tomcat8 tomcat9 解决"At least one JAR was scanned for TLDs yet contained no TLDs"耗时过长的问题

修改conf\context.xml文件，添加JarScanner

<Context>
    <!-- 如果不需要使用jsp的标签 -->
    <JarScanner>
        <JarScanFilter defaultPluggabilityScan="false" defaultTldScan="false"/>
    </JarScanner>
</Context>