[SpringBoot2.4.3] Thymeleafインライン・レイアウト1

controller

	@RequestMapping("/{id}")
	public ModelAndView index(@PathVariable int id, ModelAndView mav) {
		mav.setViewName("index");
		mav.addObject("id", id);
		mav.addObject("check", id % 2 == 0);
		mav.addObject("trueVal", "Even number!");
		mav.addObject("falseVal", "Odd number...");
		return mav;
	}

	<p th:text="${id} + ' is '+ (${check} ? ${trueVal} : ${falseVal})"></p>

thymeleaf側で計算すると不思議な感じするなー

	@RequestMapping("/{id}")
	public ModelAndView index(@PathVariable int id, ModelAndView mav) {
		mav.setViewName("index");
		mav.addObject("id", id);
		mav.addObject("check", id  >= 0);
		mav.addObject("trueVal", "POSITIVE!");
		mav.addObject("falseVal", "negative...");
		return mav;
	}

	<p th:if="${check}" th:text="${id} + ' is ' + ${trueVal}">message.</p>
	<p th:unless="${check}" th:text="${id} + ' is ' + ${falseVal}">message.</p>

なんやこれ

	@RequestMapping("/{month}")
	public ModelAndView index(@PathVariable int month, ModelAndView mav) {
		mav.setViewName("index");
		int m = Math.abs(month) % 12;
		m = m == 0 ? 12 : m;
		mav.addObject("month", m);
		mav.addObject("check", Math.floor(m / 3));
		return mav;
	}

	<p th:if="${check}" th:text="${id} + ' is ' + ${trueVal}">message.</p>
	<div th:switch="${check}">
		<p th:case="0" th:text="|${month} - Winter|"></p>
		<p th:case="1" th:text="|${month} - Spring|"></p>
		<p th:case="2" th:text="|${month} - Summer|"></p>
		<p th:case="3" th:text="|${month} - Autumn|"></p>
		<p th:case="4" th:text="|${month} - Winter|"></p>
		<p th:case="*">...?</p>
	</div>

なんやこれは。。。普段きちんとコーディングしているかどうか一発でわかるな。ビビるわ。