如何解决Maven错误JAVA_HOME环境变量未正确定义? [英] How do I fix maven error The JAVA_HOME environment variable is not defined correctly?

问题描述

问题:

当我通过Inno安装程序批量执行运行时，出现Maven错误"JAVA_HOME环境变量未正确定义".但是，我可以在Inno Setup之外成功运行(例如，命令行，批处理文件，Vbs).我不知道这个问题.

I am getting the Maven error "The JAVA_HOME environment variable is not defined correctly" when I run through Inno setup batch execution. However, I am able to run successfully outside Inno Setup.(e.g Command line, Batch file, Vbs). I am clueless to identify the issue.

Inno Setup调用提示:

C:\>mvn -version
The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE

常规命令提示符:

C:\>mvn -version
C:\
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-04T01:09:06+05:30)
Maven home: C:\Program Files\apache-maven-3.5.0\bin\..
Java version: 1.8.0_131, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.8.0_131\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"

InnoSetup中的Maven命令:

[Files]
Source: "C:\@Setup\MavenInstaller.bat"; DestDir: "{tmp}"; Flags: ignoreversion
[Run]
Filename: "{cmd}"; Parameters: "/C ""{tmp}\MavenInstaller.bat"""

批处理文件中的Maven命令:

mvn archetype:generate -DgroupId=com.mycompany.mycomponent-DartifactId=%APPLICATION_NAME% -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

设置JAVA_HOME

检查是否已安装Java 1.8.如果未安装，请安装相同的组件，然后按如下所示设置JAVA HOME.

Check the If Java 1.8 is installed or not. If not installed, Install the same and set the JAVA HOME as follows.

SETX JAVA_HOME "C:\Program Files\Java\jdk1.8.0_131"
SETX -m JAVA_HOME "C:\Program Files\Java\jdk1.8.0_131"
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v Path /t REG_SZ /d "%path%;C:\Program Files\Java\jdk1.8.0_131\bin;" /f

非常感谢.

推荐答案

SETX命令不会修改当前环境.

The SETX command does not modify the current environment.

如果运行以下批处理文件:

If you run the following batch file:

setx AAA aaa
echo AAA=%AAA%

它将打印

AAA=

因此您的批处理文件是错误的.您必须使用set:

So your batch file is wrong. You have to use set:

set AAA=aaa

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请参见 SETX和SET在Windows环境变量中有什么区别.

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