springboot idea运行正常，打成jar包找不到resources下文件

props.put("ssl.truststore.location", "src/main/resources/ssl/kafka/***.jks");

String filename = "/ssl/kafka/***.jks";
ClassPathResource resource = new ClassPathResource(filename);
InputStream inputStream = resource.getInputStream();
ApplicationHome applicationHome = new ApplicationHome(当前类名.class);
filePath = applicationHome.getSource().getParentFile().toString() + filename ;
File configFile = new File(filePath);

props.put("ssl.truststore.location", filePath);

建议封装成工具类使用。