java 错误：JAVA_HOME 设置为无效目录
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Error: JAVA_HOME is set to an invalid directory
提问by MrPencil
I am trying to get maven installation to work but I am always getting this error
我试图让 maven 安装工作，但我总是收到这个错误
C:\Windows\System32>mvn --version
Error: JAVA_HOME is set to an invalid directory.
JAVA_HOME = "C:\Program Files\Java\jdk1.7.0_51;"
Please set the JAVA_HOME variable in your environment to match the location of your Java installation.
C:\Windows\System32>mvn --version
错误：JAVA_HOME 设置为无效目录。
JAVA_HOME = "C:\Program Files\Java\jdk1.7.0_51;"
请在您的环境中设置 JAVA_HOME 变量以匹配您的 Java 安装位置。
I know that the error says every thing but I have tried everything here. I have the following setting:
我知道错误说明了一切，但我在这里尝试了一切。我有以下设置：
System Variables:
系统变量：
M2_HOME:C:\Program Files\Apache Software Foundation\apache-maven-3.3.3
M2_HOME：C:\Program Files\Apache Software Foundation\apache-maven-3.3.3
M2:%M2_HOME%\bin
M2：%M2_HOME%\bin
JAVA_HOME:C:\Program Files\Java\jdk1.7.0_51
JAVA_HOME:C:\Program Files\Java\jdk1.7.0_51
I added the whole path maybe it is interested someone. please take a look at the last part.
我添加了整个路径，也许有人感兴趣。请看最后一部分。
Path:
小路：
C:\Program Files\Java\jdk1.7.0_51\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\MiKTeX 2.9\miktex\bin\x64\;C:\Program Files\TortoiseSVN\bin;C:\Program Files (x86)\Heroku\bin;C:\Program Files (x86)\git\cmd;%M2%;%JAVA_HOME%\bin;
Path interested part:
路径感兴趣的部分：
%M2%;%JAVA_HOME%\bin;
I have tried it by deleting the %JAVA_HOME%\bin;too but it does not work since I have this path by the SDK installation at the start of the path C:\Program Files\Java\jdk1.7.0_51\bin
我也尝试过删除它，%JAVA_HOME%\bin;但它不起作用，因为我在路径开头的 SDK 安装中有这个路径 C:\Program Files\Java\jdk1.7.0_51\bin
I have tried to add the setting to the user variables and it does not work.
我试图将设置添加到用户变量中，但它不起作用。
回答by Jesper
JAVA_HOME = "C:\Program Files\Java\jdk1.7.0_51;"
JAVA_HOME = "C:\Program Files\Java\jdk1.7.0_51;"
Maven says that there is a semi-colon after the directory name in the JAVA_HOMEenvironment variable. Remove the semi-colon.
Maven 说JAVA_HOME环境变量中的目录名后面有一个分号。删除分号。
回答by TubusMan
you shoud have both maven and java home defined in the same System Variable ...
你应该在同一个系统变量中定义了 maven 和 java home ......
回答by Denis Kozlov
Try Rename M2_HOMEat MAVEN_HOMEAlso change M2: %MAVEN_HOME%\bin
尝试在MAVEN_HOME重命名M2_HOME同时更改M2: %MAVEN_HOME%\bin
回答by Ewerton
For me, the trick is to close and open another CMD window, to check if ir worked
对我来说，诀窍是关闭并打开另一个 CMD 窗口，以检查它们是否有效
