Thymeleaf

<th:block> ... </th:block>

<a th:href="@{/path/to/page}">Link</a>

<a th:href="@{/path/to/page( param1=${value1}, param2=${value2} )">Link</a>

<a th:href="/path/to/page?param1=10&param2=20">Link</a>

<th:block th:if="${condition}"> ... </th:block>

boolean checked = true; // 또는 false

<th:block th:if="${checked}"> <h1>checked 조건이 true 일때</h1> </th:block>

int age = 20;

<th:if="${ age >= 20 }"> <h1>age >= 20 조건이 만족할 때</h1> </th:if>

public class Person { String name = "ALOHA"; int age = 20; }

<th:if="${ person.age >= 20 }"> <h1>age >= 20 조건이 만족할 때</h1> </th:if>

public class Person { String name = "ALOHA"; int age = 20; }

<th:if="${ person.name == 'ALOHA' }"> <h1>age >= 20 조건이 만족할 때</h1> </th:if>

<th:block th:if="${ person != null && #strings.equals( person.name, 'ALOHA' ) }"> <h1 th:text="${ person.name }"></h1> </th:block>

<th:block th:if="${ person != null and person.name == 'ALOHA' }"> <h1 th:text="${ person.name }"></h1> </th:block>

<th:block th:if="${ person != null && #strings.equals( person.name, 'ALOHA' ) }"> <h1 th:text="${ person.name }"></h1> </th:block>

<h1 th:text="${ person == null ? '이름없음' : person.name }"></h1>

<th:block th:switch="${variable}"> <th:case="value1">...</th:case> <th:case="value2">...</th:case> <th:case="value3">...</th:case> ... </th:block>

<th:block th:each="item : ${items}"> ... </th:block>

<th:block th:each="요소, iterStat : ${배열 or 컬렉션}"> <th:block th:text="${ 요소 }"></th:block> <th:block th:text="${ 요소.변수 }"></th:block> </th:block>

<th:block th:each="item, iterStat : ${items}"> index : <th:block th:text=${iterStat.index}></th:block> count: <th:block th:text=${iterStat.count}></th:block> size: <th:block th:text=${iterStat.size}></th:block> ... </th:block>

<th:block th:each="요소, iterStat : ${배열 or 컬렉션}" th:if="${ 조건 }"> <th:block th:text="${ 요소 }"></th:block> <th:block th:text="${ 요소.변수 }"></th:block> </th:block>

public class Users { public String username; public String password; public String name; public List<UserAuth> authList; }

public class UserAuth { public String username; public String auth; }

List<Users> userList;

<th:block th:each="user, iterStat : ${userList}"> <th:block th:text="${user.name}"></th:block> ... <th:block th:each="auth, iterStat : ${user.authList}"> <th:block th:text="${auth.username}"></th:block> <th:block th:text="${auth.auth}"></th:block> ... </th:block> </th:block>

<th:block th:if="${ 컬렉션.isEmpty()}"> </th:block>

<th:block th:if=" #lists.isEmpty( 컬렉션 ) "> </th:block>

<th:block th:each=" item, iterStat : ${items}" > <tr class="row" th:classappend="${ iterStat.odd ? 'odd' : 'even' }"> <td><th:block th:text="${iterStat.index}"></th:block></td> <td><th:block th:text="${iterStat.count}"></th:block></td> <td><th:block th:text="${iterStat.size}"></th:block></td> <td><th:block th:text="${item}"></th:block></td> <td><th:block th:text="${iterStat.odd}"></th:block></td> <td><th:block th:text="${iterStat.even}"></th:block></td> <td><th:block th:text="${iterStat.first}"></th:block></td> <td><th:block th:text="${iterStat.last}"></th:block></td> </tr> </th:block>

<div th:object="${user}"> <ul> <li th:text="*{no}"></li> <li th:text="*{id}"></li> <li th:text="*{username}"></li> <li th:text="*{password}"></li> <li th:text="*{name}"></li> <li th:text="*{ #dates.format( createdAt, 'yyyy-MM-dd HH:mm:ss' ) }"></li> <li th:text="*{ #dates.format( updatedAt, 'yyyy-MM-dd HH:mm:ss' ) }"></li> </ul> </div>

<form action="" method="post" th:object="${user}"> <input type="text" th:field="*{no}"> <br> <input type="text" th:field="*{id}"> <br> <input type="text" th:field="*{username}"> <br> <input type="text" th:field="*{password}"> <br> <input type="text" th:field="*{name}"> <br> </form>

<form action="" method="post"> <input type="text" id="no" name="no" value="1"> <br> <input type="text" id="id" name="id" value="c8f3ed9e-b16e-4d94-9c5c-1eaf1e5b17f1"> <br> <input type="text" id="username" name="username" value="ALOHA"> <br> <input type="text" id="password" name="password" value="123456"> <br> <input type="text" id="name" name="name" value="알로하"> <br> </form>

<form action="" method="post" th:object="${user}"> ... <input type="radio" id="male" value="남자" name="gender" th:checked="*{ gender == '남자' }"> <label for="male">남자</label> <input type="radio" id="female" value="여자" name="gender" th:checked="*{ gender == '여자' }"> <label for="female">여자</label> ... </form>

<form action="" method="post" th:object="${user}"> ... <select th:field="*{type}"> <option value="사용자 타입" disabled>사용자 타입</option> <option value="사용자">사용자</option> <option value="관리자">관리자</option> </select> ... </form>

<form action="" method="post" th:object="${user}"> ... <select name="type"> <option value="선택안함" th:selected="*{ type == null }">선택안함</option> <option value="사용자" th:selected="*{ type == '사용자' }">사용자</option> <option value="관리자" th:selected="*{ type == '관리자' }">관리자</option> </select> ... </form>

<form action="" method="post" th:object="${user}"> ... <input type="date" th:value="*{ #dates.format( createdAt, 'yyyy-MM-dd' ) }" id="createdAt" name="createdAt"> <br> <input type="date" th:value="*{ #dates.format( updatedAt, 'yyyy-MM-dd' ) }" id="updatedAt" name="updatedAt"> <br> ... </form>

<div th:with="userName=${user.name}"> <p th:text="|안녕하세요, ${userName}님!|"></p> <p th:text="|${userName}님의 정보입니다.|"></p> </div>

<div th:with="firstName=${user.name}, lastName=${user.surname}"> <p th:text="|이름: ${firstName} ${lastName}|"></p> </div>

<div th:with="totalPrice=${product.price * product.quantity}, discount=${totalPrice * 0.1}, finalPrice=${totalPrice - discount}"> <p>상품 가격: <span th:text="${totalPrice}"></span>원</p> <p>할인 금액: <span th:text="${discount}"></span>원</p> <p>최종 가격: <span th:text="${finalPrice}"></span>원</p> </div>

<tr th:each="user : ${userList}" th:with="isAdmin=${user.type == '관리자'}"> <td th:text="${user.name}"></td> <td th:text="${isAdmin} ? '관리자' : '일반 사용자'"></td> <td> <span th:if="${isAdmin}" class="badge">ADMIN</span> </td> </tr>

// 로그인 유저 Users loginUser = new Uers(); loginUser.setNo(1L); loginUser.setId( UUID.randomUUID().toString() ); loginUser.setUsername("ALOHA"); loginUser.setPassword("123456"); loginUser.setName("오승원"); loginUser.setGender("여자"); // 남자 여자 loginUser.setType("관리자"); // 사용자 관리자 loginUser.setCreatedAt(new Date()); loginUser.setUpdatedAt(new Date()); loginUser.setAuthList(authList); session.setAttribute("loginUser", loginUser); model.addAttribute("loginUser", loginUser);

@Data @NoArgsConstructor @AllArgsConstructor @Builder public class Users { private Long no; private String id; private String username; private String password; private String name; private String gender; private String type; private Date createdAt; private Date updatedAt; List<UserAuth> authList; // 사용자 권한 확인 메소드 public boolean containsAuth(String auth) { for (UserAuth userAuth : authList) { if (userAuth.getAuth().equals(auth)) { return true; } } return false; } }

<!-- 세션 가져오기 --> <h2>${session.loginUser}</h2> <h3 th:text="${session.loginUser.name}"></h3> <h3 th:text="${session.loginUser.username}"></h3> <h3 th:text="${session.loginUser.password}"></h3>

// 권한 UserAuth roleUser = UserAuth.builder().auth("ROLE_USER").build(); UserAuth roleAdmin = UserAuth.builder().auth("ROLE_ADMIN").build(); List<UserAuth> authList = List.of( roleUser, roleAdmin ); // 로그인 유저 Users loginUser = new Uers(); loginUser.setNo(1L); loginUser.setId( UUID.randomUUID().toString() ); loginUser.setUsername("ALOHA"); loginUser.setPassword("123456"); loginUser.setName("오승원"); loginUser.setGender("여자"); // 남자 여자 loginUser.setType("관리자"); // 사용자 관리자 loginUser.setCreatedAt(new Date()); loginUser.setUpdatedAt(new Date()); loginUser.setAuthList(authList);

@Data @NoArgsConstructor @AllArgsConstructor @Builder public class Users { private Long no; private String id; private String username; private String password; private String name; private String gender; private String type; private Date createdAt; private Date updatedAt; List<UserAuth> authList; // 사용자 권한 확인 메소드 public boolean containsAuth(String auth) { for (UserAuth userAuth : authList) { if (userAuth.getAuth().equals(auth)) { return true; } } return false; } }

@Data @Builder public class UserAuth { private String username; private String auth; }

... <input type="checkbox" name="authList" id="role_user" th:checked="${ loginUser.containsAuth('ROLE_USER') }"> <label for="role_user">ROLE_USER</label> <input type="checkbox" name="authList" id="role_admin" th:checked="${ loginUser.containsAuth('ROLE_ADMIN') }"> <label for="role_admin">ROLE_ADMIN</label> <br>