (MessagingException e) { log.error("发送邮件时发生异常: ", e); } } } ``` ## 四、测试类 ```java package com.test; import com.common.util.MailUtils; 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; /** * @author eddie.lee * @className MailTest * @description * @date created in 2020-09-28 13:48 * @modified by */ @RunWith(SpringRunner.class) @SpringBootTest public class MailTest { @Autowired private MailUtils mailUtils; @Test public void test1(){ mailUtils.sendTextMail("xxxxx@qq.com","主题"," 内容"); } } ```