Java 在 thymeleaf 中为变量名称设置值
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setting up a value for a variable name in thymeleaf
提问by Deepak Ramakrishnan Kalidass
I am new to Thymeleaf and converting my Web page from JSP to Thymeleaf. I have a strut tag like this:
我是 Thymeleaf 的新手，正在将我的网页从 JSP 转换为 Thymeleaf。我有一个像这样的支柱标签：
<c:set var="someVariable" value="${someValue}"/>
That variable can be used anywhere in JSP. Is there any such alternatives for this in Thymeleaf?
该变量可以在 JSP 中的任何地方使用。在 Thymeleaf 中是否有这样的替代方案？
采纳答案by Sotirios Delimanolis
You can use local variables.
您可以使用局部变量。
Declare an HTML element with a th:withattribute. For example
声明一个带有th:with属性的 HTML 元素。例如
<div th:with="someVariable=${someValue}">
The documentation states
该文件指出
When
th:withis processed, that[someVariable]variable is created as a local variable and added to the variables map coming from the context, so that it is as available for evaluation as any other variables declared in the context from the beginning, but only within the bounds of the containing tag.
当
th:with被处理时，该[someVariable]变量被创建为局部变量并添加到来自上下文的变量映射中，以便它与从一开始就在上下文中声明的任何其他变量一样可用于评估，但仅限于包含标签。
回答by Alexandre Roger
Just a note, if you wish to assign more than one variable, separate them with a comma :
请注意，如果您希望分配多个变量，请用逗号分隔它们：
<div th:with="someVariable=${someValue},anotherVariable=${anotherValue}">
See the third example : Local Variable section of Thymeleaf documentation
参见第三个例子：Thymeleaf 文档的局部变量部分
回答by Vinci Da
declare with
th:with="varName=${'str'}ref with in src
th:src="@{${varName}}"in more detail:
声明
th:with="varName=${'str'}在 src 中引用
th:src="@{${varName}}"更详细地：
<head th:with="component =${'/static/component'}, bizJs = ${'/static/js/biz'}">
<span th:text="${component}"></span>
<script th:src="@{(${component})}"></script>
<script th:src="@{${bizJs} + '/static/js'}"></script>
</head>