feat : add exception handler

src/main/java/com/example/wfwebapi/controller/CaracterController.java

@@ -6,6 +6,8 @@ import com.example.wfwebapi.repository.CaracterRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @RestController
 @RequestMapping("/api/v1/caracter")
 public class CaracterController {
@@ -19,6 +21,11 @@ public class CaracterController {
                 .orElseThrow(() -> new ResourceNotFoundException("Caracter non trouvé : " + id));
     }
 
+    @GetMapping("/")
+    public List<Caracter> getCaracters() {
+        return caracterRepository.findAll();
+    }
+
     @PostMapping
     public Caracter createCaracter(@RequestBody Caracter caracter) {
         return caracterRepository.save(caracter);

src/main/java/com/example/wfwebapi/exception/GlobalExceptionHandler.java

@@ -0,0 +1,25 @@
+package com.example.wfwebapi.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<String> handleAllExceptions(Exception ex) {
+        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("An error occurred : " + ex.getMessage());
+    }
+
+    @ExceptionHandler(NullPointerException.class)
+    public ResponseEntity<String> handleNullPointerException(NullPointerException ex) {
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("Null pointer exception caught : " + ex.getMessage());
+    }
+
+    @ExceptionHandler(ResourceNotFoundException.class)
+    public ResponseEntity<String> handleResourceNotFoundException(ResourceNotFoundException ex) {
+        return ResponseEntity.status(HttpStatus.NOT_FOUND).body("Resource not found : " + ex.getMessage());
+    }
+}