@ Autowired私有ResourcePatternResolver resourcePatternResolver;
String s3path = req.s3Folder+"/key1/key123/*.gz";
Resource[] allTxtFilesInFolder = resourcePatternResolver.getResources(s3path);
我正在尝试使用spring-cloud-starter-aws从s3读取文件。无论如何,当完全指定文件名并且不能与通配符一起使用时,它会很好地工作。
这是我在日志中看到的内容
INFO [main] [.i.s.PathMatchingResourcePatternResolver]:无法解析Amazon s3资源[bucket ='bucketname'和文件系统中的object ='2l6hpfhfryz8422qr8nxy8x0a2-0 / key1 / key123']:java.lang.UnsupportedOperationException:不能将Amazon S3资源解析为java.io.File对象。使用getInputStream()检索对象的内容!
为什么调用PathMatchingResourcePatternResolver而不是PathMatchingSimpleStorageResourcePatternResolver
经过研究,我找到了答案。我必须明确地自动将resourcePatternResolver绑定为PathMatchingSimpleStorageResourcePatternResolver
private ResourcePatternResolver resourcePatternResolver;
@Autowired
public void setupResolver(ApplicationContext applicationContext, AmazonS3 amazonS3){
this.resourcePatternResolver = new PathMatchingSimpleStorageResourcePatternResolver(amazonS3, applicationContext);
}