public static ResourceLoader createResourceLoader() {
	ClientConfiguration configuration = new ClientConfiguration();
	configuration.setMaxConnections(1000);
	AmazonS3 amazonS3 = new AmazonS3Client(configuration);

	SimpleStorageProtocolResolver protocolResolver = new SimpleStorageProtocolResolver(amazonS3);
	protocolResolver.afterPropertiesSet();
	DefaultResourceLoader resourceLoader = new DefaultResourceLoader();
	resourceLoader.addProtocolResolver(protocolResolver);
	ResourcePatternResolver resourceResolver = new PathMatchingResourcePatternResolver(resourceLoader);
	return new PathMatchingSimpleStorageResourcePatternResolver(amazonS3, resourceResolver);
}
 

@Autowired
public void setupResolver(ApplicationContext applicationContext, AmazonS3 amazonS3) {
	this.resourceLoader = new PathMatchingSimpleStorageResourcePatternResolver(
			amazonS3, applicationContext);
}
 

@Autowired
public void setupResolver(ApplicationContext applicationContext, AmazonS3 amazonS3) {
    this.resourcePatternResolver = new PathMatchingSimpleStorageResourcePatternResolver(amazonS3, applicationContext);
}