如何在RestEntity的主体中传递自定义对象

Question

在将自定义对象传递到RequestEntity主体时，我将主体设为null，同时在RestController API中检索它。

我在其中设置RequestEntity的源代码

    final BodyBuilder requestBuilder = RequestEntity.method(method, builder.build().toUri());
    //Set Accept
    if(accept != null) {
        requestBuilder.accept(accept);
    }
    //Set Content-Type
    if(contentType != null) {
        requestBuilder.contentType(contentType);
    }
    //Add Headers
    addHeadersToRequest(headerParams, requestBuilder);
    addHeadersToRequest(defaultHeaders, requestBuilder);
    //Set Body
    RequestEntity<BusinessRequest> requestEntity = requestBuilder.body(requestBody);
    ResponseEntity<BusinessResponse> responseEntity = restTemplate.exchange(requestEntity, BusinessResponse.class);

我要检索RestEntity的目标代码->

@GetMapping("/mcloed")
public ResponseEntity<BusinessResponse> getMcloedResponse(RequestEntity<BusinessRequest> request) throws Exception  {
    LOGGER.info("AdapterController : getMcloedResponse started");
    BusinessResponse response = null;
    adapterService.setAdapterHandler(mcloedAPIHandler);
    response = adapterService.getMcloedResponse(request);
    HttpHeaders headers = new HttpHeaders();
    return ResponseEntity.accepted().headers(headers).body(response);

}

在这里，在目标代码request.getBody始终返回null。