如何将代码 thymeleaf 放入外部 javascript 文件中？
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How to put code thymeleaf in an external javascript file?
提问by Premier
I have an external javascript file which is declared in my html file with the following tag:
我有一个外部 javascript 文件，它在我的 html 文件中使用以下标签声明：
<script type="text/javascript" th:inline="javascript" th:src="@{/js/gp-aprobarDocumento.js}"></script>
and in gp-aprobarDocumento.jsthe code shown below:
并在gp-aprobarDocumento.js下面显示的代码中：
ventanaAprobacion = function(td)
{
/*<![CDATA[*/
idEntregable = $(td).attr("data-row-id");
idVersion = $(td).attr("data-row-version");
alert("la siguiente viene con el texto dle properties");
alert(/*[[${link.menu.page-certificacion-qa-bandeja-entrada}]]*/);
$(function() {
$("#dialog-aprobar-documento").dialog("open");
});
/*]]>*/
}
Thus when executed the function the window alert is shown empty.
因此，当执行该功能时，窗口警报显示为空。
Does somebody know how to put thymeleaf expression in a external javascript?
有人知道如何将 thymeleaf 表达式放入外部 javascript 中吗？
回答by Manu Zi
I think what you want to do it's not possible, I have a similar question (here:How do you access a model attribute with javascript variable)
我认为你想做什么是不可能的，我有一个类似的问题（这里：你如何使用 javascript 变量访问模型属性）
but in your case you can do something like the this:
但在您的情况下，您可以执行以下操作：
in html:
在 html 中：
<script type="text/javascript" th:inline="javascript" >
var alertVariable = ${link.menu.page-certificacion-qa-bandeja-entrada};
</script>
and in the javascript the following:
并在 javascript 中：
ventanaAprobacion = function(td)
{
...
alert(alertVariable);
...
}
I know that's not really what you want but I have the same problem and I don't think there is any solution.
我知道这不是你真正想要的，但我有同样的问题，我认为没有任何解决方案。
回答by Pat
Via DOM:
通过 DOM：
https://datatables.net/examples/data_sources/js_array.html
https://datatables.net/examples/data_sources/js_array.html
If you're looking to create a JS variable from a Thymeleaf object you can add said object to the DOM. I recently did a project where I returned query results to a Java object of type List<> and added that object to the DOM through my Spring Controller.
如果您想从 Thymeleaf 对象创建一个 JS 变量，您可以将所述对象添加到 DOM。我最近做了一个项目，我将查询结果返回到 List<> 类型的 Java 对象，并通过 Spring Controller 将该对象添加到 DOM。
//Deliver Results Array to the DOM
model.addAttribute("myResult", myResult);
After this object is added to your Thymleaf template model you can access it in your HTML as
将此对象添加到您的 Thymleaf 模板模型后，您可以在 HTML 中访问它
th:text="${myResult}"
You can also reference it in your Javascript by simply referencing the name of the model object from the DOM. I haven't been able to get the variable to populate in the seperate JS file without making it global in scope from the HTML file with:
您还可以通过简单地从 DOM 中引用模型对象的名称，在您的 Javascript 中引用它。我无法让变量填充到单独的 JS 文件中，而没有使其在 HTML 文件中的全局范围内使用：
<script th:inline="javascript">
var myResult = [[${myResult}]];
</script>
My JS file looks like this
我的 JS 文件看起来像这样
$(function(){
//Get Thymeleaf DOM Object
console.log(myResult);
});
Th object in question must be reference-able from within the DOM. You may have better performance with AJAX and creating a controller that returns the data to the client over HTTP. Seems like thymeleaf 3 has other solutions as well : https://github.com/thymeleaf/thymeleaf/issues/395
所讨论的对象必须是可从 DOM 中引用的。使用 AJAX 并创建一个通过 HTTP 将数据返回给客户端的控制器，您可能会获得更好的性能。似乎 thymeleaf 3 也有其他解决方案：https: //github.com/thymeleaf/thymeleaf/issues/395
Hope this helps!
希望这可以帮助！
回答by jpllosa
This worked for me. In my index.html:
这对我有用。在我的index.html：
<script th:inline="javascript">
/* variable used by index.js */
var referenceId = [[${referenceId}]];
</script>
<script type="text/javascript" th:src="@{/js/index.js}">
</script>
then in my index.js:
然后在我的index.js：
function doSomething() {
$.ajax({
type: 'GET',
url: '/api/' + referenceId ,
contentType: 'application/json',
beforeSend: beforeSend
})
}
Hope this helps.
希望这可以帮助。
