thymeleaf参考手册

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
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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
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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>
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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> 
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  • ${}:变量表达式
ongl标准语法,方法也可以被调用
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  • *{} :选择变量表达式
<div th:object="${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>  
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  • @{}: 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>
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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'))
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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).
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5、预处理

__${expression}__
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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>
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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>
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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}">)
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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

这里写图片描述

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! */-->
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  • 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>
<!--*/-->
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  • 运行后才会看到
<span>hello!</span>
<!--/*/
<div th:text="${true}">...</div>
/*/-->
<span>goodbye!</span>
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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>
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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>
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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>
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  • javascript: /[[…]]/
<script th:inline="javascript">
    var username = /*[[
        #{test}
    ]]*/;
    var name = /*[[
        ${param.name[0]}+${execInfo.templateName}+'-'+${#dates.createNow()}+'-'+${#locale}
    ]]*/;
</script>
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<script th:inline="javascript">

/*<![CDATA[*/

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

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

/*]]>*/

</script>
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  • adding code: /* [+…+]*/
var x = 23;
/*[+
var msg = 'Hello, ' + [[${session.user.name}]]; +]*/
var f = function() {
...
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  • removind code: /[- / and /* -]*/
var x = 23;
/*[- */
var msg = 'This is a non-working template'; /* -]*/
var f = function() {
...
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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">
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15、特殊用法展示

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

application

httpServletRequest

themes : as JSP tag spring:theme

Spring Beans 的访问

<div th:text="${@authService.getUserName()}">...</div>
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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>
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<div th:include="mytemplate :: [div.content]">...</div>

posted on 2018-03-24 00:11  房客  阅读(200)  评论(0编辑  收藏

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