At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs d

今天tomcat下启动web项目，项目启动很慢，但是启动中没有报错，访问页面的时候让我想起一首歌“爱的魔力转圈圈....”，好不容易不转了，验证码一直刷不出来

发现项目启动完的时候，日志中有一段提示：At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs d

于是百度，首先试了这个博主的方法

https://blog.csdn.net/sinat_34104446/article/details/82721250

结果不行 ，还是刷不出验证码

后来试了这个https://blog.csdn.net/y1324997149/article/details/78086886

即在tomcat里面的catalina.sh文件中，增加以下语句 -Djava.awt.headless=true 

问题解决