(一)Thymeleaf 是個什麼?css
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>2.1.4</version>
</dependency>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
3)就能夠用th標籤動態替換掉靜態數據了。以下圖,後臺傳出的message會將靜態數據「Red Chair」替換掉,若訪問靜態頁面,則顯示數據「Red Chair」。html
<td th:text="${message}">Red Chair</td>
2.整合springjava
1)加入thymeleaf-spring4-2.1.4.RELEASE.jar(http://www.thymeleaf.org/download.html )包,若用maven,則加入以下配置jquery
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring3</artifactId>
<version>2.1.4</version>
</dependency>
2)在servlet配置文件中加入以下代碼程序員
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package="com.test.thymeleaf.controller" />
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven />
<!--Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<!--springMVC+jsp的跳轉頁面配置-->
<!--<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">-->
<!--<property name="prefix" value="/WEB-INF/views/" />-->
<!--<property name="suffix" value=".jsp" />-->
<!--</bean>-->
<!--springMVC+thymeleaf的跳轉頁面配置-->
<bean id="templateResolver"
class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".html" />
<property name="templateMode" value="HTML5" />
</bean>
<bean id="templateEngine"
class="org.thymeleaf.spring4.SpringTemplateEngine">
<property name="templateResolver" ref="templateResolver" />
</bean>
<bean class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
<property name="templateEngine" ref="templateEngine" />
</bean>
3)將靜態頁面加到項目中,更改文件頭,加入th標籤便可。web
3.th標籤整理spring
1)簡單表達式express
--變量表達式 ${……}數組
<input type="text" name="userName" value="James Carrot" th:value="${user.name}" />
上述代碼爲引用user對象的name屬性值。瀏覽器
--選擇/星號表達式 *{……}
<div th:object="${session.user}">
<p>Nationality: <span th:text="*{nationality}">Saturn</span>.</p>
</div>
選擇表達式通常跟在th:object後,直接取object中的屬性。
--文字國際化表達式 #{……}
<p th:utext="#{home.welcome}">Welcome to our grocery store!</p>
調用國際化的welcome語句,國際化資源文件以下
resource_en_US.properties:
home.welcome=Welcome to here!
resource_zh_CN.properties:
home.welcome=歡迎您的到來!
-- URL表達式 @{……}
<a href="details.html" th:href="@{/order/details(orderId=${o.id})}">view</a>
<img src="../../static/assets/images/qr-code.jpg" th:src="@{${path}}" alt="二維碼" />
2)經常使用的th標籤
--簡單數據轉換(數字,日期)
<dt>價格</dt>
<dd th:text="${#numbers.formatDecimal(product.price, 1, 2)}">180</dd>
<dt>進貨日期</dt>
<dd th:text="${#dates.format(product.availableFrom, 'yyyy-MM-dd')}">2014-12-01</dd>
--字符串拼接
<dd th:text="${'$'+product.price}">235</dd>
--轉義和非轉義文本
當後臺傳出的數據爲「This is an <em>HTML</em> text. <b>Enjoy yourself!</b>」時,若頁面代碼以下則出現兩種不一樣的結果
<div th:text="${html}">
This is an <em>HTML</em> text. <b>Enjoy yourself!</b>
</div>
<div th:utext="${html}">
This is an <em>HTML</em> text. <b>Enjoy yourself!</b>
</div>
--表單中
<form th:action="@{/bb}" th:object="${user}" method="post" th:method="post">
<input type="text" th:field="*{name}"/>
<input type="text" th:field="*{msg}"/>
<input type="submit"/>
</form>
--顯示頁面的數據迭代
//用 th:remove 移除除了第一個外的靜態數據,用第一個tr標籤進行循環迭代顯示 <tbody th:remove="all-but-first"> //將後臺傳出的 productList 的集合進行迭代,用product參數接收,經過product訪問屬性值 <tr th:each="product:${productList}">
//用count進行統計,有順序的顯示 <td th:text="${productStat.count}">1</td> <td th:text="${product.description}">Red Chair</td> <td th:text="${'$' + #numbers.formatDecimal(product.price, 1, 2)}">$123</td> <td th:text="${#dates.format(product.availableFrom, 'yyyy-MM-dd')}">2014-12-01</td> </tr> <tr> <td>White table</td> <td>$200</td> <td>15-Jul-2013</td> </tr> <tr> <td>Reb table</td> <td>$200</td> <td>15-Jul-2013</td> </tr> <tr> <td>Blue table</td> <td>$200</td> <td>15-Jul-2013</td> </tr> </tbody>
--條件判斷
<span th:if="${product.price lt 100}" class="offer">Special offer!</span>
不能用"<」,">"等符號,要用"lt"等替代
<!-- 當gender存在時,選擇對應的選項;若gender不存在或爲null時,取得customer對象的name-->
<td th:switch="${customer.gender?.name()}">
<img th:case="'MALE'" src="../../../images/male.png" th:src="@{/images/male.png}" alt="Male" /> <!-- Use "/images/male.png" image -->
<img th:case="'FEMALE'" src="../../../images/female.png" th:src="@{/images/female.png}" alt="Female" /> <!-- Use "/images/female.png" image -->
<span th:case="*">Unknown</span>
</td>
<!--在頁面先顯示,而後再在顯示的數據基礎上進行修改-->
<div class="form-group col-lg-6">
<label>姓名<span> </span></label>
<!--除非resume對象的name屬性值爲null,不然就用name的值做爲placeholder值-->
<input type="text" class="form-control" th:unless="${resumes.name} eq '' or ${resumes.name} eq null"
data-required="true" th:placeholder="${resumes.name}" />
<!--除非resume對象的name屬性不爲空,不然就定義一個field方便封裝對象,並用placeholder提示-->
<input type="text" th:field="${resume.name}" class="form-control" th:unless="${resumes.name} ne null"
data-required="true" th:placeholder="請填寫您的真實姓名" />
</div>
<!-- 增長class="enhanced"當balance大雨10000 -->
<td th:class="${customer.balance gt 10000} ? 'enhanced'" th:text="${customer.balance}">350</td>
--根據後臺數據選中select的選項
<div class="form-group col-lg-6"> <label >性別<span> Sex:</span></label> <select th:field="${resume.gender}" class="form-control" th:switch="${resumes.gender.toString()}" data-required="true"> <option value="男" th:case="'男'" th:selected="selected" >男</option> <option value="女" th:case="'女'" th:selected="selected" >女</option> <option value="">請選擇</option> </select> </div>
由於gender是定義的Enum(枚舉)類型,因此要用toString方法。用th:switch指定傳出的變量,用th:case對變量的值進行匹配。!"請選擇"放在第一項會出現永遠選擇的是這個選項。或者用th:if
<div class='form-group col-lg-4'> <select class='form-control' name="skill[4].proficiency"> <option >掌握程度</option> <option th:if="${skill.level eq '通常'}" th:selected="selected">通常</option> <option th:if="${skill.level eq '熟練'}" th:selected="selected">熟練</option> <option th:if="${skill.level eq '精通'}" th:selected="selected">精通</option> </select> </div>
--spring表達式語言
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Thymeleaf tutorial: exercise 10</title>
<link rel="stylesheet" href="../../../css/main-static.css" th:href="@{/css/main.css}" />
<meta charset="utf-8" />
</head>
<body>
<h1>Thymeleaf tutorial - Solution for exercise 10: Spring Expression language</h1>
<h2>Arithmetic expressions</h2>
<p class="label">Four multiplied by minus six multiplied by minus two module seven:</p>
<p class="answer" th:text="${4 * -6 * -2 % 7}">123</p>
<h2>Object navigation</h2>
<p class="label">Description field of paymentMethod field of the third element of customerList bean:</p>
<p class="answer" th:text="${customerList[2].paymentMethod.description}">Credit card</p>
<h2>Object instantiation</h2>
<p class="label">Current time milliseconds:</p>
<p class="answer" th:text="${new java.util.Date().getTime()}">22-Jun-2013</p>
<h2>T operator</h2>
<p class="label">Random number:</p>
<p class="answer" th:text="${T(java.lang.Math).random()}">123456</p>
</body>
</html>
--內聯
<label for="body">Message body:</label>
<textarea id="body" name="body" th:inline="text"> Dear [[${customerName}]], it is our sincere pleasure to congratulate your in your birthday: Happy birthday [[${customerName}]]!!! See you soon, [[${customerName}]]. Regards, The Thymeleaf team </textarea>
--內聯JS <js起止加入以下代碼,不然引號嵌套或者"<"">"等不能用>
/*<![CDATA[*/ …… /*]]>*/
--js附加代碼:
/*[+ var msg = 'This is a working application'; +]*/
--js移除代碼:
/*[- */ var msg = 'This is a non-working template'; /* -]*/
4.不經常使用
--表達式
2)文字
--表達式基本對象