Spring ControllerAdvice不处理来自静态方法的异常

Question

我有以下方法：

static <T extends Enum<T> & IEnum> T getEnumFromString(Class<T> c, String value) throws EnumException {
    T[] values = c.getEnumConstants();
    for (T v : values) {
        if (v.getStringValue().equals(value)) {
            return v;
        }
    }

    throw new EnumException(String.format("[%s] enum does not have value [%s]", c.getSimpleName(), value));
}

在序列化期间调用。

枚举异常扩展了异常

我的控制器方法：

public ResponseEntity<Transaction> validateTransaction(@RequestBody Transaction transaction){
   ...
}

事务类：

public class Transaction {

    private TransactionType transactionType;
    private String iban;
    private String cnp;
    private String name;
    private String description;
    private Float sum;

    public void setTransactionType(String transactionType) throws EnumException {
        this.transactionType = TransactionType.fromString(transactionType);
    }
    ...
}

在此setter中，引发枚举异常

在调试@ControlllerAdvie方法时，我看到它正在从响应EntityExceptionHandler类调用handleException（...）方法而不是我的方法

在抛出EnumException的情况下，我得到400状态代码和空响应正文。

public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {

@ExceptionHandler(EnumException.class)
public ResponseEntity<Object> handleIllegalArgumentException(Exception ex, WebRequest request) {
    String errorMessage = ex.getMessage();
    Map<String, Object> responseBody = buildResponseBody(HttpStatus.BAD_REQUEST, errorMessage);
    return handleExceptionInternal(ex, responseBody, new HttpHeaders(), HttpStatus.CONFLICT, request);
}
}

为什么不执行异常处理程序方法？

以下是日志：

POST "/transaction", parameters={}
2019-08-01 16:54:46.429 DEBUG 11349 --- [nio-8080-exec-2] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to public org.springframework.http.ResponseEntity<com.orange.validator.model.Transaction> com.orange.validator.controller.TransactionController.validateTransaction(com.orange.validator.model.Transaction)
2019-08-01 16:54:50.262 DEBUG 11349 --- [nio-8080-exec-2] .w.s.m.m.a.ServletInvocableHandlerMethod : Could not resolve parameter [0] in public org.springframework.http.ResponseEntity<com.orange.validator.model.Transaction> com.orange.validator.controller.TransactionController.validateTransaction(com.orange.validator.model.Transaction): JSON parse error: [TransactionType] enum does not have value [sdsds]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: [TransactionType] enum does not have value [sdsds]
 at [Source: (PushbackInputStream); line: 7, column: 21] (through reference chain: com.orange.validator.model.Transaction["transactionType"])
2019-08-01 16:54:50.272 DEBUG 11349 --- [nio-8080-exec-2] .m.m.a.ExceptionHandlerExceptionResolver : Using @ExceptionHandler public final org.springframework.http.ResponseEntity<java.lang.Object> org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler.handleException(java.lang.Exception,org.springframework.web.context.request.WebRequest) throws java.lang.Exception
2019-08-01 16:54:50.300 DEBUG 11349 --- [nio-8080-exec-2] o.s.w.s.m.m.a.HttpEntityMethodProcessor  : No match for [*/*], supported: []
2019-08-01 16:54:50.305 DEBUG 11349 --- [nio-8080-exec-2] .m.m.a.ExceptionHandlerExceptionResolver : Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: [TransactionType] enum does not have value [sdsds]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: [TransactionType] enum does not have value [sdsds]
 at [Source: (PushbackInputStream); line: 7, column: 21] (through reference chain: com.orange.validator.model.Transaction["transactionType"])]
2019-08-01 16:54:50.306 DEBUG 11349 --- [nio-8080-exec-2] o.s.web.servlet.DispatcherServlet        : Completed 400 BAD_REQUEST

Answer 1

解决方案是重写handlehttpmessageontradable（…）方法。

@Override
protected ResponseEntity<Object> handleHttpMessageNotReadable(HttpMessageNotReadableException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
    IllegalArgumentException exception = (IllegalArgumentException) ex.getMostSpecificCause();
    String errorMessage = exception.getMessage();
    Map<String, Object> responseBody = buildResponseBody(HttpStatus.BAD_REQUEST, errorMessage);
    return handleExceptionInternal(ex, responseBody, new HttpHeaders(), HttpStatus.CONFLICT, request);
}

为了获取错误消息，我正在将HttpMessageOradeableException转换为抛出的异常，并获取正确的错误消息

Answer 2

使用@ResponseBody来

@ExceptionHandler(EnumException.class)
@ResponseBody
public ResponseEntity<Object> handleIllegalArgumentException(Exception ex, W...

或者试试这个

@ExceptionHandler({ Throwable.class })
    @ResponseBody
    public ResponseEntity<ErrorResponse> handleException(final Throwable e, final webrequest request) {
       String errorMessage = e.getMessage();
       Map<String, Object> responseBody = buildResponseBody(HttpStatus.BAD_REQUEST, errorMessage);
       return handleExceptionInternal(e, responseBody, new HttpHeaders(), HttpStatus.CONFLICT, request);
    }