邮件发送关键点
- 使用spring boot 项目,我们可以节约很多的工作,spring boot将一些基础的配置都帮我们约束好了,我们只需要按照标准去配置即可。
 
- 项目主配置文件配置(application.yml ),这里我将演示三种不同类型的邮箱账号发送邮件:
 
 
 spring:
   mail:
     host: smtp.exmail.qq.com  
     username: tangz***g@wei***ada.net  
     password: ETQpK***gxYGd  
     properties:
           mail:
             smtp:
               auth: true 
               starttls: 
                 enable: true
                 required: true
     port: 465  
     protocol: smtps 
 
 mail:
   fromMail:
     addr: tang***ng@w***.net  
   receptionMail:
     addr: 332***4141@qq.com  
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- QQ 普通邮箱
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spring:
  mail:
    host: smtp.qq.com
    username: 191***933@qq.com 
    password: twuhvbfgndkwbgbf 
    properties:
          mail:
            smtp:
              auth: true
              starttls:
                enable: true
                required: true
mail:
  fromMail:
    addr: 191****33@qq.com
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- 网易 163 邮箱
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spring:
  mail:
    host: smtp.163.com
    username: 1****61@163.com 
    password: ****.  
mail:
  fromMail:
    addr: 1****61@163.com
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QQ企业邮箱客户端专用码申请(关于申请 QQ企业邮箱不做多的介绍)
- 第一步:登录企业邮箱后点击 
设置 并找到 客户端设置确定开启了 POP/SMTP服务。 
 
 
 
 
 
 
 
 
QQ普通邮箱开启授权码
- 第一步:点击 
设置 > 账户 ,向下拉,找到 POOP/SMTP服务并开启。 
 
 
 
 
- 第二步:点击 
生成授权码,按照官方的提示完成验证即可生成 授权码。 
 
 
项目pom.xml文件准备
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        
        
        <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>
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mail 服务接口定义
public interface MailService {
    
    public void sendTextMail(String toAddr, String title, String content);
    
    public void sendHtmlMail(String toAddr, String title, String content);
    
    public void sendAttachmentsMail(String toAddr, String title, String content, String filePath);
    
    public void sendInlineResourceMail(String toAddr, String title, String content, String rscPath, String rscId);
}
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服务接口的实现
@Component
public class MailServiceImpl implements MailService {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Autowired
    private JavaMailSender mailSender;
    
    @Value("${mail.fromMail.addr}")
    private String from;
    
    @Override
    public void sendTextMail(String toAddr, String title, String content) {
        
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(toAddr);
        message.setSubject(title);
        message.setText(content);
        try {
            mailSender.send(message);
            logger.info("Text邮件已经发送。");
        } catch (Exception e) {
            logger.error("发送Text邮件时发生异常!", e);
        }
    }
    
    @Override
    public void sendHtmlMail(String toAddr, String title, String content) {
        
        MimeMessage message = mailSender.createMimeMessage();
        try {
            
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(toAddr);
            helper.setSubject(title);
            helper.setText(content, true);
            mailSender.send(message);
            logger.info("html邮件发送成功");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常!", e);
        }
    }
    
    public void sendAttachmentsMail(String toAddr, String title, String content, String filePath){
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(toAddr);
            helper.setSubject(title);
            helper.setText(content, true);
            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);
            
            mailSender.send(message);
            logger.info("带附件的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送带附件的邮件时发生异常!", e);
        }
    }
    
    public void sendInlineResourceMail(String toAddr, String title, String content, String rscPath, String rscId){
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(toAddr);
            helper.setSubject(title);
            helper.setText(content, true);
            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);
            mailSender.send(message);
            logger.info("嵌入静态资源的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送嵌入静态资源的邮件时发生异常!", e);
        }
    }
}
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测试类
@RunWith(SpringRunner.class)
@SpringBootTest
public class BasemailApplicationTests {
	@Value("${mail.receptionMail.addr}")
	private String receptionMailAddr;
	@Autowired
	private MailService mailService;
	@Autowired
	private TemplateEngine templateEngine;
	
	@Test
	public void testSimpleMail() throws Exception {
		mailService.sendTextMail(receptionMailAddr,"测试文本邮箱发送","你好你好!");
	}
	
	@Test
	public void testHtmlMail() throws Exception {
		String content="<html>\n" +
				"<body>\n" +
				"    <h3>hello world ! 这是一封html邮件!</h3>\n" +
				"</body>\n" +
				"</html>";
		mailService.sendHtmlMail(receptionMailAddr,"test simple mail",content);
	}
	@Test
	public void sendAttachmentsMail() {
		String filePath="C:\\\\Users\\\\Administrator\\\\Desktop\\\\java并发学习.txt";
		mailService.sendAttachmentsMail(receptionMailAddr, "主题:带附件的邮件", "有附件,请查收!", filePath);
	}
	@Test
	public void sendInlineResourceMail() {
		String rscId = "neo006";
		String content="<html><body>这是有图片的邮件:<img src=\‘cid:" + rscId + "\‘ ></body></html>";
		String imgPath = "C:\\\\Users\\\\Administrator\\\\Desktop\\\\testMail.png";
		mailService.sendInlineResourceMail(receptionMailAddr, "主题:这是有图片的邮件", content, imgPath, rscId);
	}
	@Test
	public void sendTemplateMail() {
		
		Context context = new Context();
		context.setVariable("id", "006");
		
		String emailContent = templateEngine.process("emailTemplate", context);
		mailService.sendHtmlMail(receptionMailAddr,"主题:这是模板邮件",emailContent);
	}
}