springboot打成jar后无法读取根路径和文件的解决

ClassLoader.getSystemResourceAsStream(authenticationFileName)
PropertiesUtils.class.getClass().getResourceAsStream("/authentication.properties")

ClassPathResource resource = new ClassPathResource("application.yml");
InputStream inputStream = resource.getInputStream();

ClassPathResource resource = new ClassPathResource(filePath);
InputStream inputStream = resource.getInputStream();