getResourceAsStream returns NULL

After compilation, the config.propertes configuration file is generated in the target/classes directory.

This configuration file is used in the A class in the code. The usage is as follows:

prop.load(Object.class.getResourceAsStream("/config.properties"));

The result has been reported a NULL error.

Print path view

System.out.println(Object.class.getResource("/"));

The result is NULL, and the print path

System.out.println(A.class.getResource("/"));

The result is target/classes/

Therefore, the statement that takes the attribute is replaced.

prop.load(A.class.getResourceAsStream("/config.properties"));

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