spring boot 实现发送邮件

1、导入pom依赖

<dependency>
    <groupId>com.sun.mail</groupId>
    <artifactId>javax.mail</artifactId>
    <version>1.6.0</version>
</dependency>
2、邮箱到邮箱的配置文件

 3、发送邮箱接口api

/**
 * 通知服务
 */
public interface NotifyService {

    boolean sendEmail(String to, String title, String body);

    boolean sendpdfEmail(String[] to, String title, String body, InputStream inputStream);
}

4、实现

package com.fyun.common.utils.impl;
import com.fyun.common.utils.NotifyService;
import com.fyun.common.utils.model.EmailModel;
import com.fyun.common.utils.util.ObjectUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.activation.DataSource;
import javax.mail.internet.MimeMessage;
import javax.mail.util.ByteArrayDataSource;
import java.io.InputStream;
import java.util.Properties;

@Service
public class DefaultNotifyService implements NotifyService {

    private static final Logger logger = LoggerFactory.getLogger(ObjectUtils.class);

    private EmailModel emailAccount;

    public DefaultNotifyService() {
    }

    public DefaultNotifyService(EmailModel emailAccount) {
        this.emailAccount = emailAccount;
    }

    @Override
    public boolean sendEmail(String to, String title, String body) {
        try {
            JavaMailSender javaMailSender = buildMailSender();
            MimeMessage message = javaMailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");
            helper.setFrom(emailAccount.getFrom());
            if (null == to) {
                logger.error("接收者邮箱错误！");
                return false;
            }
            helper.setTo(to);
            helper.setSubject(title);
            helper.setText(body, true);
            javaMailSender.send(message);
            logger.info("邮件发送成功...");
            return true;
        } catch (Exception e) {
            logger.error(String.format("邮件发送 失败 e:{%s}", e));
            return false;
        }
    }
    public boolean sendpdfEmail(String[] to, String title, String body, InputStream is) {
        try {
            System.getProperties().setProperty("mail.mime.splitlongparameters", "false");  //发送至网易邮箱文件名过长会导致附件变成bin文件
            logger.info("邮件发送至:" + to );
            for (int i =0;i<to.length;i++)
            {
                System.out.println("发送给："+to[i]);
            }
            JavaMailSender javaMailSender = buildMailSender();
            MimeMessage message = javaMailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");
            helper.setFrom(emailAccount.getFrom());
            if (null == to) {
                logger.error("接收者邮箱错误！");
                return false;
            }
            helper.setTo(to);
//            helper.setCc(emailAccount.getCcs());                        //抄送人
            helper.setSubject(title);                                   //标题
            helper.setText(body, true);                           //内容
            if (is != null){
                DataSource source = new ByteArrayDataSource(is, "application/msexcel");
                helper.addAttachment(title+".pdf",source);  //发送附件
            }
            javaMailSender.send(message);
            logger.info("邮件发送成功...");
            return true;
        } catch (Exception e) {
            logger.error(String.format("邮件发送传失败 e:{%s}", e));
            return false;
        }
    }
    private JavaMailSender buildMailSender() {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost(emailAccount.getHost());
        mailSender.setPort(emailAccount.getPort());
        mailSender.setUsername(emailAccount.getFrom());
        mailSender.setPassword(emailAccount.getPassword());
        //加认证机制
        Properties javaMailProperties = new Properties();
        javaMailProperties.put("mail.smtp.auth", "true");
        javaMailProperties.put("mail.smtp.ssl.enable", emailAccount.getEnableSSL());
        mailSender.setJavaMailProperties(javaMailProperties);
        logger.info("发送邮件配置信息:{}", mailSender.getHost() + "," + mailSender.getPort() + "," + mailSender.getUsername() + "," + mailSender.getPassword());
        return mailSender;
    }
}

6、emailconfig 主要初始化邮箱ip port 等的properties配置文件

package com.fyun.tewebcore.config;

import com.fyun.common.utils.NotifyService;
import com.fyun.common.utils.impl.DefaultNotifyService;
import com.fyun.common.utils.model.EmailModel;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
@Configuration
@PropertySource(value = "classpath:config/email-${spring.profiles.active:dev}.properties")
public class EmailConfig {
    @Value("${email.host}")
    private String host;

    @Value("${email.port}")
    private Integer port;

    @Value("${email.enableSSL}")
    private Boolean enableSSL;

    @Value("${email.from}")
    private String from;

    @Value("${email.password}")
    private String password;
    @Bean
    public NotifyService notifyService() {
        EmailModel account = new EmailModel();
        account.setHost(host);
        account.setPort(port);
        account.setEnableSSL(enableSSL);
        account.setFrom(from);
        account.setPassword(password);
        return new DefaultNotifyService(account);
    }
}