如何运行从不同的目录中的Java程序？ [英] How do I run a java program from a different directory?

问题描述

我有一个Java程序，我希望能够从任何地方我的机器上运行。我想从我的Cygwin的命令提示符下运行它。我做了脚本调用java程序。我加入了Java程序的位置到类路径中，当我从java程序的目录中运行它们的脚本。然而，当我试图从其他目录下运行，我得到：

I have a java program that I would like to be able to run from anywhere on my machine. I would like to run it from my Cygwin command prompt. I've made scripts to call the java program. I added the location of the java program to the classpath, and the scripts work when I run them from the java program's directory. However, when I try to run from any other directory, I get:

java.lang.NoClassDefFoundError: commandprogram/CommandProgram

这是我的脚本：

#!/bin/sh
CWD=`dirname "$0"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram

修改Java线以下内容：

Changing the java line to the following:

java -cp "$CWD/classes;$CWD/classes/commandprogram;$CWD/lib/AJarFile.jar" CommandProgram

产生相同的结果。

produces the same results.

推荐答案

只是想一切我能想到的，我附和了命令，并看到有混合的Cygwin的路径和Windows路径。解决的办法是改变脚本：

After trying just about everything I could think of, I echoed out the command and saw that there was mixing of Cygwin paths and Windows paths. The solution was to change the script to:

#!/bin/sh
CWD=`dirname "$0"`
CWD=`cygpath -w "$CWD"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram

然后CWD更改为C：\\ Program Files文件\\ ...而不是/ cygdrive / C /程序\\文件/...\"

Then CWD changed to "C:\Program Files\..." instead of "/cygdrive/c/Program\ Files/..."

我有previously遇到了这个问题，并与 cygpath -w 解决方案解决了这个问题，但后来改变了我的剧本略并没有注意到路径问题回来了。

I had previously encountered this problem and solved it with the cygpath -w solution, but then changed my script slightly and didn't notice that the path problem came back.

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