定製的ExceptionHandler爲HttpMessageNotReadableException春季數據REST

投遞無效JSON到春季數據REST（版本2.2.2）資源，一個HttpMessageNotReadableException被拋出下面的JSON返回：定製的ExceptionHandler爲HttpMessageNotReadableException春季數據REST

{ 
    "cause": { 
     "cause": { 
      "cause": null, 
      "message": "Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value\n at [Source: [email protected]; line: 2, column: 20]" 
     }, 
     "message": "Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value\n at [Source: [email protected]; line: 2, column: 20] (through reference chain: gr.bytecode.exceptionhandling.domain.Book[\"name\"])" 
    }, 
    "message": "Could not read JSON: Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value\n at [Source: [email protected]; line: 2, column: 20] (through reference chain: gr.bytecode.exceptionhandling.domain.Book[\"name\"]); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value\n at [Source: [email protected]; line: 2, column: 20] (through reference chain: gr.bytecode.exceptionhandling.domain.Book[\"name\"])" 
}

有一種明智的方式來覆蓋這種行爲並返回一個自定義的錯誤消息？

這裏是我試過到目前爲止：

我添加了一個自定義@ExceptionHandler爲例外，但它永遠不會被調用：

@ControllerAdvice 
public class CustomResponseEntityExceptionHandler { 

    @ExceptionHandler(HttpMessageNotReadableException.class) 
    @ResponseStatus(value = HttpStatus.INTERNAL_SERVER_ERROR) 
    protected ResponseEntity<Object> handleMethodArgumentNotValid(
      HttpMessageNotReadableException ex, HttpHeaders headers, HttpStatus status) { 

     ErrorMessage errorMessage = new ErrorMessage("some error"); 
     return new ResponseEntity<Object>(errorMessage, headers, status); 
    } 
}

的ErrorMessage是一個簡單的POJO。

看來，春季數據REST的AbstractRepositoryRestController，在行＃97定義的優先級的方法：

@ExceptionHandler({ HttpMessageNotReadableException.class }) 
@ResponseBody 
public ResponseEntity<ExceptionMessage> handleNotReadable(HttpMessageNotReadableException e) { 
    return badRequest(e); 
}

我也試圖擴大ResponseEntityExceptionHandler但同樣，也沒有勸它。

使用：春季數據REST 2.2.2和Spring 1.2.2引導

TA。

更新：Demo maven project available on github

來源

2015-04-15 dimi

一種方式來處理，這將是，到CustomResponseEntityExceptionHandler與ResponseEntityExceptionHandler延伸你有一個變化所做的：

，而不是返回ResponseEntity，你可以調用handleExceptionInternal法中規定，由ResponseEntityExceptionHandler。這個方法以及其他幾個參數也包含一個body參數。 body參數可以使用您的自定義Error對象進行設置。

例如：

ErrorInfo er = new ErrorInfo(request.getDescription(false), ex.getLocalizedMessage()); 
return handleExceptionInternal(ex, er, headers, status, request);

來源

2015-05-27 14:32:39

定製的ExceptionHandler爲HttpMessageNotReadableException春季數據REST

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