No tag [else] defined in tag library imported with prefix [c]] with root cause

简介: No tag [else] defined in tag library imported with prefix [c]] with root cause 错误处理

错误提示:

严重: Servlet.service() for servlet [dispatcher] in context with path [/memory] threw exception [/WEB-INF/user/myimages.jsp (line: [49], column: [35]) No tag [else] defined in tag library imported with prefix [c]] with root cause

意为else标签没有在引入的标签库中定义。
引入标签URI为:

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

该标签库中可使用的标签为:
20190425163242135.png

故使用

<c:choose>
    <c:when></c:when>
    <c:otherwise></c:otherwise>
</c:choose>
AI 代码解读

代替,其中标签可以多次使用。

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