[英]ExceptionHandler doesn't work in controller
我想用 spring 更改 REST API 請求的返回狀態。
我創建了一個異常類:
public class AutomatedActionValidatorException extends RuntimeException {
public AutomatedActionValidatorException(String message) {
super(message);
}
}
還有一個控制器(評論了我用於測試異常拋出的原始代碼):
@Controller
@RequestMapping("/api/automated_actions")
public class AutomatedActionController {
@Resource
private AutomatedActionsService automatedActionsService;
@Resource
private AutomatedActionResponseService automatedActionResponseService;
@Resource
private AutomatedActionsSchedulingService automatedActionsSchedulingService;
@ResponseBody
@RequestMapping(value = "/save_and_run", method = RequestMethod.POST)
public AutomatedAction saveAndRunAutomatedAction(HttpServletRequest request,
@RequestBody AutomatedActionRequest automatedActionRequest) {
throw new AutomatedActionValidatorException("");
// AutomatedAction automatedAction = saveAutomatedAction(request, automatedActionRequest);
// automatedActionsSchedulingService.runAutomatedActions(Collections.singletonList(automatedAction));
// return automatedAction;
}
private AutomatedAction saveAutomatedAction(HttpServletRequest request,
@RequestBody AutomatedActionRequest automatedActionRequest) {
return automatedActionsService.save(automatedActionRequest);
}
@ExceptionHandler(value = AutomatedActionValidatorException.class)
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
@ResponseBody
public String handleAutomatedActionValidatorException(AutomatedActionValidatorException ex) {
return ex.getMessage();
}
調用該端點時,我仍然收到 500 錯誤代碼。
從我添加的日志中, handleAutomatedActionValidatorException
方法已被忽略。
我收到的回復是:
{
errorMessage: "Unexpected error occurred.", data: null, success: false,
errorMessageKey: null}
data: null
errorMessage: "Unexpected error occurred."
errorMessageKey: null
success: false
}
知道我錯過了什么嗎?
謝謝
(我不確定如果客戶端以錯誤的格式發送您的@RequestBody AutomatedActionRequest automatedActionRequest
請求,它是否會拋出狀態代碼 500,您可能想要注釋掉此代碼,直到它拋出您正在等待的異常
編輯:如果 RequestBody 格式錯誤,它將丟棄 BAD_REQUEST。 我您的異常 500 必須在您的代碼到達此時之前發生)
如果您沒有在 ExceptionHandler 中做任何特別的事情,也許將您的異常更改為這樣就足夠了:
@ResponseStatus(code = HttpStatus.BAD_REQUEST, reason = "Bad request!")
public class AutomatedActionValidatorException extends RuntimeException {
public AutomatedActionValidatorException(String message) {
super(message);
}
}
請檢查它是否有效。 (放入注釋塊您的異常處理程序)
如果您返回代碼 400,那么您就會知道問題出在異常處理程序中。
這些可能對你有幫助:
https://spring.io/blog/2013/11/01/exception-handling-in-spring-mvc https://www.baeldung.com/spring-response-status-exception
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