springboot 整合邮件服务

• 1. 新建 maven 项目，引入依赖
• 2. 新建接口文件
• 3. 新建实现类
• 4. 在配置文件中配置用户名、密码信息
• 5. 测试类
• 附

1. 新建 maven 项目，引入依赖

<dependency><groupId>org.springframework.bootgroupId><artifactId>spring-boot-starter-mailartifactId>
dependency>

2. 新建接口文件

package com.example.demo.service;import javax.mail.MessagingException;
import java.io.UnsupportedEncodingException;
import java.nio.file.Path;public interface MailService {/*** 1. from 发件人* 2. to 收件人* 3. subject 邮件主题* 4. cc 抄送* 5. bcc 密送*/void sendMail(String to, String subject, String content, Path path) throws MessagingException, UnsupportedEncodingException;}

3. 新建实现类

package com.example.demo.service;import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Properties;@Slf4j
@Service
public class MailServiceImpl implements MailService {@Value("${mail.from.mail.addr}")private String from;@Value("${mail.from.mail.pass1}")private String password1;@Value("${mail.from.mail.pass2}")private String password2;@Overridepublic void sendMail(String to, String subject, String content, Path path) throws MessagingException, UnsupportedEncodingException {log.info("send start");log.info("username >>> " + from);log.info("p1 >>> " + password1);log.info("p2 >>> " + password2);Properties properties = new Properties();properties.setProperty("mail.smtp.host", "smtp.163.com");properties.setProperty("mail.smtp.username", from);properties.setProperty("mail.smtp.password", password1);properties.setProperty("mail.smtp.defaultEncoding", "UTF-8");properties.setProperty("mail.smtp.auth", "true");
//		安全类型：ssl 端口号：465properties.setProperty("mail.smtp.port", "465");properties.put("mail.smtp.ssl.enable", "true");Session session = Session.getDefaultInstance(properties, new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(from, password2);}});//得到一个邮件MimeMessage message = new MimeMessage(session);// 设置发件人 frommessage.setFrom(new InternetAddress(from));//设置收件人 tomessage.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));//设置主题 subjectmessage.setSubject(subject);//设置包含 html 内容的 mimebodypartMultipart multipart = new MimeMultipart();BodyPart html = new MimeBodyPart();html.setContent(content, "text/html; charset=utf-8");multipart.addBodyPart(html);//设置附件。。。if (path != null) {File file = path.toFile();String fileName = file.getName();log.info("fileName >>> " + fileName);BodyPart bodyPart = new MimeBodyPart();DataSource source = new FileDataSource(file);bodyPart.setDataHandler(new DataHandler(source));//避免 filename 乱码bodyPart.setFileName(MimeUtility.encodeWord(fileName));multipart.addBodyPart(bodyPart);}//设置邮件内容message.setContent(multipart);Transport.send(message);log.info("send end");}
}

4. 在配置文件中配置用户名、密码信息

application.properties

mail.from.mail.addr=xxx
mail.from.mail.pass1=xxx
# 客户端的授权码
mail.from.mail.pass2=xxx 

5. 测试类

package com.example.demo;import com.example.demo.service.MailServiceImpl;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.test.context.junit4.SpringRunner;import javax.mail.MessagingException;
import java.io.UnsupportedEncodingException;
import java.nio.file.Paths;@SpringBootTest
@RunWith(SpringRunner.class)
public class TestMail {@AutowiredMailServiceImpl mailService;@Testpublic void test() {try {mailService.sendMail("XXX@163.com","test-mail","
TEST
",Paths.get("/Users/zhangzheng/Desktop/test-mail.rtf"));} catch (MessagingException e) {e.printStackTrace();} catch (UnsupportedEncodingException e) {e.printStackTrace();}}
}

附

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