1、创建 html

    <!DOCTYPE html><html xmlns:th="http://www.thymeleaf.org"></html>

    另外：xmlns:layout="http://www.ultraq.net.nz/web/thymeleaf/layout".

    th:* attributes ： 

    layout:* attributes

注意：html 中的标签必须严格规范，标签必须闭合，即<div />技术或者</div>类似结束

2、使用文本

语法	说明
{home.welcome}	使用国际化文本,国际化传参直接追加(value…)
${user.name}	使用会话属性
@{}	`<link rel="stylesheet" type="text/css" media="all"href="../../css/gtvg.css" th:href="@{/css/gtvg.css}" />`
–	–
${} 中预存对象（表达式中基本对象）
param	获取请求参数，比如${param.name},http://localhost:8080?name=jeff
session	获取 session 的属性
application	获取 application 的属性
execInfo	有两个属性 templateName和 now(是 java 的 Calendar 对象)
ctx
vars
locale
httpServletRequest
httpSession
–	–
th扩展标签
th:text	普通字符串
th:utext	转义文本
th:href
th:attr	`<img src="../../images/gtvglogo.png" th:attr="src=@{/images/gtvglogo.png},title=#{logo},alt=#{logo}" />`
th:with	定义常量
th:attrappend
th:classappend
th:styleappend

其他th标签

*	*	*
th:abbr	th:accept	th:accept-charset
th:abbr	th:accept	th:accept-charset
th:accesskey	th:action	th:align
th:alt	th:archive	th:audio
th:autocomplete	th:axis	th:background
th:bgcolor	th:border	th:cellpadding
th:cellspacing	th:challenge	th:charset
th:cite	th:class	th:classid
th:codebase	th:codetype	th:cols
th:colspan	th:compact	th:content
th:contenteditable	th:contextmenu	th:data
th:datetime	th:dir	th:draggable
th:dropzone	th:enctype	th:for
th:form	th:formaction	th:formenctype
th:formmethod	th:formtarget	th:frame
th:frameborder	th:headers	th:height
th:high	th:href	th:hreflang
th:hspace	th:http-equiv	th:icon
th:id	th:keytype	th:kind
th:label	th:lang	th:list
th:longdesc	th:low	th:manifest
th:marginheight	th:marginwidth	th:max
th:maxlength	th:media	th:method
th:min	th:name	th:optimum
th:pattern	th:placeholder	th:poster
th:preload	th:radiogroup	th:rel
th:rev	th:rows	th:rowspan
th:rules	th:sandbox	th:scheme
th:scope	th:scrolling	th:size
th:sizes	th:span	th:spellcheck
th:src	th:srclang	th:standby
th:start	th:step	th:style
th:summary	th:tabindex	th:target
th:title	th:type	th:usemap
th:value	th:valuetype	th:vspace
th:width	th:wrap	th:xmlbase
th:xmllang	th:xmlspace	th:alt-title 或th:lang-xmllang（如果其中两个属性值相同）

对于 html5 元素名称的另一种友好写法

<table>

    <tr data-th-each="user : ${users}">

    <td data-th-text="${user.login}">...</td>

    <td data-th-text="${user.name}">...</td> </tr>

</table>

3、表达式语法

1、简单表达式语法

#{...} : Message 表达式

<p th:utext="#{home.welcome(${session.user.name})}"> Welcome to our grocery store, Sebastian Pepper!</p>

<p th:utext="#{${welcomeMsgKey}(${session.user.name})}"> Welcome to our grocery store, Sebastian Pepper!</p>

${}:变量表达式

ongl标准语法，方法也可以被调用

*{} ：选择变量表达式

<div th:object="${session.user}">

    <p>Name: <span th:text="*{firstName}">Sebastian</span>.</p>

    <p>Surname: <span th:text="*{lastName}">Pepper</span>.</p>

    <p>Nationality: <span th:text={nationality}">Saturn</span>.</p>

</div>

等价于

<div>

    <p>Name: <span th:text="${session.user.firstName}">Sebastian</span>.</p>

    <p>Surname: <span th:text="${session.user.lastName}">Pepper</span>.</p>

    <p>Nationality: <span th:text="${session.user.nationality}">Saturn</span>.</p>

</div>

当然了，这两者可以混合使用

还有一种方式

<div>

    <p>Name: <span th:text="*{session.user.name}">Sebastian</span>.</p>

    <p>Surname: <span th:text="*{session.user.surname}">Pepper</span>.</p>

    <p>Nationality: <span th:text="*{session.user.nationality}">Saturn</span>.</p>

</div>

@{}: 链接 URL 表达式

<!-- Will produce 'http://localhost:8080/gtvg/order/details?orderId=3' (plus rewriting) --> <a href="details.html"

th:href="@{http://localhost:8080/gtvg/order/details(orderId=${o.id})}">view</a> <!-- Will produce '/gtvg/order/details?orderId=3' (plus rewriting) -->

<a href="details.html" th:href="@{/order/details(orderId=${o.id})}">view</a>

<!-- Will produce '/gtvg/order/3/details' (plus rewriting) -->

<a href="details.html" th:href="@{/order/{orderId}/details(orderId=${o.id})}">view</a>

2、变量

分类	示例
文本	‘one text’ , ‘Another one!’ ,…
数字	0 , 34 , 3.0 , 12.3 ,…
真假	true , false
文字符号	one , sometext , main ,…

3、字符连接

分类	示例
+	‘The name is ‘+${name}
\|…\|	\|The name is ${name}\|

4、算数运算

语法	示例
+, -, *, /, %	二元运算符
-	减号（一元运算符）

5、真假运算

分类	示例
and , or	二元运算符
! , not	否定（一元运算符）

6、比较运算

分类	示例
>, <, >=, <= (gt, lt, ge, le)	比较
== , != ( eq , ne )	平等

7、条件运算

分类	示例
if-then	(if) ? (then)
if-then-else	(if) ? (then) : (else)
Default	(value) ?: (defaultvalue)

综合示例：

'User is of type ' + (${user.isAdmin()} ? 'Administrator' : (${user.type} ?: 'Unknown'))

4、表达式中使用内置对象

#dates :

utility methods for java.util.Date objects: formatting, component extraction, etc. #calendars : analogous to #dates , but for java.util.Calendar objects.

#numbers :

utility methods for formatting numeric objects.

#strings :

utility methods for String objects: contains, startsWith, prepending/appending, etc. #objects : utility methods for objects in general.

#bools :

utility methods for boolean evaluation. #arrays : utility methods for arrays.

#lists :

utility methods for lists.

#sets :

utility methods for sets.

#maps :

utility methods for maps.

#aggregates :

utility methods for creating aggregates on arrays or collections.

#messages :

utility methods for obtaining externalized messages inside variables expressions, in the same way as they would be obtained using #{...} syntax.

#ids :

utility methods for dealing with id attributes that might be repeated (for example, as a result of an iteration).

5、预处理

__${expression}__

6、循环

<tr th:each="prod : ${prods}">

    <td th:text="${prod.name}">Onions</td>

    <td th:text="${prod.price}">2.41</td>

    <td th:text="${prod.inStock}? #{true} : #{false}">yes</td>

</tr>

迭代器的状态

index: 当前的索引，从0开始

count: 当前的索引，从1开始

size：总数

current:

even/odd:

first

last

<table>

    <tr>

        <th>NAME</th>

        <th>PRICE</th>

        <th>IN STOCK</th>

    </tr>

    <tr th:each="prod,iterStat : ${prods}" th:class="${iterStat.odd}? 'odd'">

    <td th:text="${prod.name}">Onions</td>

    <td th:text="${prod.price}">2.41</td>

    <td th:text="${prod.inStock}? #{true} : #{false}">yes</td>

  </tr>

</table>

7、判断



if

<a href="comments.html" th:href="@{/product/comments(prodId=${prod.id})}" th:if="${not #lists.isEmpty(prod.comments)}">view</a>

unless

<a href="comments.html" th:href="@{/comments(prodId=${prod.id})}" th:unless="${#lists.isEmpty(prod.comments)}">view</a>

switch

<div th:switch="${user.role}">

    <p th:case="'admin'">User is an administrator</p> <p th:case="#{roles.manager}">User is a manager</p>

</div>

<div th:switch="${user.role}">

    <p th:case="'admin'">User is an administrator</p> <p th:case="#{roles.manager}">User is a manager</p> <p th:case="*">User is some other thing</p>

</div>

8、模板布局

th:fragment

示例

templates/footer.html

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-4.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"

    <body>

         <div th:fragment="copy">

            © 2011 The Good Thymes Virtual Grocery

         </div>

    </body>

</html>

templates/index.html中使用

    <body> ...

        <div th:include="footer :: copy"></div>

    </body>

或者

    ...

    <div id="copy-section">

        © 2011 The Good Thymes Virtual Grocery

    </div>

    ...

使用

    <body> ...

        <div th:include="footer :: #copy-section"></div>

    </body>

th:include 和 th:replace 区别

th:include 加入代码

th:replace 替换代码

模板传参：参数传递顺序不强制

    定义

<div th:fragment="frag (onevar,twovar)">

    <p th:text="${onevar} + ' - ' + ${twovar}">...</p>

</div>

    使用

<div th:include="::frag (${value1},${value2})">...</div>

<div th:include="::frag (onevar=${value1},twovar=${value2})">...</div>

等价于 <div th:include="::frag" th:with="onevar=${value1},twovar=${value2}">）

9、移除标签 th:remove

取值范围

all：移除所有
body：不移除自己，但移除他的子标签
tag: 只移除自己，不移除他的子标签
all-but-first：移除所有内容除第一个外
none：啥都不做

10、执行顺序

11、thymeleaf注释语法

html 看不到，并且 thymeleaf 不会执行

<!--/* This code will be removed at thymeleaf parsing time! */-->

and 未运行可以在 html 中看到，运行后就消失

<!--/*-->

   <div>you can see me only before thymeleaf processes me! </div>

<!--*/-->

运行后才会看到

<span>hello!</span>

<!--/*/

<div th:text="${true}">...</div>

/*/-->

<span>goodbye!</span>

12、th:block 的使用

<table>

    <th:block th:each="user : ${users}">

    <tr>

        <td th:text="${user.login}">...</td> <td th:text="${user.name}">...</td>

    </tr>

    <tr>

        <td colspan="2" th:text="${user.address}">...</td>

    </tr>

    </th:block>

</table>

推荐下面写法（编译前看不见）

<table>

    <tr>

        <td th:text="${user.login}">...</td>

        <td th:text="${user.name}">...</td> </tr>

        <tr>

        <td colspan="2" th:text="${user.address}">...</td>

    </tr>

    <!--/*/ </th:block> /*/-->

</table>

13、文本内联th:inline

th:inline 可以等于 text , javascript(dart) , none

text: [[…]]

<p th:inline="text">Hello, [[#{test}]]</p>

javascript: /[[…]]/

<script th:inline="javascript">

    var username = /*[[

        #{test}

    ]]*/;

    var name = /*[[

        ${param.name[0]}+${execInfo.templateName}+'-'+${#dates.createNow()}+'-'+${#locale}

    ]]*/;

</script>

<script th:inline="javascript">

/*<![CDATA[*/

    var username = [[#{test}]];

    var name = [[${param.name[0]}+${execInfo.templateName}+'-'+${#dates.createNow()}+'-'+${#locale}]];

/*]]>*/

</script>

adding code: /* [+…+]*/

var x = 23;

/*[+

var msg = 'Hello, ' + [[${session.user.name}]]; +]*/

var f = function() {

...

removind code: /[- / and /* -]*/

var x = 23;

/*[- */

var msg = 'This is a non-working template'; /* -]*/

var f = function() {

...

14、验证模板的正确性

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-4.dtd">

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-transitional-thymeleaf-4.dtd">

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-frameset-thymeleaf-4.dtd">

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml11-thymeleaf-4.dtd">

15、特殊用法展示

<td th:text="${#aggregates.sum(o.orderLines.{purchasePrice * amount})}">23.32</td>

以上表示List orderLines的所有订单的总价

附件A: 基础对象

ctx：对应org.thymeleaf.spring[3|4].context.SpringWebContext

/*

* ======================================================================

* See javadoc API for class org.thymeleaf.context.IContext

* ====================================================================== */

${#ctx.locale} ${#ctx.variables}

/*

* ======================================================================

* See javadoc API for class org.thymeleaf.context.IWebContext

* ====================================================================== */

${#ctx.applicationAttributes}

${#ctx.httpServletRequest}

${#ctx.httpServletResponse}

${#ctx.httpSession}

${#ctx.requestAttributes}

${#ctx.requestParameters}

${#ctx.servletContext}

${#ctx.sessionAttributes}

locale: 对应java.util.Locale

vars: 对应 org.thymeleaf.context.VariablesMap

/*

* ====================================================================== * See javadoc API for class org.thymeleaf.context.VariablesMap

* ====================================================================== */

${#vars.get('foo')}

${#vars.containsKey('foo')}

${#vars.size()}

...

param

${param.foo} 是一个 String[] 如果要获取需要${param.foo[0]}

/*

* ============================================================================ * See javadoc API for class org.thymeleaf.context.WebRequestParamsVariablesMap * ============================================================================ */

${param.foo} // Retrieves a String[] with the values of request parameter 'foo'

${param.size()}

${param.isEmpty()}

${param.containsKey('foo')}

...

session

application

httpServletRequest

themes : as JSP tag spring:theme

Spring Beans 的访问

<div th:text="${@authService.getUserName()}">...</div>

附件B:工具对象

dates See javadoc API for class org.thymeleaf.expression.Dates
calendars See javadoc API for class org.thymeleaf.expression.Calendars
numbers See javadoc API for class org.thymeleaf.expression.Numbers
strings See javadoc API for class org.thymeleaf.expression.Strings
objects See javadoc API for class org.thymeleaf.expression.Objects
bools See javadoc API for class org.thymeleaf.expression.Bools
arrays See javadoc API for class org.thymeleaf.expression.Arrays
lists See javadoc API for class org.thymeleaf.expression.Lists
sets See javadoc API for class org.thymeleaf.expression.Sets
maps See javadoc API for class org.thymeleaf.expression.Maps
aggregates See javadoc API for class org.thymeleaf.expression.Aggregates
messages See javadoc API for class org.thymeleaf.expression.Messages
ids See javadoc API for class org.thymeleaf.expression.Ids

附件C:DOM 选择器语法

DOM选择器借语法功能从XPath，CSS和jQuery，为了提供一个功能强大且易于使用的方法来指定模板片段

<div th:include="mytemplate :: [//div[@class='content']]">...</div>

<div th:include="mytemplate :: [div.content]">...</div>

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