post request upload file in azure,but appear 411

I have a request from the client to the service，this is post request upload file in azure ,but occurred 411,the following message appears:

feign.FeignException$FeignClientException: status 411 reading FileServiceClient#handleFileUpload(MultipartFile)
	at feign.FeignException.clientErrorStatus(FeignException.java:181)
	at feign.FeignException.errorStatus(FeignException.java:141)
	at feign.FeignException.errorStatus(FeignException.java:133)
	at feign.codec.ErrorDecoder$Default.decode(ErrorDecoder.java:92)
	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:151)
	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:80)
	at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103)
	at com.sun.proxy.$Proxy209.handleFileUpload(Unknown Source)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
	at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

client:
      @PostMapping(value = "/azure/blob/uploadFile", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
      RestResultResponse<FileUploadVO> handleFileUpload(@RequestParam("multipartFile") MultipartFile multipartFile);

service:
     @PostMapping(value = "/uploadFile")
    public ResponseDTO<FileUploadVO> uploadFileFegin(@RequestParam("multipartFile") MultipartFile multipartFile) {
        return  ResponseUtils.success(azureBlobUtil.upload(multipartFile));
    }

Can help me give me some suggest or idea improve it？

Start with the Feign client method handleFileUpload and the service uploadFileFegin mapping shown in the issue, then inspect the multipart request sent to Azure and the source of the 411 response. Reproduce the upload with the provided mappings and determine whether the failure is in Feign, the service endpoint, or Azure; done requires a confirmed cause and a documented resolution.