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
[email protected]
#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(\"[email protected]\");
//接收方
helper.setTo(\"[email protected]\");
//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(\"[email protected]\");
helper.setTo(\"[email protected]\");
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);
}
