Javascript - 在 JSP 中定义变量

Question

我有一个基于 Spring Web 模型- View - Controller (MVC) 框架的项目。 Spring Web模型- View - Controller (MVC)框架的版本是3.2.8，部署在WebLogic Server上版本:12.1.2.0.0 我的 JSP 中有这段代码

<script src="${contextPath}/scripts/jquery.min.js"  type="text/javascript">

var optionsEUCountriesArray = [];
var optionsNonEUCountriesArray = [];

<c:forEach items="${countries}" var="country" varStatus="status">
    var option${country.id} = new Option("${country.id}","${country.description}");
    <c:choose>
    <c:when test="${country.euMember}">
        optionsArray.push(option${country.id});  
    </c:when>
    <c:when test="${not country.euMember}">
        optionsArray.push(option${country.id});
    </c:when>       
    </c:choose>
</c:forEach>
</script>

<script src="${contextPath}/scripts/selectbox.js"   type="text/javascript"></script>

在 selectbox.js 中，我使用变量 optionsEUCountriesArray ，但出现此错误

Uncaught ReferenceError: optionsEUCountriesArray is not defined

Answer 1

您正在组合脚本。也许这应该可以解决您的问题..

 <script src="${contextPath}/scripts/jquery.min.js"  type="text/javascript"> </script>
<script>

var optionsEUCountriesArray = [];
var optionsNonEUCountriesArray = [];
<c:forEach items="${countries}" var="country" varStatus="status">
    var option${country.id} = new Option("${country.id}","${country.description}");
    <c:choose>
    <c:when test="${country.euMember}">
        optionsArray.push(option${country.id});  
    </c:when>
    <c:when test="${not country.euMember}">
        optionsArray.push(option${country.id});
    </c:when>       
    </c:choose>
</c:forEach>
</script>