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thymeleaf : TemplateInputException でハマった件

Posted at

th:replace を使いたいと思って、ちょっとだけハマりました。

失敗したやり方

/templates/admin/input.html で利用するために、以下の部品テンプレートを作成した。

/templates/components/buhin.html
<body>
    <input type="hidden" name="mode" th:value="${mode}" />
</body>

本体のテンプレートファイルが、

/templates/admin/input.html
<div th:replace="${components/buhin}"></div>

↓↓↓↓↓
以下のエラーが出た

org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/admin/input.html]")
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:241)
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
	at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:666)
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072)
	at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:354)
	at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:187)
(中略)
Caused by: org.attoparser.ParseException: Exception evaluating SpringEL expression: "components/buhin" (template: "admin/input" - line 30, col 7)
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393)
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257)
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230)
	... 86 common frames omitted
(後略)

修正した内容

/templates/components/buhin.html
<body>
    <div th:replace="components/buhin"></div>
</body>

これでOKだった。

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