[英]Relating List-of-List Spring-Boot Model Fields to Thymeleaf
[英]Unable to iterate over List<List<String>> using Thymeleaf / Spring-Boot
使用Thymeleaf,我无法遍历List <List <String >>
<tr th:each="row : ${rows}">
<td th:text="${row[0]}"></td>
<td th:text="${row[1]}"></td>
</tr>
每行具有多个值。
渲染时,出现以下异常
2016-11-02 20:40:21.033 ERROR 44829 --- [nio-5252-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-5252-exec-1] Exception processing template "completed": Exception evaluating SpringEL expression: "row[1]" (completed:217)
2016-11-02 20:40:21.034 ERROR 44829 --- [nio-5252-exec-1] o.a.c.c.C.[.[.[.[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [/test-dashboard] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: "row[1]" (completed:217)] with root cause
org.springframework.expression.spel.SpelEvaluationException: EL1025E:(pos 3): The collection has '1' elements, index '1' is invalid
提前致谢。
双循环怎么样?
( 请注意 ,我不确定此XHTML
的有效性,您可能必须在TR
下使用与SPAN
不同的HTML
元素)
<tr th:each="row : ${rows}">
<span th:each="s : ${row}">
<td th:text="${s}"></td>
</span>
</tr>
如果您只想为它们每个生成一个TD
,请在TD
上添加另一个for-each:
<tr th:each="row : ${rows}">
<td th:each="rowValue : ${row}" th:text="${rowValue}"></td>
</tr>
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