读取属性文件时，getResourceAsStream返回null [英] getResourceAsStream returns null when reading properties file

问题描述

我想从Maven资源文件夹中加载application.properties文件，但getResourceAsStream返回空.这是我的代码:

I want to load application.properties file form maven resource folder but getResourceAsStream returns null. here is my code:

static {
    Properties props = new Properties(); 
    InputStream in = Configuration.class.getResourceAsStream("application.properties");
    props.load(in);
}

但InputStream为空. Configuration类位于org.elasticsearch.utils包中，而application.properties位于src/main/resources中.怎么了?

but InputStream is null. Configuration class is located at org.elasticsearch.utils package and application.properties is located at src/main/resources. What is wrong?

推荐答案

您正在尝试读取相对于Configuration类的类路径资源.

You're trying to read a classpath resource relative to the Configuration class.

• 如果要执行此操作，则资源必须位于相同的相对路径上，即，属性文件必须位于src/main/resources/org/elasticsearch/utils中.
• 或者您也可以使用绝对路径:/application.properties.

• If you want to do this, the resource must be on the same relative path, i.e. your property file must be in src/main/resources/org/elasticsearch/utils.
• Or you can instead use absolute path: /application.properties.

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