无法使用路径环境（Windows XP）全局执行YUIcompressor！

Question

I typed D:\\yuicompressor-2.42\\build in Path and save it (Windows XP). But when I tried executing it the command line displayed: unable to access jarfile. The same message that appear when I type an incorrect directory.

I tried executing the file in this way:

D:\wamp\www\projects\alexchen\alexchen 0.1\scripts>java -jar yuicompressor-2.4.2.jar custom.js -o custom.min.js

according to this

I tried calling the file directly and it works:

D:\wamp\www\projects\alexchen\alexchen 0.1\scripts>java -jar D:\yuicompressor-2.4.2\build\yuicompressor-2.4.2.jar custom.js -o custom.min.js

Answer 1

Probably you've misread the docs:

It's simple to use, as shown in the following example. Replace /path/to with the actual path to the YUI Compressor, yuicompressor-2.4.2.jar with the actual version you are using, common.js with your input filename and common.min.js with the name you want the output file to be:

java -jar /path/to/yuicompressor-2.4.2.jar common.js -o common.min.js

This means that you should specify full path to your jar file, not to put it in the Path env variable.

Answer 2

Of course you can create an enviroment variable that contains the absolute path to your yuicompressor-xyzjar and even include the filename! This then could act as a placeholder or text-expander-like-makro.

So if, for example, your variable was named "yuicompressor" you could call this one instead of always having to enter the full path over and over again.

java -jar %yuicompressor% myFile.js -o myFile.min.js --charset utf-8

Answer 3

为了使用java -jar执行JAR文件，您需要指定JAR文件的完整路径。

Answer 4

java -cp "<path to jar file dir>" -jar "<jarfilename>" args