java - thymeleaf :block not working any more

Question

我在 Thymeleaf 中编写了一段代码:

<th:block th:if="${i.mid} > ${yesterday.tableRateModel.rates[e.index].mid}">
                        <i class="glyphicon glyphicon-arrow-up"></i>
                    </th:block>
                    <th:block th:if="${i.mid} == ${yesterday.tableRateModel.rates[e.index].mid}">
                        <i class="glyphicon glyphicon-resize-small"></i>
                    </th:block>
                    <th:block th:if="${i.mid} < ${yesterday.tableRateModel.rates[e.index].mid}">
                        <i class="glyphicon glyphicon-arrow-down"></i>
                    </th:block>

在这种情况下，我收到如下错误: org.xml.sax.SAXParseException: The value of attribute "th:if" associated with an element type "th:block" must not contain the '<' character.

但是当我评论最后一个th:block时一切正常。怎么了？

问题出在 <

Answer 1

使用这个:

&lt; for <
&gt; for >
&le; for <=
&ge; for >=