关于tomcat startup.bat启动一闪而退
rem ---------------------------------------??//rem 是注释（下同）?
rem Start script for the CATALINA Server?
rem?
rem $Id: startup.bat 302918 2004-05-27 18:25:11Z yoavs $?
rem ---------------------------------------?
rem Guess CATALINA_HOME if not defined?
set CURRENT_DIR=%cd%??????????//设置当前目录?
if not "%CATALINA_HOME%" == "" goto gotHome //如果设置了CATALINA_HOME环境变量 ，就直接到下面的gotHome处?
set CATALINA_HOME=%CURRENT_DIR% //如果没有设置CATALINA_HOME，就设置CATALINA_HOME为当前目录（其实这里她假设你进入tomcat的安装目录）?
if exist "%CATALINA_HOME%\bin\catalina.bat" goto okHome//判断一下catalina.bat是否找到了，找到了就直接到下面的gotHome处?
cd .. //这里他是假设你开始已经进入到了tomcat的bin目录，所以就退到上一级目录?
set CATALINA_HOME=%cd%//现在再设置CATALINA_HOME为tomcat的安装目录?
cd %CURRENT_DIR% //这里是进入dos的当前目录?
:gotHome?
if exist "%CATALINA_HOME%\bin\catalina.bat" goto okHome??//再次判断catalina.bat是否找到了，找到了就直接到下面的okHome处，没有的话，就只能提示你啦！?
echo The CATALINA_HOME environment variable is not defined correctly?
echo This environment variable is needed to run this program?
goto end?
:okHome?
set EXECUTABLE=%CATALINA_HOME%\bin\catalina.bat??//设置要执行的文件?
rem Check that target executable exists?
if exist "%EXECUTABLE%" goto okExec //再次判断catalina.bat是否找到了，找到了就直接到下面的okExec处，没有的话，就提示。?
echo Cannot find %EXECUTABLE%?
echo This file is needed to run this program?
goto end?
:okExec?
rem Get remaining unshifted command line arguments and save them in the?
set CMD_LINE_ARGS= //这里是设置参数?
:setArgs?
if ""%1""=="""" goto doneSetArgs //判断参数是否加入完成?
set CMD_LINE_ARGS=%CMD_LINE_ARGS% %1 //将参数组成一行，接在后面?
shift?
goto setArgs?
:doneSetArgs?
call "%EXECUTABLE%" start %CMD_LINE_ARGS% //执行catalina.bat，最好将这行改为:echo "%EXECUTABLE%" start %CMD_LINE_ARGS%?????? 以便阅读、理解本文件的作用
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一直以来我的tomcat都可以在eclipse中启动，但是直接启动就不行，在cmd中显示找不到catalina_home，但是我明明设置了，今天正好有
空，找找原因，看到上面转帖中的startup.bat中的代码解释，终于发现 原来我在设置catalina_home的时候在最后加了“；”符号，导致路径
不对，把符号去掉，从新启动tomcat，OK。
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