Question

我正在尝试使用Thymeleaf + Spring 4发送一个富文本邮件。我已经在Thymeleaf的网站上关注了这个例子，但由于某种原因它会抛出异常。

这是我的配置：

@Bean
public ServletContextTemplateResolver templateResolver() {
    ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".html");
    resolver.setCharacterEncoding("UTF-8");
    resolver.setTemplateMode("HTML5");
    resolver.setOrder(2);
    return resolver;
}

@Bean
public ClassLoaderTemplateResolver emailTemplateResolver() {
    ClassLoaderTemplateResolver resolver = new ClassLoaderTemplateResolver();
    resolver.setPrefix("/WEB-INF/views/mail/");
    resolver.setSuffix(".html");
    resolver.setTemplateMode("HTML5");
    resolver.setCharacterEncoding("UTF8");
    resolver.setOrder(1);
    return resolver;
}

@Bean
public SpringTemplateEngine templateEngine() {
    final SpringTemplateEngine engine = new SpringTemplateEngine();
    final Set<TemplateResolver> templateResolvers = new HashSet<TemplateResolver>();
    templateResolvers.add(templateResolver());
    templateResolvers.add(emailTemplateResolver());
    engine.setTemplateResolvers(templateResolvers);
    return engine;
}

从上面的配置中可以看出，我有两个解析器;一个用于页面，一个用于电子邮件模板。基于我在网上完成的研究，当我尝试使用我拥有的模板启动电子邮件时，它尝试使用templateResolver（）而不是emailTemplateResolver（），尽管订单设置正确。

这是我的电子邮件服务：

Autowired
private JavaMailSender mailSender;

@Autowired
private TemplateEngine templateEngine;

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

/*
 * Send HTML mail (simple)
 */
public void sendSimpleMail(final Locale locale)
        throws MessagingException {

    final String recipientName = "Name";
    final String recipientEmail = "Email";

    // Prepare the evaluation context
    final Context ctx = new Context(locale);
    ctx.setVariable("name", recipientName);

    // Prepare message using a Spring helper
    final MimeMessage mimeMessage = this.mailSender.createMimeMessage();
    final MimeMessageHelper message = new MimeMessageHelper(mimeMessage, "UTF-8");
    message.setSubject("Example HTML email (simple)");
    message.setFrom("thymeleaf@example.com");
    message.setTo(recipientEmail);

    // Create the HTML body using Thymeleaf
    final String htmlContent = this.templateEngine.process("email-simple", ctx);
    message.setText(htmlContent, true /* isHtml */);

    // Send email
    this.mailSender.send(mimeMessage);

}

以下是抛出的异常：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateProcessingException: Resource resolution by ServletContext with org.thymeleaf.resourceresolver.ServletContextResourceResolver can only be performed when context implements org.thymeleaf.context.IWebContext [current context: org.thymeleaf.context.Context]

有没有人有任何想法如何解决这个问题？

提前致谢

Answer 1

嘿，我在一些研究之前和之后遇到过这个问题，我找到了解决方法。将您的Java配置更改为此类，您还必须将您的html内容移动到/ WEB-INF / classes / mail / ，因为ClassLoaderTemplateResolver在classes目录中查找您的文件。

@Bean
public TemplateResolver templateResolver() {
    TemplateResolver resolver = new ServletContextTemplateResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".html");
    resolver.setCharacterEncoding("UTF-8");
    resolver.setTemplateMode("HTML5");
    resolver.setOrder(2);
    return resolver;
}

@Bean
public TemplateResolver emailTemplateResolver() {
    TemplateResolver resolver = new ClassLoaderTemplateResolver();
    resolver.setPrefix("mail/");
    resolver.setSuffix(".html");
    resolver.setTemplateMode("HTML5");
    resolver.setCharacterEncoding("UTF-8");
    resolver.setOrder(1);
    return resolver;
}

@Bean
public SpringTemplateEngine templateEngine() {
    final SpringTemplateEngine engine = new SpringTemplateEngine();
    final Set<TemplateResolver> templateResolvers = new HashSet<TemplateResolver>();
    templateResolvers.add(emailTemplateResolver());
    templateResolvers.add(templateResolver());
    engine.setTemplateResolvers(templateResolvers);
    return engine;
}

希望这有帮助！

Answer 2

以下代码将有助于实现

      WebContext wc=new WebContext(request,response,servletContext,request.getLocale());//servletContext Spring Context
       MimeMessage message = this.mailSender.createMimeMessage();
       MimeMessageHelper helper = new MimeMessageHelper(message, true);
       wc.setVariable("name", "abc");// If you want to pass params to Template
       final String htmlContent = this.templateEngine.process("TemplateName", wc);

无法发送富文本电子邮件 - Thymeleaf + Spring 4

2 个答案: