定制的ExceptionHandler为HttpMessageNotReadableException春季数据REST

投递无效JSON到春季数据REST（版本2.2.2）资源，一个HttpMessageNotReadableException被抛出下面的JSON返回：定制的ExceptionHandler为HttpMessageNotReadableException春季数据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\"])" 
}

有一种明智的方式来覆盖这种行为并返回一个自定义的错误消息？

这里是我试过到目前为止：

我添加了一个自定义@ExceptionHandler为例外，但它永远不会被调用：

@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是一个简单的POJO。

看来，春季数据REST的AbstractRepositoryRestController，在行＃97定义的优先级的方法：

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

我也试图扩大ResponseEntityExceptionHandler但同样，也没有劝它。

使用：春季数据REST 2.2.2和Spring 1.2.2引导

TA。

更新：Demo maven project available on github

来源

2015-04-15 dimi

一种方式来处理，这将是，到CustomResponseEntityExceptionHandler与ResponseEntityExceptionHandler延伸你有一个变化所做的：

，而不是返回ResponseEntity，你可以调用handleExceptionInternal法中规定，由ResponseEntityExceptionHandler。这个方法以及其他几个参数也包含一个body参数。 body参数可以使用您的自定义Error对象进行设置。

例如：

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

来源

2015-05-27 14:32:39

定制的ExceptionHandler为HttpMessageNotReadableException春季数据REST

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