如何修改HAPIFHIROpenAPI文档中的响应？

可以通过编写自定义控制器并使用Spring AOP拦截器来修改API响应。以下是一些示例代码：

首先，创建一个自定义控制器：

@RestController
public class CustomController {
    
    @Autowired
    private FhirContext fhirContext;
    
    @RequestMapping(value = "/Patient/{id}", method= RequestMethod.GET, produces= {"application/json", "application/fhir+json"})
    public ResponseEntity<String> getPatient(@PathVariable(value= "id") String id, HttpServletRequest request, HttpServletResponse response) throws IOException {
        
        IParser parser = fhirContext.newJsonParser();
        parser.setPrettyPrint(true);
        
        Patient patient = new Patient();
        patient.setId(id);
        patient.addName().setFamily("Smith").addGiven("John");
        
        String responseString = parser.encodeResourceToString(patient);
        
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        
        return new ResponseEntity<String>(responseString, headers, HttpStatus.OK);
    }
}

然后，创建一个Spring AOP拦截器：

@Aspect
@Configuration
public class ResponseInterceptor {
    
    @Autowired
    private FhirContext fhirContext;
    
    @Around("execution(* org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handle(..))")
    public Object modifyResponse(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        Object returnValue = proceedingJoinPoint.proceed();
        if (returnValue instanceof ResponseEntity) {
            ResponseEntity<?> responseEntity = (ResponseEntity<?>) returnValue;
            
            if (responseEntity.getBody() instanceof String) {
                String body = (String) responseEntity.getBody();
                
                // Perform modifications on the response body
                Patient patient = (Patient) fhirContext.newJsonParser().parseResource(body);
                patient.addTelecom().setSystem(ContactPoint.ContactPointSystem.PHONE).setValue("555-555-5555");
                String modifiedBody = fhirContext.newJsonParser().encodeResourceToString(patient);
                
                HttpHeaders headers = new HttpHeaders();
                headers.setContentType(MediaType.APPLICATION_JSON);
                
                return new ResponseEntity<String>(modifiedBody, headers, responseEntity.getStatusCode());
            }
        }
        return returnValue;
    }
}

这将修改返回的患者资源并添加一个电话号码。

请注意，上述代码示例仅适用于返回JSON的情况。如果您需要在响应中生成XML，则需要为XML创建相同的代码。