Java Velocity引擎找不到资源

在我的应用程序中，用户可以接收电子邮件模板。我正在使用

velocity engine

发送电子邮件。电子邮件模板位于

WEB-INF/Email\u tempaltes/…

目录中

这是我的密码：

String body = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, templateLocation, "UTF-8", model);

其中，

templateLocation

是

String变量

，它显然是这样的：

"/email_templates/request-feedback.vm"

emailSender.sendEmail(mail.getEmail(), "info@somemail.com", "Your message was sent successfully", mail, "/classes/templates/request-sent-answer.vm");

以下是我发送邮件的方式：

private void sendEmail(final String toEmailAddresses, final String fromEmailAddress,
                           final String subject, final String attachmentPath,
                           final String attachmentName, final Mail mail, final String templateLocation) {
        Properties properties = new Properties();
        MimeMessagePreparator preparator = new MimeMessagePreparator() {
            public void prepare(MimeMessage mimeMessage) throws Exception {
                MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true, "UTF-8");
                message.setTo(toEmailAddresses);
                message.setFrom(new InternetAddress(fromEmailAddress));
                message.setSubject(subject);
                Map<String, Object> model = new HashMap<String, Object>();
                model.put("phone", mail.getPhone());
                model.put("email", mail.getEmail());
                model.put("message", mail.getMessage());
                String body = VelocityEngineUtils.mergeTemplateIntoString(
                        velocityEngine, templateLocation, "UTF-8", model);
                message.setText(body, true);
                if (!StringUtils.isBlank(attachmentPath)) {
                    FileSystemResource file = new FileSystemResource(attachmentPath);
                    message.addAttachment(attachmentName, file);
                }
            }
        };
        this.mailSender.send(preparator);
    }

我怎样才能修好它？我应该在哪里存储电子邮件模板？提前谢谢

------------编辑：------------- 我已经创建了类目录AnderWEB-INF，并在那里添加了我的模板

现在我得到了如下模板：

"/email_templates/request-feedback.vm"

emailSender.sendEmail(mail.getEmail(), "info@somemail.com", "Your message was sent successfully", mail, "/classes/templates/request-sent-answer.vm");

并得到相同的错误：

Could not prepare mail; nested exception is org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource 

---

我不知道mergeTemplateIntoString做什么，但另一个解决方案是从类路径检索模板并使用MessageFormat对其进行格式化

String result;
final StringWriter templateData = new StringWriter();
final InputStream templateIn = YourClassName.class.getClassLoader().getResourceAsStream(path);
  for(int b=templateIn.read(); b != -1; b=templateIn.read()){
     templateData.write(b);
  }
templateIn.close();
result = MessageFormat.format(templateData.toString(), arguments);

---

你试过了吗我已经看到了，但我不明白应该添加什么资源。loader=class.resource.loader.class=org.apache.velocity.runtime.resource.loader.classpathResourceLoader在配置文件中，您可以尝试哪个配置文件？我没有任何配置文件，然后为示例velocity.properties创建一个，并将其放入web inf/classes中，顺便说一句，如果您将模板目录放入web-inf/classes中，它可能会自行工作（如一个链接答案中所建议的）