部署項目時候，發現啟動特別慢，要等好幾分鍾，這不正常啊。然后每次部署都停留在
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 during scanning can improve startup time and JSP compilation time.
之后又仔細看了下，下面還有一句
上google看了下，為何這個SecureRandom花費了這么長的時間，額 看這篇吧
http://blog.csdn.net/chszs/article/details/49494701
額，我是用的第二張方式，親測有效
修改jre的文件
/usr/local/jdk1.8.0_111/jre/lib/security/java.security
替換里面的這句話
