Spring发送电子邮件
简介
Spring基于javax.mail封装了一套用于发送电子邮件的API，位于org.springframework.mail包下，下面将介绍下发送普通文本邮件和基于thymeleaf模版的邮件。
普通邮件
导入javax.mail依赖
<!-- ...... -->
<!-- 省略Spring依赖 -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.2</version>
</dependency>
Spring配置类
@PropertySource(value="classpath:mail.properties")
@Configuration
public class SpringConfig {
@Autowired
Environment environment;
/**
* Spring邮件配置
*/
@Bean
public JavaMailSenderImpl javaMailSenderImpl(){
JavaMailSenderImpl javaMailSenderImpl = new JavaMailSenderImpl();
javaMailSenderImpl.setHost(environment.getProperty("mail.host"));
javaMailSenderImpl.setUsername(environment.getProperty("mail.username"));
javaMailSenderImpl.setPassword(environment.getProperty("mail.password"));
javaMailSenderImpl.setDefaultEncoding(environment.getProperty("mail.encoding"));
return javaMailSenderImpl;
}
}
邮件配置：mail.properties
#QQ邮箱发送邮件服务器
mail.host=smtp.qq.com
#QQ邮箱账户名
mail.username=xxxxxx@qq.com
#QQ邮箱授权码，开启IMAP/SMTP服务时会生成
mail.password=lrorsapyffcwbegg
#邮件发送编码
mail.encoding=UTF-8
测试
@RunWith(SpringRunner.class)
@ContextConfiguration(classes=SpringConfig.class)
public class MailTest {
@Autowired
private JavaMailSenderImpl javaMailSenderImpl;
@Test
public void testSimpleMail() throws MessagingException{
MimeMessage message = javaMailSenderImpl.createMimeMessage();
//发送带附件和内联元素的邮件需要将第二个参数设置为true
MimeMessageHelper helper = new MimeMessageHelper(message, true);
//发送方邮箱，和配置文件中的mail.username要一致
helper.setFrom("xxxxxx@qq.com");
//接收方
helper.setTo("xxxxxx@qq.com");
//主题
helper.setSubject("邮件测试");
//邮件内容
helper.setText("<html><body><img src='cid:myphoto'></body></html>", true);
//邮件内容内嵌的图片,addInline中的contentId要和邮件内容中的cid相对应
FileSystemResource res = new FileSystemResource(new File("e:/yc/1.jpg"));
helper.addInline("myphoto", res);
//邮件附件
FileSystemResource file = new FileSystemResource(new File("e:/yc/myphoto.zip"));
helper.addAttachment("myphoto.zip", file);
javaMailSenderImpl.send(message);
}
}
基于thymeleaf模版的邮件
导入thymeleaf-spring依赖
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
Spring配置类中添加thymeleaf模板配置
@Bean
public TemplateEngine emailTemplateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();
templateResolver.setResolvablePatterns(Collections.singleton("*.html"));
templateResolver.setPrefix("/templates/");
templateResolver.setSuffix(".html");
templateResolver.setTemplateMode(TemplateMode.HTML);
templateResolver.setCharacterEncoding("UTF-8");
templateResolver.setCacheable(false);
templateEngine.addTemplateResolver(templateResolver);
return templateEngine;
}
模版文件：/src/main/resources/templates/msg.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style type="text/css">span{color:orange}</style>
</head>
<body>
<p>
您好， <span th:text="${name}">xxx</span>，感谢您使用XXX服务，您正在进行邮箱验证，本次请求的验证码为：
</p>
<p><span th:text="${validCode}">1111</span>(为了保障您帐号的安全性，请在1小时内完成验证。)</p>
<p>
XXX团队<br />
2019年06月06日
</p>
</body>
</html>
测试
@Autowired
private TemplateEngine emailTemplateEngine;
@Test
public void testTemplateMail() throws MessagingException{
MimeMessage message = javaMailSenderImpl.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom("xxxxxx@qq.com");
helper.setTo("xxxxxx@qq.com");
helper.setSubject("邮件测试");
//thymeleaf模版解析成String
Context ctx = new Context();
ctx.setVariable("name", "小姐姐");
ctx.setVariable("validCode", "88888888");
String htmlContent = emailTemplateEngine.process("msg.html", ctx);
helper.setText(htmlContent, true);
javaMailSenderImpl.send(message);
}
