在启动tomcat中的startup.bat时，总是报以下错误

the java_home environment variable is not defined correctly

This environment variable is needed to run this program

NB: java_home should point to a jdk not a jre

环境变量的路径没有问题，把jdk重装了，还是一样

设置环境变量：

右击我的电脑-->属性-->高级-->环境变量-->找到JAVA_HOME变量，把路径指向jdk的安装目录，如：

变量名：JAVA_HOME

变量值：C:\Program Files\Java\jdk1.6.0_02;

变量名：Path

变量值：C:\Program Files\Java\jdk1.6.0_02\bin;

修改完变量路径之后，若还报之前那个错误，那么再试试下面这个方法：

下面来看解决办法：

加入红字那两个语句(后面是你电脑安装jdk的路径)

1、分析startup.bat启动脚本：发现其调用了catalina.bat,而catalina.bat调用了setclasspath.bat

2、在setclasspath.bat的头部定义了JAVA_HOME和JRE_HOME的值，那么在这里手动设置JAVA_HOME变量

rem

---------------------------------------------------------------------------

rem Set CLASSPATH and Java options

rem

rem $Id: setclasspath.bat 505241 2007-02-09 10:22:58Z jfclere

$

rem

---------------------------------------------------------------------------

set JAVA_HOME=C:\Program

Files\Java\jdk1.5.0_05

set JRE_HOME=C:\Program Files\Java\jre1.5.0_05

rem Make sure prerequisite environment variables are set

if not "%JAVA_HOME%" == "" goto gotJdkHome

if not "%JRE_HOME%" == "" goto gotJreHome

echo Neither the JAVA_HOME nor the JRE_HOME environment variable is

defined

echo At least one of these environment variable is needed to run

this program

goto exit

:gotJreHome

if not exist "%JRE_HOME%\bin\java.exe" goto noJavaHome

if not exist "%JRE_HOME%\bin\javaw.exe" goto noJavaHome

if not ""%1"" == ""debug"" goto okJavaHome

echo JAVA_HOME should point to a JDK in order to run in debug

mode.

goto exit

:gotJdkHome

if not exist "%JAVA_HOME%\bin\java.exe" goto noJavaHome

if not exist "%JAVA_HOME%\bin\javaw.exe" goto noJavaHome

if not exist "%JAVA_HOME%\bin\jdb.exe" goto noJavaHome

if not exist "%JAVA_HOME%\bin\javac.exe" goto noJavaHome

if not "%JRE_HOME%" == "" goto okJavaHome

set JRE_HOME=%JAVA_HOME%

goto okJavaHome

:noJavaHome

echo The JAVA_HOME environment variable is not defined

correctly

echo This environment variable is needed to run this program

echo NB: JAVA_HOME should point to a JDK not a JRE

goto exit

:okJavaHome

if not "�SEDIR%" == "" goto gotBasedir

echo The BASEDIR environment variable is not defined

echo This environment variable is needed to run this program

goto exit

:gotBasedir

if exist "�SEDIR%\bin\setclasspath.bat" goto okBasedir

echo The BASEDIR environment variable is not defined

correctly

echo This environment variable is needed to run this program

goto exit

:okBasedir

rem Set the default -Djava.endorsed.dirs argument

set JAVA_ENDORSED_DIRS=�SEDIR%\endorsed

rem Set standard CLASSPATH

rem Note that there are no quotes as we do not want to introduce

random

rem quotes into the CLASSPATH

if not exist "%JAVA_HOME%\bin\tools.jar" goto noJavac

set CLASSPATH=%JAVA_HOME%\lib\tools.jar

:noJavac

rem Set standard command for invoking Java.

rem Note that NT requires a window name argument when using

start.

rem Also note the quoting as JAVA_HOME may contain spaces.

set _RUNJAVA="%JRE_HOME%\bin\java"

set _RUNJAVAW="%JRE_HOME%\bin\javaw"

set _RUNJDB="%JAVA_HOME%\bin\jdb"

set _RUNJAVAC="%JAVA_HOME%\bin\javac"

goto end

:exit

exit /b 1

:end

3、重启tomcat，敲入http://localhost:8080验证，问题解决。

特别注意：还有一个可能：

JAVA_HOME路径结尾不能附加分号