配置maven项目使用如下依赖：

<dependency>
      <groupId>javax.servlet.jsp.jstl</groupId>
      <artifactId>javax.servlet.jsp.jstl-api</artifactId>
      <version>1.2</version>
</dependency>
<dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
 </dependency>

页面异常：
javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/LoopTag
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
manegement.filter.EncodingFilter.doFilter(EncodingFilter.java:25)
Root Cause
尝试更换jstl依赖：

<dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>

恢复正常