windows系統Tomcat啟動過程中找不到JAVA_HOME解決方法

在winserver上明明已經安裝了JDK1.6并設定好了JAVA_HOME，可偏偏Tomcat在啟動過程中找不到。

報錯資訊如下：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路徑，何解？

原因不知道了，下面來看解決辦法：

1、分析startup.bat啟動腳本：發現其調用了catalina.bat,而catalina.bat調用了setclasspath.bat

2、在setclasspath.bat的頭部定義了JAVA_HOME和JRE_HOME的值，那麼在這裡手動設定JAVA_HOME變量

@echo off

rem Licensed to the Apache Software Foundation (ASF) under one or more

rem contributor license agreements.  See the NOTICE file distributed with

rem this work for additional information regarding copyright ownership.

rem The ASF licenses this file to You under the Apache License, Version 2.0

rem (the "License"); you may not use this file except in compliance with

rem the License.  You may obtain a copy of the License at

rem

rem     http://www.apache.org/licenses/LICENSE-2.0

rem Unless required by applicable law or agreed to in writing, software

rem distributed under the License is distributed on an "AS IS" BASIS,

rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

rem See the License for the specific language governing permissions and

rem limitations under the License.

rem ---------------------------------------------------------------------------

rem Set JAVA_HOME or JRE_HOME if not already set, ensure any provided settings

rem are valid and consistent with the selected start-up options and set up the

rem endorsed directory.

rem $Id: setclasspath.bat 1202062 2011-11-15 06:50:02Z mturk $

##注意這裡添加的路徑要使用自己安裝的java路徑

set JAVA_HOME=C:\Program Files (x86)\Java\jdk1.6.0_10   

set JRE_HOME=C:\Program Files (x86)\Java\jdk1.6.0_10

rem Make sure prerequisite environment variables are set

rem In debug mode we need a real JDK (JAVA_HOME)

if ""%1"" == ""debug"" goto needJavaHome

rem Otherwise either JRE or JDK are fine

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

if not "%JAVA_HOME%" == "" goto gotJavaHome

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

............  中間省略

goto end

:exit

exit /b 1

:end

exit /b 0

3、重新開機tomcat，敲入

http://localhost:8080

驗證，問題解決。