System.getProperty("key")从何处读取(哪个属性文件)? [英] Where (which properties file) does System.getProperty("key") reads from?
问题描述
我的应用程序使用String str = System.getProperty("key","default");，它总是返回默认值，因为我无法在属性文件中设置键值对.
My application uses String str = System.getProperty("key","default"); which always returns default because i am not able to set the key-value pair in the properties file.
我尝试在用户-> appdata-> locallow-> sun-> java> deployment中的deployment.properties文件中进行设置，并且还直接将key = value放入Java控制面板中的运行时参数中，但是不起作用.
I tried setting it in deployment.properties file located in users->appdata->locallow->sun->java>deployment and also directly putting key=value in runtime parameter in java control panel but not working.
请帮助我正确设置它，或者如果存在要设置这些值的其他属性文件，请共享路径? 我用Google搜索，但找不到.谢谢
Please help me to set it correctly or if there exist a different properties file where these values is to be set, kindly share the path ? I google it but couldn't find.Thanks in Advance
我们使用jeety服务器进行部署.我们还有许多与源代码捆绑在一起的属性文件.
We use jeety server for deployment.And we have many properties file bundled with our souce code.
推荐答案
如果要为System.getProperty设置自定义属性文件，这就是我们在这里要做的事情:
If you want to setup a custom property file for System.getProperty, this is what we here do:
- 为您将为Web应用程序创建的所有类创建一个基类作为基对象.
- 在基类中，编写此代码
- Create a base class as a base object for all the class you'll make for your web application.
- In base class, write this code
java.io.InputStream is = loader.getResourceAsStream("custom system property filename");
System.getProperties().load(is);
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