Springboot 实现发送邮件（使用QQ邮箱）

Springboot 实现发送邮件

1. QQ邮箱服务器，授权码申请

在发送邮件之前，我们先需要申请QQ邮箱的授权码。如图所示：

设置 -> 账户 -> 生成授权码

2. 代码开发

代码目录

2.1 新建工程，导入依赖

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example.mail</groupId>
    <artifactId>demo-mail</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo-mail</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.0.RELEASE</spring-boot.version>
    </properties>

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

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                  <execution>
                      <goals>
                          <goal>repackage</goal>
                      </goals>
                  </execution>
              </executions>
            </plugin>
        </plugins>
    </build>

</project>

  

2.2 代码实现

SendMailService

package com.example.mail.demomail.service;

/**
 * @author wy
 * @version 1.0
 * @date 2020/7/2 11:06
 * @description
 **/
public interface SendMailService {
    /**
     * 发送普通文本邮件
     *
     * @param to      收件人
     * @param subject 主题
     * @param content 内容
     */
    void sendSimpleMail(String to, String subject, String content);
}

MailServiceimpl

package com.example.mail.demomail.service.impl;

import com.example.mail.demomail.service.SendMailService;
import lombok.extern.slf4j.Slf4j;
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.Service;

/**
 * @author wy
 * @version 1.0
 * @date 2020/7/2 11:06
 * @description
 **/
@Service
@Slf4j
public class MailServiceimpl implements SendMailService {

    @Autowired
    private JavaMailSender mailSender;


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

    @Override
    public void sendSimpleMail(String to, String subject, String content) {
        log.info("begin send mail");

        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);//收信人
        message.setSubject(subject);//主题
        message.setText(content);//内容
        message.setFrom(from);//发信人

        log.info("send mail success");
        mailSender.send(message);
    }
}

SenderVO

package com.example.mail.demomail.controller.vo;

import lombok.Data;

/**
 * @author wy
 * @version 1.0
 * @date 2020/7/2 11:14
 * @description
 **/
@Data
public class SenderVO {
    //收信人
   private String to;
    //主题
    private String subject;
    //内容
    private String content;
}

SendMailCntroller

package com.example.mail.demomail.controller;

import com.example.mail.demomail.controller.vo.SenderVO;
import com.example.mail.demomail.service.SendMailService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/**
 * @author wy
 * @version 1.0
 * @date 2020/7/2 11:12
 * @description
 **/
@RestController
public class SendMailCntroller {

    @Autowired
    private SendMailService sendMailService;

    @GetMapping("/")
    @ResponseBody
    public String get(){
        return "it works";
    }

    @PostMapping("/sender")
    public void sendMail(@RequestBody SenderVO vo){
        sendMailService.sendSimpleMail(vo.getTo(),vo.getSubject(),vo.getContent());
    }
}

application.yml

spring:
  mail:
    host: smtp.qq.com
    username: ****@qq.com
    password: ******
    default-encoding: UTF-8

2.3 资料参考

springboot2.0集成mail发qq邮件

 springboot2.x发送邮件

Spring Boot简单实现发送邮件功能

SpringBoot 发送邮件功能实现