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Tomcat啟動時間很久

啟動Tomcat時需要時間很長,且報錯:

INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [12,367] milliseconds. 

或者:

[localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory xxx

有可能是JRE的一個Bug引起的,改一下JRE的 java.security

位置/jre/lib/security/java.security
securerandom.source=file:/dev/urandom替換成securerandom.source=file:/dev/./urandom