http://www.blogjava.net/coldtear/archive/2006/08/03/61454
上面那个博客中， 专业安装，第三大条的，第六小条 ：
6、 修改 TOMCAT/bin 目录下 catalina.bat 文件，增加下面内容：
rem ----- Execute The Requested Command ---------------------------------------
set JAVA_OPTS=-Xms128m -Xmx512m -Dfile.encoding=UTF8 -Duser.timezone=GMT+08 -Djava.security.auth.login.config=%CATALINA_HOME%/conf/jaas.config
关键是添加在哪儿？我把那个catalina.bat的文件内容也发出了，各帮看下
@echo off
if "%OS%" == "Windows_NT" setlocal
rem ---------------------------------------------------------------------------
rem Start/Stop Script for the CATALINA Server
rem
rem Environment Variable Prequisites
rem
rem CATALINA_HOME May point at your Catalina "build" directory.
rem
rem CATALINA_BASE (Optional) Base directory for resolving dynamic portions
rem of a Catalina installation. If not present, resolves to
rem the same directory that CATALINA_HOME points to.
rem
rem CATALINA_OPTS (Optional) Java runtime options used when the "start",
rem "stop", or "run" command is executed.
rem
rem CATALINA_TMPDIR (Optional) Directory path location of temporary directory
rem the JVM should use (java.io.tmpdir). Defaults to
rem %CATALINA_BASE%\temp.
rem
rem JAVA_HOME Must point at your Java Development Kit installation.
rem Required to run the with the "debug" argument.
rem
rem JRE_HOME Must point at your Java Development Kit installation.
rem Defaults to JAVA_HOME if empty.
rem
rem JAVA_OPTS (Optional) Java runtime options used when the "start",
rem "stop", or "run" command is executed.
rem
rem JSSE_HOME (Optional) May point at your Java Secure Sockets Extension
rem (JSSE) installation, whose JAR files will be added to the
rem system class path used to start Tomcat.