springboot 之 邮件发送

1.配置maven依赖


   com.sun.mail
   javax.mail
   1.6.0


   org.springframework.boot
   spring-boot-starter-mail

 

2.配置 application.properties
#e-mail
mail.smtp.auth=true
mail.transport.protocol=smtp
mail.send.charset=UTF-8
mail.smtp.port=465
mail.is.ssl=true
mail.host=smtp.163.com

#发送者的邮箱账户
[email protected]

#发送者的邮箱密码
mail.auth.password=*******

#发送超时设置
mail.smtp.timeout=5000

3.工具类 EmailUtils

import com.sun.mail.util.MailSSLSocketFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import javax.mail.internet.MimeMessage;
import java.io.File;
import java.security.GeneralSecurityException;
import java.util.List;
import java.util.Map;
import java.util.Properties;
/**
 * @author lk
 * @Description
 */
@Component
public class SendEmailUtils {

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

    @Autowired
    private Environment envEmail;

    private static String auth;
    private static String host;
    private static String protocol;
    private static int port;
    private static String authName;
    private static String password;
    private static boolean isSSL;
    private static String charset ;
    private static String timeout;

    @PostConstruct
    public void initParam () {
        auth = envEmail.getProperty("mail.smtp.auth");
        host = envEmail.getProperty("mail.host");
        protocol = envEmail.getProperty("mail.transport.protocol");
        port = envEmail.getProperty("mail.smtp.port", Integer.class);
        authName = envEmail.getProperty("mail.auth.name");
        password = envEmail.getProperty("mail.auth.password");
        charset = envEmail.getProperty("mail.send.charset");
        isSSL = envEmail.getProperty("mail.is.ssl", Boolean.class);
        timeout = envEmail.getProperty("mail.smtp.timeout");
    }


    /**
     * 发送邮件
     * @param subject 主题
     * @param toUsers 收件人
     * @param ccUsers 抄送
     * @param content 邮件内容
     * @param attachfiles 附件列表  List> key: name && file
     */
    public static boolean sendEmail(String subject, String[] toUsers, String[] ccUsers, String content, List> attachfiles) {
        boolean flag = true;
        try {
            JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
            javaMailSender.setHost(host);
            javaMailSender.setUsername(authName);
            javaMailSender.setPassword(password);
            javaMailSender.setDefaultEncoding(charset);
            javaMailSender.setProtocol(protocol);
            javaMailSender.setPort(port);

            Properties properties = new Properties();
            properties.setProperty("mail.smtp.auth", auth);
            properties.setProperty("mail.smtp.timeout", timeout);
            if(isSSL){
                MailSSLSocketFactory sf = null;
                try {
                    sf = new MailSSLSocketFactory();
                    sf.setTrustAllHosts(true);
                    properties.put("mail.smtp.ssl.enable", "true");
                    properties.put("mail.smtp.ssl.socketFactory", sf);
                } catch (GeneralSecurityException e) {
                    e.printStackTrace();
                }
            }
            javaMailSender.setJavaMailProperties(properties);

            MimeMessage mailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage, true);
            messageHelper.setTo(toUsers);
            if (ccUsers != null && ccUsers.length > 0) {
                messageHelper.setCc(ccUsers);
            }
            messageHelper.setFrom(authName);
            messageHelper.setSubject(subject);
            messageHelper.setText(content, true);

            if (attachfiles != null && attachfiles.size() > 0) {
                for (Map attachfile : attachfiles) {
                    String attachfileName = attachfile.get("name");
                    File file = new File(attachfile.get("file"));
                    messageHelper.addAttachment(attachfileName, file);
                }
            }
            javaMailSender.send(mailMessage);

        } catch (Exception e) {
            logger.error("发送邮件失败!", e);
            flag = false;
        }
        return flag;
    }
}

4.测试
package com.demo.springboot;

import com.fasterxml.jackson.core.JsonProcessingException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootApplicationTests {

   @Test
   public void contextLoads() {

   boolean isSend = EmailUtils.sendEmail("我是一封测试邮件", new String[]{"接收者邮箱[email protected]"}, null, "我是邮件的内容", null);

   }

}