zookeeper报错 JAVA_HOME is not set

自己在安装zookeeper的时候发现到这么一个问题： JAVA_HOME is not set
原因在于zookeeper需要JAVA的环境

电脑如果没有安装JAVA环境的话，可以去官网下载jdk安装，同时在系统的环境变量中设置。变量值填的是自己的安装目录
电脑安装了JAVA环境如果还报这种错误的话，可以将zookeeper目录下 /bin/zkEnv.cmd 以记事本方式打开

@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
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.
 
set ZOOCFGDIR=%~dp0%..\conf
set ZOO_LOG_DIR=%~dp0%..
set ZOO_LOG4J_PROP=INFO,CONSOLE
 
REM for sanity sake assume Java 1.6
REM see: http://java.sun.com/javase/6/docs/technotes/tools/windows/java.html
 
REM add the zoocfg dir to classpath
set CLASSPATH=%ZOOCFGDIR%
 
REM make it work in the release
SET CLASSPATH=%~dp0..\*;%~dp0..\lib\*;%CLASSPATH%
 
REM make it work for developers
SET CLASSPATH=%~dp0..\build\classes;%~dp0..\build\lib\*;%CLASSPATH%
 
set ZOOCFG=%ZOOCFGDIR%\zoo.cfg
 
@REM setup java environment variables
 
if not defined JAVA_HOME (
  echo Error: JAVA_HOME is not set.
  goto :eof
)
 
set JAVA_HOME=%JAVA_HOME:"=%
 
if not exist "%JAVA_HOME%"\bin\java.exe (
  echo Error: JAVA_HOME is incorrectly set.
  goto :eof
)
 
set JAVA="%JAVA_HOME%"\bin\java