在Java中设置环境变量。 [英] Set an environment Variable in Java.
问题描述
有一个获取环境变量的API,System.getEnv。
但是没有setEnv方法?
有没有问题要实现?
请解释???
Debasis Jana。
有一个获取环境变量的API,System.getEnv。
但是没有setEnv方法?
有没有有什么问题要实现吗?
请解释???
Debasis Jana。
你不需要它;如果你想要一个可变的环境,你可以建立自己的环境:
展开 | 选择 | Wrap | 行号
你不需要它;如果你想要一个可变的环境,你可以建立自己的环境:
展开 | 选择 | Wrap | 行号
感谢您的回复....!
但我怎么能让它持久?
我应该使用序列化吗?
还有一件事..为什么SUN没能设计System.setEnv?
我需要这个解释..请...
Debasis Jana
Sun在设计这种方法时并没有失败,因为正如我之前所写,你是不需要它; b $ b需要它;看看 Runtime.exec(...)方法:你可以把它传递给你自己的环境,所以你不必把它传给你自己的环境。它不需要改变你自己的环境。
亲切的问候,
Jos
There is an API to get the environment variable, "System.getEnv".
But there is no setEnv method ?
Was there any problem to implement that?
Please explain ???
Debasis Jana.解决方案There is an API to get the environment variable, "System.getEnv".
But there is no setEnv method ?
Was there any problem to implement that?
Please explain ???
Debasis Jana.You don''t need it; if you want a changeable environment you can build your own:
Expand|Select|Wrap|Line Numbers
You don''t need it; if you want a changeable environment you can build your own:
Expand|Select|Wrap|Line Numbers
Thanks for your reply ....!
But how could I make it persistent ???
Should I use Serialization?
Anyway one more thing ..why SUN failed to design System.setEnv?
I need this explain ..please!
Debasis JanaSun didn''t fail in designing that method because, as I wrote before, you don''t
need it; have a look at the Runtime.exec( ... ) methods: you can pass it
an environment yourself so you don''t have to pass it your own environment. It
simply isn''t needed to alter your own environment.
kind regards,
Jos
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