1.新增依賴

在pom.xml中新增下面的依賴

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

2、新增郵件配置引數 

（1）yml配置,(注意：mail中host的配置字首需要是stmp),郵件可以是QQ，163，126等

spring:
  # 外接jdbc和log配置檔案
  profiles:
    # 外接jdbc和log配置檔案
    active: jdbc,log,redis
# 快取配置
  cache:
    type: ehcache
    ehcache:
      config: classpath:ehcache.xml
  # thymeleaf配置
  thymeleaf:
    prefix: classpath:/templates/
    check-template-location: true
    suffix: .html
    encoding: UTF-8
    content-type: text/html
    mode: HTML5
    cache: false
 # main配置
  mail:
    host: smtp.228.com.cn
    username: 
 
[email protected]
    password: xxxxxx
    protocol: smtp
    port: 25

（2）properties配置

spring.mail.default-encoding=utf-8
spring.mail.host=smtp.228.com.cn
[email protected]
spring.mail.password=xxxx
spring.mail.protocol=smtp
spring.mail.port=25

3、測試demo

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class MailController {
    @Autowired
    JavaMailSender javaMailSender;
    @RequestMapping("/sendMail")
    public String sendMain(){
        //建立郵件訊息
        SimpleMailMessage simpleMailMessage=new SimpleMailMessage();
        //訊息傳送者
        simpleMailMessage.setFrom("
 
[email protected]");
        //接受者
        simpleMailMessage.setTo("[email protected]");
        //訊息標題
        simpleMailMessage.setSubject("測試啊");
        //內容
        simpleMailMessage.setText("哈嘍啊");

        try {
            javaMailSender.send(simpleMailMessage);
        } catch (MailException ex) {
            System.err.println(ex.getMessage());
            return "fail";
        }
        return "success";
    }
}
 

4、測試

測試結果：