Spring @ExceptionHandler does not work with @ResponseBody

Question

I try to configure a spring exception handler for a rest controller that is able to render a map to both xml and json based on the incoming accept header. It throws a 500 se

Answer 1

I am using Spring 3.2.4. My solution to the problem was to make sure that the object I was returning from the exception handler had getters.

Without getters Jackson was unable to serialize the object to JSON.

In my code, for the following ExceptionHandler:

@ExceptionHandler(RuntimeException.class)
@ResponseBody
public List exceptionHandler(Exception exception){
    return ((ConversionException) exception).getErrorInfos();
}

I needed to make sure my ErrorInfo object had getters:

package com.pelletier.valuelist.exception;

public class ErrorInfo {
private int code;
private String field;
private RuntimeException exception;

public ErrorInfo(){}

public ErrorInfo(int code, String field, RuntimeException exception){
    this.code = code;
    this.field = field;
    this.exception = exception;
}

public int getCode() {
    return code;
}

public String getField() {
    return field;
}

public String getException() {
    return exception.getMessage();
}
}