Spring Web-flux控制器中如何在GET请求中接收多部分或有效数据

我们目前正在使用Web-flux将一些旧服务重写为spring框架。由于传统逻辑允许在GET请求上接收有效负载或多部分数据，因此我们需要在新服务中重新创建该行为。

如果发生Get请求，Web-flux不允许我们接收有效负载或多部分数据。我在@RestController和@Controller中测试了此行为。是否可以更改web-flux的配置以处理此类情况？

UploadFileController的示例：

@Controller
public class UploadController {

    @GetMapping(value = "/upload")
    public @ResponseBody Mono<ResponseEntity<String>> upload(@RequestBody Flux<Part> parts) {
        System.out.println("Upload controller was invoked");
        return parts.next()
            .flatMap(part -> DataBufferUtils.join(part.content()))
            .map(this::mapDataBufferToByteArray)
            .map(data -> {
                String uploadedData = new String(data);
                System.out.println("Uploaded file data: " + uploadedData);
                return ResponseEntity.ok(uploadedData);
            });
    }

    private byte[] mapDataBufferToByteArray(DataBuffer buffer) {
        byte[] data = new byte[buffer.readableByteCount()];
        buffer.read(data);
        return data;
    }
}

public class UploadControllerTest {

    @Autowired
    private TestRestTemplate testRestTemplate;

    @Test
    public void shouldUpload() {
        // given
        final HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);

        LinkedMultiValueMap<String, Object> parameters = new 
        LinkedMultiValueMap<>();
        parameters.add("file", "Test");

        // when
        ResponseEntity<String> response = 
        testRestTemplate.exchange("/upload",
                HttpMethod.GET,
                new HttpEntity<>(parameters, httpHeaders),
                String.class);

        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
    }
}

问题来源：Stack Overflow