使用Quarkus,有人可以举一个例子,说明服务器和客户端代码如何使用反应性API通过http下载文件的外观吗?
到目前为止,我尝试返回nio ByteBuffer的流量,但似乎不受支持:
@RegisterRestClient(baseUri = "http://some-page.com")
interface SomeService {
// same interface for client and server
@GET
@Produces(MediaType.APPLICATION_OCTET_STREAM)
@Path("/somePath")
fun downloadFile(): reactor.core.publisher.Flux<java.nio.ByteBuffer>
}
尝试在服务器端返回磁通量会导致以下异常:
ERROR: RESTEASY002005: Failed executing GET /somePath
org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find MessageBodyWriter for response object of type: kotlinx.coroutines.reactor.FlowAsFlux of media type: application/octet-stream
at org.jboss.resteasy.core.ServerResponseWriter.lambda$writeNomapResponse$3(ServerResponseWriter.java:124)
at org.jboss.resteasy.core.interception.jaxrs.ContainerResponseContextImpl.filter(ContainerResponseContextImpl.java:403)
at org.jboss.resteasy.core.ServerResponseWriter.executeFilters(ServerResponseWriter.java:251)
...
Here是一个如何使用小黑变种开始反应文件下载的示例。主要功能是getFile
@GET
@Path("/f/{fileName}")
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Uni<Response> getFile(@PathParam String fileName) {
File nf = new File(fileName);
log.info("file:" + nf.exists());
ResponseBuilder response = Response.ok((Object) nf);
response.header("Content-Disposition", "attachment;filename=" + nf);
Uni<Response> re = Uni.createFrom().item(response.build());
return re;
}
您可以使用mvn quarkus:dev
在本地进行测试,然后转到该URL以查看http://localhost:8080/hello/list/test中有哪些文件,然后您可以调用该URL以开始下载http://localhost:8080/hello/f/reactive-file-download-dev.jar
我没有检查过助焊剂(它看起来像是更多的春天,然后是夸克),随时分享您的想法。我只是在学习和回答/共享。