#!/bin/bash

if [[ $(which ${JAVA_HOME}/bin/java) ]]; then
    exe="${JAVA_HOME}/bin/java"
elif [[ $(which java) ]]; then
    exe="java"
else 
    echo "Java environment is not detected."
    exit 1
fi

${exe} -version

windows:

@echo off
if "%JAVA_HOME%" == "" goto nojavahome

echo Using JAVA_HOME            :   %JAVA_HOME%

"%JAVA_HOME%/bin/java.exe" -version
goto exit

:nojavahome
echo The JAVA_HOME environment variable is not defined correctly
echo This environment variable is needed to run this program.
goto exit

:exit

这个链接可能有助于解释如何从bash中找到java可执行文件:http://srcode.org/2014/05/07/detect-java-executable/

Powershell一内衬:

$p='HKLM:\SOFTWARE\JavaSoft\Java Development Kit'; $v=(gp $p).CurrentVersion; (gp $p/$v).JavaHome

在Windows下，您可以使用

C:>dir /b /s java.exe

打印C:驱动器上每个“java.exe”的完整路径，而不管它们是否在path环境变量中。

#!/bin/bash

if [[ $(which ${JAVA_HOME}/bin/java) ]]; then
    exe="${JAVA_HOME}/bin/java"
elif [[ $(which java) ]]; then
    exe="java"
else 
    echo "Java environment is not detected."
    exit 1
fi

${exe} -version

windows:

@echo off
if "%JAVA_HOME%" == "" goto nojavahome

echo Using JAVA_HOME            :   %JAVA_HOME%

"%JAVA_HOME%/bin/java.exe" -version
goto exit

:nojavahome
echo The JAVA_HOME environment variable is not defined correctly
echo This environment variable is needed to run this program.
goto exit

:exit

这个链接可能有助于解释如何从bash中找到java可执行文件:http://srcode.org/2014/05/07/detect-java-executable/

也许上面的方法有用…我试了一些，但不是为了我自己。事情是这样的:

在终端中运行:

/usr/libexec/java_home

您是否尝试查看您的%PATH%变量。这就是Windows用来查找任何可执行文件的方法。