SpringBoot任务之详解邮件任务
01: 异步任务
02: 定时任务
一、SpringBoot--任务:邮件任务
1.1 添加依赖(增加邮件支持)

pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
1.2 获取第三方授权码
1.2.1 登录QQ邮箱

1.2.2 点击设置

1.2.3 切换到账户

1.2.4 开启服务

1.2.5 验证密保

1.2.6 成功获取授权码
这是为了不直接暴露QQ密码设置的机制
ljoghujwhbkpbaff

1.2.7 保存更改(左下角)

1.3 配置邮件信息

application.properties
# qq邮箱 spring.mail.username=1585526224@qq.com # 刚刚生成的授权码 spring.mail.password=ljoghujwhbkpbaff # qq邮箱的host spring.mail.host=smtp.qq.com #开启加密验证(qq邮箱) spring.mail.properties.mail.smtp.ssl.enable=true
1.4 简单邮件发送
直接调用SpringBoot的JavaMailSenderImpl类,使用SimpleMailMessage发送简单邮件

EmaildemoApplicationTests.java
package com.tian.emaildemo;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
@SpringBootTest
class EmaildemoApplicationTests {
@Autowired
JavaMailSenderImpl mailSender;
@Test
void contextLoads() {
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
// 邮件主题
simpleMailMessage.setSubject("你好");
// 邮件文本
simpleMailMessage.setText("Hello world");
// 接收方
simpleMailMessage.setTo("1585526224@qq.com");
// 发送方
simpleMailMessage.setFrom("1585526224@qq.com");
// 发送邮件
mailSender.send(simpleMailMessage);
}
}
运行结果:

1.5 复杂邮件发送
调用mailSender.createMimeMessage()并使用MimeMessageHelper配置邮件内容,发送即可,邮件内容后设置为true可以解析html格式的内容

EmaildemoApplicationTests.java
@Test
void contextLoads() throws MessagingException {
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
//复杂邮件
MimeMessage mimeMessage = mailSender.createMimeMessage();
//组装
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
mimeMessageHelper.setSubject("复杂邮件");
// 发送文本: html文本
mimeMessageHelper.setText("<p style='color: orange;'>\n" +
" 海客谈瀛洲,烟涛微茫信难求;<br>\n" +
"\n" +
" 越人语天姥,云霞明灭或可睹。<br>\n" +
"\n" +
" 天姥连天向天横,势拔五岳掩赤城。<br>\n" +
"\n" +
" 天台四万八千丈,对此欲倒东南倾。<br>\n" +
"\n" +
" (四万 一作:一万)我欲因之梦吴越,一夜飞度镜湖月。<br>\n" +
"\n" +
" (度 通:渡)湖月照我影,送我至剡溪。<br>\n" +
"\n" +
" 谢公宿处今尚在,渌水荡漾清猿啼。<br>\n" +
" <br>\n" +
" 脚著谢公屐,身登青云梯。<br>\n" +
"\n" +
" 半壁见海日,空中闻天鸡。<br>\n" +
"\n" +
" 千岩万转路不定,迷花倚石忽已暝。<br>\n" +
"\n" +
" 熊咆龙吟殷岩泉,栗深林兮惊层巅。<br>\n" +
"\n" +
" 云青青兮欲雨,水澹澹兮生烟。<br>\n" +
"\n" +
" 列缺霹雳,丘峦崩摧。<br>\n" +
" <br>\n" +
" 洞天石扉,訇然中开。<br>\n" +
"\n" +
" 青冥浩荡不见底,日月照耀金银台。<br>\n" +
"\n" +
" 霓为衣兮风为马,云之君兮纷纷而来下。<br>\n" +
"\n" +
" 虎鼓瑟兮鸾回车,仙之人兮列如麻。<br>\n" +
"\n" +
" 忽魂悸以魄动,恍惊起而长嗟。<br>\n" +
" <br>\n" +
" 惟觉时之枕席,失向来之烟霞。<br>\n" +
"\n" +
" 世间行乐亦如此,古来万事东流水。<br>\n" +
"\n" +
" 别君去兮何时还?<br>\n" +
"\n" +
" 且放白鹿青崖间。<br>\n" +
"\n" +
" 须行即骑访名山。<br>\n" +
"\n" +
" 安能摧眉折腰事权贵,使我不得开心颜!<br>\n" +
" </p>", true);//true,开启html解析
// 发送图片
mimeMessageHelper.addAttachment("重庆理工大学夜景.jpg", new File("D:\\图片\\schoolNight.jpg"));
mimeMessageHelper.setTo("1585526224@qq.com");
mimeMessageHelper.setFrom("1585526224@qq.com");
mailSender.send(mimeMessage);
}
运行结果:

我不知道为什么:我写的CSS样式在电脑上面不可预见,但是在我的手机QQ邮箱确是可以看见的。欢迎知道的大神告诉我

1.6 可以把上面复杂发送邮件封装成一个方法
public void SendMail(Boolean html, String title, String text, File file, String sendTo, String sendFrom) throws MessagingException {
//复杂邮件
MimeMessage mimeMessage = mailSender.createMimeMessage();
//组装
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
mimeMessageHelper.setSubject(title);
mimeMessageHelper.setText(text, html);//true,开启html解析
mimeMessageHelper.addAttachment("1.jpg", file);
mimeMessageHelper.setTo(sendTo);
mimeMessageHelper.setFrom(sendFrom);
mailSender.send(mimeMessage);
}
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