타임리프의 조건식
if , unless ( if 의 반대)

 

BasicController 추가

@GetMapping("/condition")
public String condition(Model model) {
 addUsers(model);
 return "basic/condition";
}

 

 

/resources/templates/basic/condition.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head><body>
<h1>if, unless</h1>
<table border="1">
 <tr>
 <th>count</th>
 <th>username</th>
 <th>age</th>
 </tr>
 <tr th:each="user, userStat : ${users}">
 <td th:text="${userStat.count}">1</td>
 <td th:text="${user.username}">username</td>
 <td>
 <span th:text="${user.age}">0</span>
 <span th:text="'미성년자'" th:if="${user.age lt 20}"></span>
 <span th:text="'미성년자'" th:unless="${user.age ge 20}"></span>
 </td>
 </tr>
</table>
<h1>switch</h1>
<table border="1">
 <tr>
 <th>count</th>
 <th>username</th>
 <th>age</th>
 </tr>
 <tr th:each="user, userStat : ${users}">
 <td th:text="${userStat.count}">1</td>
 <td th:text="${user.username}">username</td>
 <td th:switch="${user.age}">
 <span th:case="10">10살</span>
 <span th:case="20">20살</span>
 <span th:case="*">기타</span>
 </td>
 </tr>
</table>
</body>
</html>

 

 

if, unless


타임리프는 해당 조건이 맞지 않으면 태그 자체를 렌더링하지 않는다.
만약 다음 조건이 false 인 경우 <span>...<span> 부분 자체가 렌더링 되지 않고 사라진다.
<span th:text="'미성년자'" th:if="${user.age lt 20}"></span>


switch


* 은 만족하는 조건이 없을 때 사용하는 디폴트이다.

 

 

 

 

출처 : 김영한 MVC2 강의

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