Thymeleaf: validation error by field

问题

Using Thymeleaf + Spring and form validation, I want to display errors that are related to a field next to this field.

<input type="text"
  th:field="*{companyName}" class="form-control"
  placeholder="Code client" th:errorClass="'error'"/>

If the field has an error, the class "error" is applied indeed. But is there an easy way to display also the validation error of the field?

回答1:

Use this code to display error:

<p class="alert alert-danger" th:if="${#fields.hasErrors('companyName')}" th:errors="*{companyName}"></p>

来源：https://stackoverflow.com/questions/41510520/thymeleaf-validation-error-by-field