JetBrain IntelliJ IDEA如何选择Java启动 [英] How JetBrain IntelliJ IDEA select Java to bootup

问题描述

我已经在我的Window 7上安装了Java 8 EA，但它既不在我的％JAVA_HOME％中，也不在％PATH％。但是，当我通过单击 idea64.exe 启动IntelliJ IDEA v12时，它选择了java 8 EA而不是我的Java SDK 1.6.0_32，它位于<$ c $中c>％JAVA_HOME％和％PATH％。

I have install Java 8 EA on my Window 7, but it's neither in my %JAVA_HOME% nor in the %PATH%. However when I start my IntelliJ IDEA v12 by clicking idea64.exe, it picked up java 8 EA instead of my Java SDK 1.6.0_32, which is in the %JAVA_HOME% and %PATH%.

任何人都知道IDEA什么时候开始，它如何决定运行哪个Java版本？

Anyone know when IDEA started, how it decide which Java version to run?

推荐答案

它是从注册表中选取的。

It was picked from the registry.

从.exe启动时，IDEA按以下顺序查找Java：

When launched from .exe IDEA looks for Java in a following order:

1. IDEA_JDK（或IDEA_JDK_64）环境变量


2. jre /（或jre64 /）目录在IDEA主页


3. 注册表


4. JDK_HOME环境变量


5. JAVA_HOME环境变量

1. IDEA_JDK (or IDEA_JDK_64) environment variable
2. jre/ (or jre64/) directory in IDEA home
3. registry
4. JDK_HOME environment variable
5. JAVA_HOME environment variable

从.bat启动时，订单是相同的但是没有查看注册表，并且没有使用64个后缀的vars（可能是一个bug）。

When launched from .bat the order is same but registry isn't looked, and 64-suffixed vars aren't used (what is probably a bug).

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