Ant Build 无法识别 JAVA_HOME [英] Ant Build not able to recognize JAVA_HOME

问题描述

我在使用 ANT 进行构建时遇到以下错误:

I am getting following error while doing build using ANT:

rem bug ID 32069: resetting an undefined env variable changes the errorlevel.
if not "C:\Program Files (x86)\Java\jdk1.6.0_30\bin\java.exe" == "" set _JAVACMD=
if not "" == "" set ANT_CMD_LINE_ARGS=

我知道 ANT 无法指向 JDK.我正在通过 .bat 文件开始 ANT 构建，并在那里指定以下内容

I understand that ANT is not able to point to JDK. I am starting ANT build via .bat file and there I am specifying following

set JAVA_HOME=C:\Program Files (x86)\Java\jdk1.6.0_30
set ANT_HOME=C:\Softwares\apache-ant-1.8.4

如果在 JAVA_HOME 值中添加双引号，则会出现以下错误:

If add double quotes to JAVA_HOME value, I get following error:

if exist "C:\Softwares\apache-ant-1.8.4\lib\ant.jar" goto checkJava

set _JAVACMD=
Files was unexpected at this time.
if ""C:\Program Files (x86)\Java\jdk1.6.0_30"" == "" goto noJavaHome

令人困惑的部分是，如果我将 ANT_HOME 更改为以前的版本 (1.6)，它可以正常工作.

Confusing part is if I change ANT_HOME to a previous version (1.6) it works fine.

set ANT_HOME=C:\Softwares\Ant

推荐答案

这似乎与 64 位 Windows 上的 32 位 JDK 有关，但我不确定.

This seems to be related to the 32bit JDK on a 64 bit Windows but I'm not sure about that.

对我有用的是使用旧的 ~ 技巧，它显然仍然有效.所以在你的情况下它可能应该是:

What worked for me was using the old ~ trick which apparently still works. So in your case it should probably be:

set JAVA_HOME=C:\Progra~2\Java\jdk1.6.0_30
set PATH=C:\Progra~2\Java\jdk1.6.0_30\bin;%PATH%

注意 progra~2 在我的机器上映射到 x86 程序文件目录.你的可能会有所不同，所以你需要检查一下.

Notice that progra~2 maps on my machine to the x86 program files directory. Might be different on yours so you need to check that.

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