Questions are as follows:
Configuration under lib package
The import of the jsp page is normal without any errors
I also checked a lot of results on the Internet, and finally found that the conf/catalina.properties file in tomcat was modified,
tomcat.util.scan.DefaultJarScanner.jarsToSkip=*.jar
To:
tomcat.util.scan.DefaultJarScanner.jarsToSkip=/
It can be used normally.
There is another question again. After the modification, the tomcat will display
信息: 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。There is no impact in current use, I don't know what this prompt is for.