TOMCAT JAVA_HOME or JRE_HOME environment variable is not defined correctly

Java 一条评论

在XP上明明已经安装了JDK1.5并设置好了JAVA_HOME,可偏偏Tomcat在启动过程中找不到。

报错信息如下:Neither the JAVA_HOME nor the JRE_HOME environment variable is defined At least one of these environment variable is needed to run this program;提示找不到java_home各jre_home路径,何解?

原因不知道了,下面来看解决办法:

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_HOMEJRE_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。

tomcat5需要jdk1.6做支撑,jdk1.5不能够。

1条评论

a
amazm says: 回复

Finally, if a JRE or JDK has not been found, the installer will try to use the JAVA_HOME environment variable. It is not mandatory to use the default JRE detected by the installer. Any installed Java 8 or later JRE (32-bit or 64-bit) may be used.

管网文档说,只要配置其中一个即可启动,所以我只配置JAVA_HOME,出现猫咪了

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