springboot简易使用邮件功能

蔚落 2022-05-13 16:40 134阅读 0赞

写在前面：本文中使用126邮箱进行测试

代码地址: [https://github.com/Blankwhiter/email][https_github.com_Blankwhiter_email]

# 一、注册邮箱以及开启POP3/SMTP/IMAP #

读者请自行注册，以及自行开启POP3/SMTP/IMAP。  
在开启POP3/SMTP/IMAP过程中，会要求输入一个授权码，请记住，接下来将使用该授权密码进行邮件发送。

# 二、编写springboot配置文件以及代码 #

1.引入email环境。  
**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.email</groupId>
        <artifactId>demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>email-springboot</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-test</artifactId>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-mail</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.编写配置文件  
**application.yml**

spring:
      mail:
        username: XXXX@126.com
        password: XXXXX (第一步的授权密码)
        host: smtp.126.com
    
    #    qq邮箱需要多设置如下
    #    properties:
    #              mail:
    #                smtp:
    #                  ssl:
    #                    enable: true

3.测试代码

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.mail.javamail.MimeMessageHelper;
    import org.springframework.test.context.junit4.SpringRunner;
    
    import javax.mail.internet.MimeMessage;
    import java.io.File;
    
    
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class EmailSpringbootApplicationTests { 
    
    
        @Autowired
        JavaMailSenderImpl javaMailSender;
    
        /** * 发送简单邮件 */
        @Test
        public void testSimpleMail() { 
            SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
            simpleMailMessage.setSubject("这个是标题");
            simpleMailMessage.setText("这个是测试内容");
            simpleMailMessage.setFrom("XXXX@126.com");
            simpleMailMessage.setTo("XXX@qq.com");
            javaMailSender.send(simpleMailMessage);
        }
    
        /** * 发送复杂邮件 */
        @Test
        public void testMimeMail() throws Exception{ 
            MimeMessage mimeMessage = javaMailSender.createMimeMessage();
            //第二个参数 邮件是否要附件
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage,true);
            mimeMessageHelper.setSubject("it is also title ");
            //第二个参数 内容是否按html解析
            mimeMessageHelper.setText(" <b> it is a content </a>",true);
            mimeMessageHelper.setFrom("XXX@126.com");
            mimeMessageHelper.setTo("XXXX@qq.com");
            mimeMessageHelper.addAttachment("banner.png",new File("C:\\Users\\monkey\\Pictures\\banner.png"));
    
            javaMailSender.send(mimeMessage);
        }
    
    }

[https_github.com_Blankwhiter_email]: https://github.com/Blankwhiter/email