Detailed introduction to using EL expressions in JS

There are two situations: 1. The JS code is in the JSP page, which can directly use ELexpression. 2. The JS code is a separate .js file, which is introduced into the JSP. At this time, it can be solved by defining JS variables in advance

1. The JS code is in the JSP page , this can directly use EL expressions. For example:

[html] view plain copy
<script type="text/javascript">  
    $(function () {  
        new BacklogOverview("${param.alert}");  
    });  
</script>

2. The JS code is a separate .js file, which is introduced into the JSP. At this time, it can be solved by defining JS variables in advance, such as :

[html] view plain copy
<c:set var="contextPath" value="${pageContext.request.contextPath}" scope="application"/>  
   <script>  
        <%--JS gloable varilible--%>  
        var contextPath = "${contextPath}";  
    </script>

Define the JS variable contextPath on the JSP page.

So that the contextPath variable can be used in the JS files introduced later.

[html] view plain copy
//Image setting  
config.filebrowserImageUploadUrl = contextPath + "/ckeditor/upload.htm";

The above is I compiled the JS using EL expressions for everyone. I hope it will be helpful to everyone in the future.

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