Spring boot 中发送邮件

参考：https://blog.csdn.net/qq_39241443/article/details/81293939

添加依赖:

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

添加配置：邮箱不同配置不同

spring:
  mail:
    host: smtp.163.com
    username: 15217742393@163.com
    password: 授权码
    default-encoding: UTF-8

发送简单文本：

package com.wct.send;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.stereotype.Component;

@Component
public class SendTextMail{

    @Autowired
    private JavaMailSender mailSender;

    @Value("${spring.mail.username}")
    private String from;

    public void sendTextMail(String to,String subject,String content) throws Exception{
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);

        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);

        mailSender.send(message);
    }
}

发送HTML :

package com.wct.send;

import javax.mail.internet.MimeMessage;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

@Component
public class SendHtmlMail {

    @Autowired
    private JavaMailSender mailSender;

    @Value("${spring.mail.username}")
    private String from;

    public void sendHtmlMail(String to,String subject,String content) throws Exception{
        MimeMessage message = mailSender.createMimeMessage();
        MimeMessageHelper send = new MimeMessageHelper(message,true);

        send.setFrom(from);
        send.setTo(to);
        send.setSubject(subject);
        send.setText(content,true);

        mailSender.send(message);
    }

}

测试类：

package com.wct.controllers;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import com.wct.send.SendHtmlMail;
import com.wct.send.SendTextMail;

@RestController
public class SendController {

    @Autowired
    private SendTextMail sendTextMail;

    @Autowired
    private SendHtmlMail sendHtmlMail;

    private static String TO = "15217742393@163.com";
    private static String SUBJECT = "主题文件";
    private static String CONTENT = "this is a mail !";
    private static String Html = "<a href=\"www.baidu.com\">超链接!</a>";

    @GetMapping("/sendText")
    public String send01() throws Exception{
        sendTextMail.sendTextMail(TO,SUBJECT,CONTENT);
        return "success";
    }

    @GetMapping("/sendHtml")
    public String send02() throws Exception{
        sendHtmlMail.sendHtmlMail(TO,SUBJECT,Html);
        return "success";
    }

}