thymeleaf 显示表格的前 k 行

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问题描述

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我有一个表格和一个多行数据集.我不想跨越这个表的所有行.所以我创建了一个计数器，但在 if 条件下出现错误:

<table class="table"><th:block th:each="t_log : ${dataset.rows}" th:with="counter=${counter} + 1"><tr th:if="${counter <= 5 }"><td th:text="${t_log.title}"/><td th:if="${t_log.msg == '1'}" th:text="在线"/><td th:if="${t_log.msg == '0'}" th:text="离线"/></tr></th:block></tbody>

我从这里看到了一个例子:

http://forum.thymeleaf/Displaying-an-iterable-of-n-items-in-rows-of-3-items-with-thymeleaf-td4025738.html

但我的计数器没有成功.

解决方案

试试这个 Thymeleaf 有一个内置的 count 属性.请参阅文档的 6.2 http://www.thymeleaf/doc/tutorials/2.1/usingthymeleaf.html 还签出第 4.9 节，您可能需要将 <= 更改为 le;

<table class="table"><th:block th:each="t_log,count : ${dataset.rows}"><tr th:if="${count <= 5 }"><td th:text="${t_log.title}"/><td th:if="${t_log.msg == '1'}" th:text="在线"/><td th:if="${t_log.msg == '0'}" th:text="离线"/></tr></th:block></tbody>

I have a table and a multiline dataset. I do not want to span all the rows of this table. So I created a counter but I get an error at the if condition:

<div th:if="${dataset}" th:with="counter=0">

    <table class="table">
        <tbody>
        <th:block th:each="t_log : ${dataset.rows}" th:with="counter=${counter} + 1">

            <tr th:if="${counter <= 5 }">
                <td th:text="${t_log.title}"/>
                <td th:if="${t_log.msg == '1'}" th:text="Online"/>
                <td th:if="${t_log.msg == '0'}" th:text="Offline"/>
            </tr>
        </th:block>
        </tbody>
    </table>
</div>

I have seen an example from here:

http://forum.thymeleaf/Displaying-an-iterable-of-n-items-in-rows-of-3-items-with-thymeleaf-td4025738.html

But my counter does not do the trick.

解决方案

Try this Thymeleaf has a built in count property. See 6.2 of the documentation http://www.thymeleaf/doc/tutorials/2.1/usingthymeleaf.html also checkout section 4.9 you may need to change <= to le;

<div th:if="${dataset}">

    <table class="table">
        <tbody>
        <th:block th:each="t_log,count : ${dataset.rows}">

            <tr th:if="${count <= 5 }">
                <td th:text="${t_log.title}"/>
                <td th:if="${t_log.msg == '1'}" th:text="Online"/>
                <td th:if="${t_log.msg == '0'}" th:text="Offline"/>
            </tr>
        </th:block>
        </tbody>
    </table>
</div>

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