Spring-Boot Resource Not Found when using executeable Jar

Question

again I face a strange issue and hope someone here can help.

I have a spring boot backend module, what works in eclipse well and application is executeable when sta

Answer 1

Now I needed to find xmlFiles into a resource folder from a JAR and facing similar problems described here already. I would like to share my findings and how I got it work, maybe it is helpful.

In a jar I have "db-input" folder under src/main/resources with any number for xml-Files for DB-Input. My application is Spring-Based:

@Component
public class DatabaseInitializer implements InitializingBean {
    @Autowired DomainConfigurationRepository repository;
    @Autowired MarshallerService marshallerService;
    @Autowired ApplicationContext context;

    @Override
    public void afterPropertiesSet() throws Exception {
        final Resource[] resources = context.getResources("classpath*:db-input/*");
        final Set filePaths = findInputFileNames(resources);
        final Set configurations = createConfigurations(filePaths);
        repository.save(configurations);
    }

    private  Set createConfigurations(final Set filePaths) throws Exception {
        final Set configurations = new HashSet<>();
        for(final String path : filePaths){
            final Resource resource = context.getResource(path);
            final DomainConfigurationXO xoConfiguration = marshallerService.unmarshal(resource.getInputStream());
            final DomainConfiguration configuration = PopulationUtils.getPopulatedConfiguration(xoConfiguration);
            configurations.add(configuration);
        }
        return configurations;
    }

    public Set findInputFileNames(final Resource[] inputDirectoryResources) throws IOException {
        return Arrays.stream(inputDirectoryResources)
                .map(resource -> extractURI(resource))
                .collect(Collectors.toSet());
    }

    private String extractURI(Resource resource){
        try {
            return resource.getURI().toString();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}