${pageContext.request.contextPath} 取不到值，就得到一个斜杠：/

Question

EL表达式在jsp页面取不到值是什么原因？

${pageContext.request.contextPath}   就得到一个斜杠：/

前几天还是好的，可以取到资源名称，昨天就不行了

Answer 1

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

Answer 2

是否修改了tomcat的配置文件