I’m currently trying to provide custom messages for exceptions, but ran into an issue with HttpMessageNotReadableException.
I have an ErrorDetails class:
public class ErrorDetails {
private Date timestamp;
private String message;
private String details;
public ErrorDetails(Date timestamp, String message, String details) {
super();
this.timestamp = timestamp;
this.message = message;
this.details = details;
}
public Date getTimestamp() {
return timestamp;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getDetails() {
return details;
}
public void setDetails(String details) {
this.details = details;
}
I also have a custom exception handler:
@Order(Ordered.HIGHEST_PRECEDENCE)
@ControllerAdvice
@RestController
public class CustomizedExceptionHandler extends ResponseEntityExceptionHandler {
@ExceptionHandler(HttpMessageNotReadableException.class)
@Override
public final ResponseEntity<Object> handleHttpMessageNotReadable(HttpMessageNotReadableException ex, HttpHeaders headers, HttpStatus status, WebRequest request){
ErrorDetails errorDetails = new ErrorDetails(new Date(), "hello",request.getDescription(true));
errorDetails.setMessage("Testing message");
return new ResponseEntity<>(errorDetails,HttpStatus.NOT_ACCEPTABLE);
}
}
But when i try to post a bad request, for example, with a field that should have a integer value I pass a string in the JSON it still returns the default error message of:
{
"timestamp": "2019-03-12T00:15:14.210+0000",
"status": 400,
"error": "Bad Request",
"message": "JSON parse error: Cannot deserialize value of type `int` from String "lala": not a valid Integer value; nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `int` from String "lala": not a valid Integer valuen at [Source: (PushbackInputStream); line: 5, column: 17] (through reference chain: com.tdl.model.ToDoNote["priority"])",
"path": "/todos"
}
The JSON request:
{
"name": "An workout",
"dateToComplete": "Today",
"description": "Sleep Day",
"priority": "lala",
"completed": false
}
The desired effect would just be the test message appearing instead of the long description.
I also get this in my Eclipse console:
WARN 16508 — [nio-5000-exec-4] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type
int
from String “lala”: not a valid Integer value; nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of typeint
from String “lala”: not a valid Integer value at [Source: (PushbackInputStream); line: 5, column: 17] (through reference chain: com.tdl.model.ToDoNote[“priority”])]
I changed the status to NOT_ACCEPTABLE just to see more clearly if my custom error is returned.
Any help would be appreciated. Thank you.
EDIT
Added ExceptionHandler for InvalidFormatException, but nothing changed. I still get the default error(exception) message same as before.
@ExceptionHandler(InvalidFormatException.class)
public final ResponseEntity<Object> handleInvalidFormat(InvalidFormatException ex, HttpHeaders headers, HttpStatus status, WebRequest request){
ErrorDetails errorDetails = new ErrorDetails(new Date(), "hello",request.getDescription(true));
errorDetails.setMessage("Testing message");
return new ResponseEntity<>(errorDetails,HttpStatus.NOT_ACCEPTABLE);
}
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Answer
The problem is solved. I had my custom exception classes in a badly named package. It was called just exception. While it should have been com.app.exception where the whole project is.