[英]Java/Spring: Override default @RequestBody functionality
所以我有這個 API:
public Map<String, Object> myFunc(@RequestBody @Valid MyPrivateEntity body) {}
其中標有@RequestBody 和@Valid
問題是,如果我在調用此 API 時省略正文,則會收到以下錯誤消息:
{
"title": "Failed to parse request",
"detail": "Required request body is missing: public com.privatePackage.misc.service.rest.MyPrivateEntity com.privatePackage.misc.service.rest.MyPrivateResource.myFunc(java.lang.String, com.privatePackage.misc.service.rest.MyPrivateEntity)",
"status": 400
}
我不希望錯誤消息包含 class 名稱和路徑,而只是“缺少必需的請求正文”。
我怎樣才能做到這一點?
謝謝
試試這個代碼
@ExceptionHandler(BindException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST) // return 400 if validate fail
public String handleBindException(BindException e) {
// return message of first error
String errorMessage = "Request not found";
if (e.getBindingResult().hasErrors())
e.getBindingResult().getAllErrors().get(0).getDefaultMessage();
return errorMessage;
}
或者使用這種方式
public Map<String, Object> myFunc(
@RequestBody @Valid MyPrivateEntity body,
BindingResult bindingResult) { // add this parameter
// When there is a BindingResult, the error is temporarily ignored for manual handling
// If there is an error, block it
if (bindingResult.hasErrors())
throw new Exception("...");
}
如果您只需要對此端點進行更多控制,那么我建議將請求正文標記為可選,並檢查該方法是否為 null 然后返回您想要顯示的任何消息。
@RequestBody(required = false)
嘗試使用@ControllerAdvice
來自定義您的消息。
@ControllerAdvice
public class RestExceptionHandler extends ResponseEntityExceptionHandler {
@Override
protected ResponseEntity<Object> handleHttpMessageNotReadable(
HttpMessageNotReadableException ex, HttpHeaders headers,
HttpStatus status, WebRequest request) {
// paste custom hadling here
}
}
參考:
https://ittutorialpoint.com/spring-rest-handling-empty-request-body-400-bad-request/
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