linux 解决tomcat接收日期参数不准确问题，以及实现tomcat jvm调优

JAVA_OPTS="-server  -Duser.timezone=GMT+08  -Xms8192M -Xmx8192M -XX:NewRatio=4 -XX:SurvivorRatio=8 -XX:+UseConcMarkSweepGC -XX:ParallelGCThreads=8 -XX:+HeapDumponOutOfMemoryError -XX:HeapDumpPath=/usr/local/javamemorylogs/dump -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:/usr/local/software/tomcat/apache-tomcat-9.0.54/logs/gc.log -XX:+DisableExplicitGC"

具体参数不做解释，想了解自己查阅官方api