前言

Spring提供了JavaMailSender接口实现邮件发送。在Spring Boot的Starter模块中也为此提供了自动化配置，使用起来及其方便

看完本章你将会知道

如何简单地使用springboot发送一份邮件

配置文件

pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.boot</groupId>
    <artifactId>demo-email</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo-email</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

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

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

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

application.yml

spring:
  mail:
    host: smtp.qq.com
    username: 123@qq.com
    password: 123

HelloMail

@Slf4j
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoEmailApplicationTests{

    @Autowired
    private JavaMailSender mailSender;

    @Test
    public void sendSimpleMail() throws Exception {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom("123@qq.com");
        message.setTo("345@qq.com");
        message.setSubject("主题：百度");
        message.setText("helloEmail");

        mailSender.send(message);
    }

    @Test
    public void sendInlineMail() throws Exception {

        MimeMessage mimeMessage = mailSender.createMimeMessage();

        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
        helper.setFrom("123@qq.com");
        helper.setTo("345@qq.com");
        helper.setSubject("主题：html");
        helper.setText("<h3><a href='http://www.baidu.com'>百度一下，你就知道</a></h3>", true);


        mailSender.send(mimeMessage);

    }
}

image.png