08.`spring boot`邮件服务

2020-09-11 本文已影响0人风安峻_

1. 登录邮箱获取授权

开启POP3/SMTP服务
开启服务
获取授权码，要记好，要用到
授权密码

2. 依赖

依赖

<!-- 邮箱服务 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

说明

spring boot已经集成，无需声明版本

本项目用到了RocketMq

<properties>
    <spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version>
</properties>

<!-- spring-cloud-rocketmq -->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
</dependency>

<dependencyManagement>
    <dependencies>
        <!-- spring-cloud-alibaba-dependencies -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>${spring-cloud-alibaba.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

3. 配置文件

email-provider

主配置文件application.yml

server:
  port: 8081

spring:
  application:
    name: email-provider
  cloud:
    stream:
      rocketmq:
        binder:
          name-server: 120.25.207.44:9876
      bindings:
        emailOutput: {destination: email-topic, content-type: application/json}

启动类

import com.sheng.cloud.consumer.binding.EmailSource;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.stream.annotation.EnableBinding;

@EnableBinding({EmailSource.class})
@SpringBootApplication
public class EmailProviderApplication {

    public static void main(String[] args) {
        SpringApplication.run(EmailProviderApplication.class, args);
    }

}

将自定义bingding注册到容器

email-consumer

主配置文件

server:
  port: 8082

spring:
  application:
    name: email-consumer
  cloud:
    stream:
      rocketmq:
        binder:
          # 配置 rocketMq 的 nameserver 服务器地址
          name-server: 120.25.207.44:9876
      bindings:
        # 自定义，要与提供者的 binding 一致
        emailInput: {destination: email-topic, content-type: application/json, group: email-group}
  # 邮件服务的配置        
  mail:
    # 这是 163 邮箱的 SMTP 服务器：smtp.163.com
    host: smtp.163.com
    # 邮箱，如 xx@163.com
    username: <邮箱>
    # 邮箱的授权码
    password: <开启POP3/SMTP服务时的授权码>
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enable: true
            required: true
  # redis 的配置            
  redis:
    # redis 的地址
    host: 127.0.0.1
    # redis 的端口
    port: 6379
    # 密码
    password: password
    # 第几个数据库
    database: 1
    # 连接池
    lettuce:
      pool:
        min-idle: 5
        max-active: 10

虽然是导入redis外部服务，但是还是要配置reids，否则依然是redis的默认配置
spring.mail.username为邮箱
spring.mail.password为开启POP3/SMTP服务时的授权码，不是邮箱密码

启动类

import com.sheng.cloud.consumer.binding.EmailSink;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.stream.annotation.EnableBinding;

@EnableBinding({EmailSink.class})
@SpringBootApplication(scanBasePackages = {"com.sheng.redis.provider", "com.sheng.cloud.consumer"})
public class EmailConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(EmailConsumerApplication.class, args);
    }

}

将自定义binding注册到容器
@SpringBootApplication注解要使用scanBasePackages = {}把要扫描的主包注册，在本项目因为redis单独成为一个服务，将其安装到了本地仓库，所以必须要使用scanBasePackages属性，否则会报类找不到的错误，服务启动失败

4. 邮件服务

发送普通文本

EmailServiceImpl实现类

import com.sheng.cloud.consumer.common.StatusCodeEnum;
import com.sheng.cloud.consumer.constant.EmailConstant;
import com.sheng.cloud.consumer.domian.dto.EmailDto;
import com.sheng.cloud.consumer.exception.ServiceException;
import com.sheng.cloud.consumer.service.EmailService;
import com.sheng.cloud.consumer.utils.RandomNumberUtils;
import com.sheng.cloud.consumer.utils.RedisUtils;
import com.sheng.redis.provider.service.RedisService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.Date;
import java.util.concurrent.TimeUnit;

/**
 * 说明：
 *
 * @author sheng
 */
@Service
public class EmailServiceImpl implements EmailService {
    @Resource
    private RedisService redisService;
    @Resource
    private JavaMailSender javaMailSender;
    @Value("${spring.mail.username}")
    private String username;

    @Override
    @StreamListener("emailInput")
    public void sendEmail(EmailDto emailDto) throws Exception {
        // 验证码
        String token = RandomNumberUtils.sixFigures();
        // 目标邮箱
        String email = emailDto.getEmail();
        // 隐私原因，截取
        String[] emailSplit = email.split("@");
        // 判断是否是正确的邮箱
        int length = 2;
        if (emailSplit.length > length) {
            throw new ServiceException(StatusCodeEnum.PARAMS_IS_INVALID);
        }
        // 邮箱的前几位
        String emailSon = emailSplit[0];
        // 隐私邮箱
        String privacyEmail = emailSon.substring(0, 2)
                + "**"
                + emailSon.substring(emailSon.length() - 1)
                + "@" + emailSplit[1];
        // 封装发送的信息
        SimpleMailMessage message = new SimpleMailMessage();
        // 标题
        message.setSubject(EmailConstant.EMAIL_SUBJECT);
        // 发送人
        message.setFrom(username);
        // 目标邮箱
        message.setTo(email);
        // 发送的文本
        message.setText(EmailConstant.EMAIL_TEXT_1
                + privacyEmail
                + EmailConstant.EMAIL_TEXT_2
                + token
                + EmailConstant.EMAIL_TEXT_3);
        // 发送的时间
        message.setSentDate(new Date());
        // 发送信息
        // try 发送失败不会重试
        try {
            javaMailSender.send(message);
        } catch (MailException e) {
            e.printStackTrace();
        }
        // redis 验证码过期时间
        int timeout = 15;
        // 将验证码存储到 redis
        redisService.set(RedisUtils.emailKey(email), token, timeout, TimeUnit.MINUTES);
    }
}

说明

org.springframework.mail.javamail.JavaMailSender对象的send()方法来发送消息
org.springframework.mail.SimpleMailMessage用来封装邮件内容信息
1. setFrom()方法，必须传入跟主配置文件application.yml填写的授权码的那个邮箱，否则报550错误
2. setSubject()邮件的标题
3. setText()邮件正文的内容
4. setTo()目标邮箱
5. setSentDate()邮件的时间

发送邮件的代码

// 封装发送的信息
SimpleMailMessage message = new SimpleMailMessage();
// 标题
message.setSubject(EmailConstant.EMAIL_SUBJECT);
// 发送人
message.setFrom(username);
// 目标邮箱
message.setTo(email);
// 发送的文本
message.setText(EmailConstant.EMAIL_TEXT_1
        + privacyEmail
        + EmailConstant.EMAIL_TEXT_2
        + token
        + EmailConstant.EMAIL_TEXT_3);
// 发送的时间
message.setSentDate(new Date());
// 发送信息
// try 发送失败不会重试
try {
    javaMailSender.send(message);
} catch (MailException e) {
    e.printStackTrace();
}

结果
结果

发送html

EmailServiceImpl实现类

import com.sheng.cloud.consumer.common.StatusCodeEnum;
import com.sheng.cloud.consumer.constant.EmailConstant;
import com.sheng.cloud.consumer.domian.dto.EmailDto;
import com.sheng.cloud.consumer.exception.ServiceException;
import com.sheng.cloud.consumer.service.EmailService;
import com.sheng.cloud.consumer.utils.RandomNumberUtils;
import com.sheng.cloud.consumer.utils.RedisUtils;
import com.sheng.redis.provider.service.RedisService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.mail.internet.MimeMessage;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.TimeUnit;

/**
 * 说明：
 *
 * @author sheng
 */
@Service
public class EmailServiceImpl implements EmailService {
    @Resource
    private RedisService redisService;
    @Resource
    private JavaMailSender javaMailSender;
    @Value("${spring.mail.username}")
    private String username;

    @Override
    @StreamListener("emailInput")
    public void sendEmail(EmailDto emailDto) throws Exception {
        // 验证码
        String token = RandomNumberUtils.sixFigures();
        // 目标邮箱
        String email = emailDto.getEmail();
        // 隐私原因，截取
        String[] emailSplit = email.split("@");
        // 判断是否是正确的邮箱
        int length = 2;
        if (emailSplit.length > length) {
            throw new ServiceException(StatusCodeEnum.PARAMS_IS_INVALID);
        }
        // 邮箱的前几位
        String emailSon = emailSplit[0];
        // 隐私邮箱
        String privacyEmail = emailSon.substring(0, 2)
                + "**"
                + emailSon.substring(emailSon.length() - 1)
                + "@" + emailSplit[1];
        // 封装发送的信息，发送 html 页面
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message, true, "utf-8");
        // 标题
        mimeMessageHelper.setSubject(EmailConstant.EMAIL_SUBJECT);
        // 发送人
        mimeMessageHelper.setFrom(username);
        // 目标邮箱
        mimeMessageHelper.setTo(email);
        // 发送的文本
        mimeMessageHelper.setText(EmailConstant.EMAIL_TEXT_1
                        + privacyEmail
                        + EmailConstant.EMAIL_TEXT_2
                        + token
                        + EmailConstant.EMAIL_TEXT_3
                        + EmailConstant.EMAIL_FROM
                        + new SimpleDateFormat("yyyy年MM月dd日").format(new Date())
                , true);
        // 发送的时间
        mimeMessageHelper.setSentDate(new Date());
        // 发送信息
        // try 发送失败不会重试
        javaMailSender.send(message);
        // redis 验证码过期时间
        int timeout = 15;
        // 将验证码存储到 redis
        redisService.set(RedisUtils.emailKey(email), token, timeout, TimeUnit.MINUTES);
    }
}

说明

org.springframework.mail.javamail.MimeMessageHelper封装html邮件内容
javax.mail.internet.MimeMessage发送的信息

发送邮件的代码

// 封装发送的信息，发送 html 页面
MimeMessage message = javaMailSender.createMimeMessage();
// 封装 html 邮件内容
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message, true, "utf-8");
// 标题
mimeMessageHelper.setSubject(EmailConstant.EMAIL_SUBJECT);
// 发送人
mimeMessageHelper.setFrom(username);
// 目标邮箱
mimeMessageHelper.setTo(email);
// 发送的文本
mimeMessageHelper.setText(EmailConstant.EMAIL_TEXT_1
                + privacyEmail
                + EmailConstant.EMAIL_TEXT_2
                + token
                + EmailConstant.EMAIL_TEXT_3
                + EmailConstant.EMAIL_FROM
                + new SimpleDateFormat("yyyy年MM月dd日").format(new Date())
        , true);
// 发送的时间
mimeMessageHelper.setSentDate(new Date());
// 发送信息
// try 发送失败不会重试
javaMailSender.send(message);

结果
结果

08.`spring boot`邮件服务

1. 登录邮箱获取授权

2. 依赖

3. 配置文件

4. 邮件服务

5. mail-demo 源码

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