linux下tomcat无法启动报错

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×××××××××××××××××××××××××××××××××××××××××××××××××××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

××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

原因：找不到jdk或者jre路径。

解决办法：在setclasspath.bat的开头声明环境变量，打开tomcat的bin目录下面的setclasspath.sh，添加红色部分，路径修改为自己机器jdk和jre路径即可。

#!/bin/sh

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# -----------------------------------------------------------------------------
#  Set CLASSPATH and Java options
#
#  $Id: setclasspath.sh 795037 2009-07-17 10:52:16Z markt $
# -----------------------------------------------------------------------------

*************************************************加上下面的配置信息

export JAVA_HOME=/opt/zimbra/jdk1.6.0_31
export JRE_HOME=/opt/zimbra/jdk1.6.0_31/jre

这个根据你系统jdk的实际的安装路径配置

linux下tomcat无法启动报错

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原文地址：http://www.cnblogs.com/cxspace/p/5567230.html