tomcat啓動時catalina.out裏一直報錯，大概是error starting endpoint
Failed to load keystore type PKCS12 with path server.p12 due to failed to decrypt safe contents entry: javax.crypto.BadPaddingException: Given final block not properly padded
網上搜了半天，發現一般都是證書的問題，重新導一遍即可。
/usr/bin/openssl pkcs12 -export -clcerts -in /etc/open***/$backupip.cer -inkey /etc/open***/$backupip.key -out /etc/ssl/private/client/$backupip.p12 -name "$backupip" -password pass:changeit
如果報port already used就簡單了，一定是server.xml裏配置的端口被佔用了，把佔用的程序殺掉後重啓tomcat既可。