https://blog.burakkutbay.com

Author: BrkSe

src/main/java/com/burakkutbay/springbootexceptionhandler/exception/CustomExceptionHandler.java

@@ -2,12 +2,11 @@
 
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
-import org.springframework.web.servlet.NoHandlerFoundException;
 
-import javax.persistence.EntityNotFoundException;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * @author : Burak KUTBAY
@@ -17,13 +16,19 @@
 public class CustomExceptionHandler {
 
     @ExceptionHandler(CustomerNotFoundException.class)
-    public ResponseEntity<String> customerNotFoundException(CustomerNotFoundException customerNotFoundException) {
-        return new ResponseEntity<String>(customerNotFoundException.getMessage(), HttpStatus.BAD_REQUEST);
+    public ResponseEntity<?> customerNotFoundException(CustomerNotFoundException customerNotFoundException) {
+        List<String> detail = new ArrayList<>();
+        detail.add(customerNotFoundException.getMessage());
+        ErrorResponse errorResponse = new ErrorResponse("Customer Not Found", detail);
+        return new ResponseEntity<>(errorResponse, HttpStatus.BAD_REQUEST);
     }
 
-    @ExceptionHandler({NoHandlerFoundException.class, EntityNotFoundException.class,CustomerNotNullException.class})
-    public ResponseEntity<String> customerNotNull(CustomerNotNullException customerNotNullException) {
-        return new ResponseEntity<String>(customerNotNullException.getMessage(), HttpStatus.BAD_REQUEST);
+    @ExceptionHandler(CustomerNotNullException.class)
+    public ResponseEntity<?> customerNotNull(CustomerNotNullException customerNotNullException) {
+        List<String> detail = new ArrayList<>();
+        detail.add(customerNotNullException.getMessage());
+        ErrorResponse errorResponse = new ErrorResponse("Customer Not Null", detail);
+        return new ResponseEntity<>(errorResponse, HttpStatus.BAD_REQUEST);
     }
 
 

src/main/java/com/burakkutbay/springbootexceptionhandler/exception/ErrorResponse.java

@@ -0,0 +1,21 @@
+package com.burakkutbay.springbootexceptionhandler.exception;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.List;
+
+/**
+ * /**
+ *
+ * @author : Burak KUTBAY
+ * Date    : 30.11.2021
+ */
+@AllArgsConstructor
+@Getter
+@Setter
+public class ErrorResponse {
+    private String message;
+    private List<String> details;
+}

src/main/java/com/burakkutbay/springbootexceptionhandler/service/CustomerService.java

@@ -22,7 +22,7 @@ public class CustomerService {
 
     public Customer addCustomer(Customer customer) {
         if (customer.getName().isBlank() || customer.getName().isEmpty()) {
-            throw new CustomerNotNullException("Customer Name Not Null");
+            throw new CustomerNotNullException("Customer name must be not null");
         }
         return customerRepository.save(customer);
 
@@ -34,11 +34,14 @@ public List<Customer> findAllCustomer() {
 
     public Customer getCustomerById(Long customerId) {
         Optional<Customer> optionalCustomer = customerRepository.findById(customerId);
-        Customer customer = optionalCustomer.orElseThrow(() -> new CustomerNotFoundException("Customer Not Found"));
+        Customer customer = optionalCustomer.orElseThrow(() -> new CustomerNotFoundException(customerId + " "));
         return customer;
     }
 
     public void deleteCustomerById(Long customerId) {
+        Optional<Customer> optionalCustomer = customerRepository.findById(customerId);
+        Customer customer = optionalCustomer.orElseThrow(() -> new CustomerNotFoundException(customerId.toString()));
+
         customerRepository.deleteById(customerId);
     }
 

src/main/resources/application.properties

@@ -1 +1,2 @@
 
+server.port=9865