[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");
}
}
```
SpringBoot 发送邮件
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