这是豆子
@Service
@RequiredArgsConstructor
public class BeanWithResourceLoader{
private final ResourceLoader resourceLoader;
@SneakyThrows
private String readResource() {
return IOUtils.toString(
resourceLoader.getResource(
"classpath:/some_resource.json").getInputStream(),
StandardCharsets.UTF_8.name());
}
}
另一个bean调用它:
var result =
customThreadPool.submit(
() -> listOfThings.parallelStream().map(aThing ->beanWithResourceLoader.readResource())
.collect(Collectors.toList()))
.get();
customThreadPool.submit
或只是 listOfThings.parallelStream()
导致 java.io.FileNotFoundException 在 readResource
找不到文件!
Caused by: java.io.FileNotFoundException: class path resource [some_resource.json] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180)
但是stream
(无并发)
listOfThings.stream().map(aThing ->beanWithResourceLoader.readResource())
.collect(Collectors.toList())
作品...
在单元测试中不可重现,当应用程序作为 jar 启动时可重现。
我该如何克服它?