17- Creating Custom Exception

 

In case the resource or information you are looking for does not exists then I want my application to throw a Custom Exception

Creating Custom Exception

springboot-backendd --> src/main/java --> net.javaguides.springboot.exception -->ResourceNotFoundException.java

package net.javaguides.springboot.exception;

import org.springframework.http.HttpStatus;

import org.springframework.web.bind.annotation.ResponseStatus;

@ResponseStatus(value=HttpStatus.NOT_FOUND)

public class ResourceNotFound extends RuntimeException {

   

    /**

     *

     */

    private static final long serialVersionUID = 1L;

    private String resourceName;

    private String fieldName;

    private Object fieldValue;

   

    public ResourceNotFound(String resourceName, String fieldName, Object fieldValue) {

        super(String.format("%s not found with %s:'%s'",resourceName,fieldName,fieldValue));

        this.resourceName = resourceName;

        this.fieldName = fieldName;

        this.fieldValue = fieldValue;

    }

    public String getResourceName() {

        return resourceName;

    }

    public String getFieldName() {

        return fieldName;

    }

     public Object getFieldValue() {

        return fieldValue;

    }

}