tomcat在启动时特别耗时,报错如下:
Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [5,015] milliseconds.
原因和解决办法:
【1】https://blog.youkuaiyun.com/chszs/article/details/49494701
【2】http://hongjiang.info/jvm-random-and-entropy-source/