SpringBoot-邮件发送入门案例

Bertha 。 2022-05-15 14:44 257阅读 0赞

1、进入qq邮箱，设置-开启IMAP/SMTP，点击开启，会提示授权码，记住此时的授权码

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70][]

2、记住这个发送邮件服务器的地址。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 1][]

以上准备工作做完之后，OK，现在开始编码............

### 一、首先肯定是导包。 ###

spring-boot-starter-mail

附上pom.xml：

<?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.springboot</groupId>
        <artifactId>scheduled-demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>scheduled-demo</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/> 
        </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-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-mail</artifactId>
                <version>1.2.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>

### 2、application.yml：配置文件 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 2][]

username:是你用来发送短信的邮箱账号；

password：就是你的授权码，并不是你的邮箱密码

host：是你用来发送邮件的服务器地址

### 3、编写测试类： ###

** 3.1 简单邮件：纯文本**

package com.springboot.scheduleddemo;
    
    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.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSenderImpl;
    import org.springframework.test.context.junit4.SpringRunner;
    
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class ScheduledDemoApplicationTests {
    
        @Autowired
        JavaMailSenderImpl javaMailSender;
    
        @Test
        public void SendMail() {
            SimpleMailMessage mailMessage=new SimpleMailMessage();
            //邮件设置
            mailMessage.setSubject("通知：大家放假一天，不要问为什么，老板问你，就说是我说的！！");
            mailMessage.setText("明天放假");
            mailMessage.setTo("1387xxxx64@163.com");
            mailMessage.setFrom("76xxxx1@qq.com");
            javaMailSender.send(mailMessage);
    
        }
    
    }

点击run运行测试类。

OK，此时邮件已经收到了。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 3][]

** 3.2 复杂邮件:带HTML或者带附件**

@Test
        public void SendMail2() throws MessagingException {
            //1、创建一个复杂的消息邮件
            MimeMessage mimeMessage=javaMailSender.createMimeMessage();
    
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
    
            //邮件设置
            mimeMessageHelper.setSubject("通知：未来七天放假");
            mimeMessageHelper.setText("<b style='color:red'>2018-10-30开始放假<b/>",true);
            mimeMessageHelper.setTo("13871xx8xx@163.com");
            mimeMessageHelper.setFrom("76xx2xxx@qq.com");
    
            //上传附件
            mimeMessageHelper.addAttachment("timg.jpg",new File("C:\\Users\\13871\\Desktop\\timg.jpg"));
            mimeMessageHelper.addAttachment("timg (1).jpg",new File("C:\\Users\\13871\\Desktop\\timg (1).jpg"));
            javaMailSender.send(mimeMessage);
        }

ps:

**mimeMessageHelper.setText("<b style='color:red'>2018-10-30开始放假<b/>",true);这个方法如果需要展示成html,需要将html属性，并设置为true，否则就会展示成文本了。**

可以查看源码：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 5][]

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