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[英]Why we write NextActivity::class.java although this is a kotlin class?
[英]Kotlin: MyClass::class.java vs this.javaClass
我正在将项目迁移到Kotlin,这个:
public static Properties provideProperties(String propertiesFileName) {
Properties properties = new Properties();
InputStream inputStream = null;
try {
inputStream = ObjectFactory.class.getClassLoader().getResourceAsStream(propertiesFileName);
properties.load(inputStream);
return properties;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
就是现在:
fun provideProperties(propertiesFileName: String): Properties? {
return Properties().apply {
ObjectFactory::class.java.classLoader.getResourceAsStream(propertiesFileName).use { stream ->
load(stream)
}
}
}
非常好,Kotlin! :P
问题是:此方法在src/main/resources
查找.properties
文件。 使用:
ObjectFactory::class.java.classLoader...
它有效,但使用:
this.javaClass.classLoader...
classLoader
为null
...
(注意内存地址也不同)
为什么?
谢谢
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