tomcat部署，设置jdk环境、jvm内存等

    tomcat的catalina.sh（卡特琳娜）文件中可以指定自定义一个环境文件：setenv.sh

原文：setenv.sh in CATALINA_BASE/bin to keep your customizations separate.

故此添加该文件到bin目录即可设置环境，保存为setenv.sh即可

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#!/bin/sh

export JAVA_HOME=/home/wangzhirui/jdk1.7.0

export JRE_HOME=$JAVA_HOME/jre

export classpath=.:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib/rt.jar

export LD_LIBRARY_PATH=$JAVA_HOME/native/lib:$LD_LIBRARY_PATH

export JAVA_OPTS=" \

   -server \

   -Xms512M \

   -Xmx512M \

   -Xss512k \

   -XX:PermSize=64M \

   -XX:MaxPermSize=300M \

   -XX:+AggressiveOpts \

   -XX:+UseBiasedLocking \

   -XX:+DisableExplicitGC \

   -XX:MaxTenuringThreshold=31 \

   -XX:+UseConcMarkSweepGC \

   -XX:+UseParNewGC \

   -XX:+CMSParallelRemarkEnabled \

   -XX:+UseCMSCompactAtFullCollection \

   -XX:LargePageSizeInBytes=128m \

   -XX:+UseFastAccessorMethods \

   -XX:+UseCMSInitiatingOccupancyOnly \

   -Djava.awt.headless=true"

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