标准语法

• ${…} : Variable expressions.

• *{…} : Selection expressions.

• {…} : Message (i18n) expressions.

• @{…} : Link (URL) expressions.

• ~{…} : Fragment expressions.

Variable expressions

${session.user.name}
<span th:text="${book.author.name}">
((Book)context.getVariable("book")).getAuthor().getName()
<li th:each="book : ${books}">
//Here ${books} selects the variable called books from the context(环境), and evaluates(评价) it as an iterable to be used at a th:each loop.

Selection expressions

*{customer.name}
<div th:object="${book}">
  ...
  <span th:text="*{title}">...</span>
  ...
</div>
{
  // th:object="${book}"
  final Book selection = (Book) context.getVariable("book");
  // th:text="*{title}"
  output(selection.getTitle());
}

Message (i18n) expressions

i18n：国际化

#{main.title}
#{message.entrycreated(${entryId})}
<table>
  ...
  <th th:text="#{header.address.city}">...</th>
  <th th:text="#{header.address.country}">...</th>
  ...
</table>
#{${config.adminWelcomeKey}(${session.user.name})}

Link (URL) expressions

<a th:href="@{/order/list}">...</a>
<a href="/myapp/order/list">...</a>
<a href="/myapp/order/list;jsessionid=23fa31abd41ea093">...</a>
<a th:href="@{/order/details(id=${orderId},type=${orderType})}">...</a>
<!-- Note ampersands (&) should be HTML-escaped in tag attributes... -->
<a href="/myapp/order/details?id=23&amp;type=online">...</a>
<!--relative url-->
<a th:href="@{../documents/report}">...</a>
<a th:href="@{~/contents/main}">...</a>
<!--absolute(绝对的) URLs-->
<a th:href="@{//static.mycompany.com/res/initial}">...</a>
<a th:href="@{http://www.mycompany.com/main}">...</a>

Fragment expressions

<div th:insert="~{commons :: main}">...</div>
<div th:with="frag=~{footer :: #main/text()}">
  <p th:insert="${frag}">
</div>

Literals and operations

1. Literals:

• Text literals: ‘one text’, ‘Another one!’,…

• Number literals: 0, 34, 3.0, 12.3,…

• Boolean literals: true, false

• Null literal: null
  Literal tokens: one, sometext, main,…

1. Text operations:

• String concatenation: +

• Literal substitutions: |The name is ${name}|

1. Arithmetic operations:

• Binary operators: +, -, *, /, %

• Minus sign (unary(一元的) operator): -

1. Boolean operations:

• Binary operators: and, or

• Boolean negation(否定) (unary operator): !, not

1. Comparisons and equality:

• Comparators: >, <, >=, <= (gt, lt, ge, le)

• Equality operators: ==, != (eq, ne)

1. Conditional operators:

• If-then: (if) ? (then)

• If-then-else: (if) ? (then) : (else)

• Default: (value) ?: (defaultvalue)

基本属性

1. th:text

<p th:text="#{msg.welcome}">Welcome everyone!</p>

1. th:each

<li th:each="book : ${books}" th:text="${book.title}">En las Orillas del Sar</li>

1. 自定义标签

<form th:action="@{/createOrder}">
<input type="button" th:value="#{form.submit}" />
<a th:href="@{/admin/users}">

1. 丹丹

参考链接

1. Getting started with the Standard dialects in 5 minutes

2. The Thymeleaf Interactive Tutorial

3. thymeleaf-cheat-sheet

4. spring boot 项目demo