Thymeleaf，如何用th:src做条件语句？

Question

如果 dish.imageFolder 不为空 - 它应该是

<img th:src="@{${dish.imageFolder}}"/>

如果为 null - 此图片

  <img src="https://via.placeholder.com/150" alt=""/>

Answer 1

一个选项：

<img th:src="${dish.imageFolder != null} ? @{${dish.imageFolder}} : 'https://via.placeholder.com/150'" />

不过我可能只使用 th:if，像这样：

  <img th:if="${dish.imageFolder != null}" th:src="@{${dish.imageFolder}}" />
  <img th:if="${dish.imageFolder == null}" src="https://via.placeholder.com/150" />

Thymeleaf，如何用th:src做条件语句？

Thymeleaf, how to make conditional statement with th:src?

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