Thymeleaf和SpringBoot的NoSuchMessageException

Question

我正在用百里香做一个SpringBoot应用程序，但是我无法使验证器消息起作用。我收到有关validation.propeties的消息，但总是收到错误消息：

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/app/person/addPerson.html]")] with root cause

org.springframework.context.NoSuchMessageException: No message found under code 'NotEmpty.personForm.name' for locale 'en_US'.

我尝试将应用程序设置为在配置文件中使用固定语言，并尝试创建validate_en_US.propeties。

validator.properties：

NotEmpty=This field is required.

PersonValidador.java

@Override
    public void validate(Object o, Errors errors) {
        Person user = (Person) o;
        ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "NotEmpty");
    }

PersonController.java

@PostMapping("/app/addperson")
    public String addPerson(@ModelAttribute("personForm") Person person, BindingResult bindingResult) {
        System.out.println(person.getName());
        personValidator.validate(person, bindingResult);

        if (bindingResult.hasErrors()) {
            return "app/person/addPerson";
        }
        return "app/person/listPerson";
    }

addPerson.html

<form role="form" th:action="@{/app/addperson}"
                      th:object="${personForm}" method="POST">
                    <div class="box-body">
                        <div class="row">
                            <div class="col-md-12">
                                <div class="form-group">
                                    <label for="name">Name</label>
                                    <input th:field="*{name}" th class="form-control" id="name" placeholder="" type="text">
                                    <ul th:if="${#fields.hasErrors('name')}">
                                        <li th:each="err : ${#fields.errors('name')}" th:text="${err}">Input is incorrect</li>
                                    </ul>
                                </div>
                            </div>
                        </div>
                    </div>
                    <div class="box-footer">
                        <button class="btn btn-primary" type="submit">Submit</button>
                    </div>
                </form>

错误：

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/app/person/addPerson.html]")] with root cause

org.springframework.context.NoSuchMessageException: No message found under code 'NotEmpty.personForm.name' for locale 'en_US'.

我不知道我在做什么错。有人可以帮我吗？