exception : spring - ExceptionHandlerExceptionResolver

exception/src/main/java/hello/exception/api/ApiExceptionV2Controller.java

@@ -0,0 +1,59 @@
+package hello.exception.api;
+
+import hello.exception.exception.UserException;
+import hello.exception.exhandler.ErrorResult;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@Slf4j
+@RestController
+public class ApiExceptionV2Controller {
+
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(IllegalArgumentException.class)
+    public ErrorResult illegalExHandler(IllegalArgumentException e) {
+        log.error("[exceptionHandler] ex", e);
+        return new ErrorResult("BAD", e.getMessage());
+    }
+
+    @ExceptionHandler
+    public ResponseEntity<ErrorResult> userExHandler(UserException e) {
+        log.error("[exceptionHandler] ex", e);
+        ErrorResult errorResult = new ErrorResult("USER-EX", e.getMessage());
+        return new ResponseEntity<>(errorResult, HttpStatus.BAD_REQUEST);
+    }
+
+    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+    @ExceptionHandler
+    public ErrorResult exHandler(Exception e) {
+        log.error("[exceptionHandler] ex", e);
+        return new ErrorResult("EX", "내부 오류");
+    }
+
+    @GetMapping("/api2/members/{id}")
+    public MemberDto getMember(@PathVariable("id") String id) {
+
+        if (id.equals("ex")) {
+            throw new RuntimeException("잘못된 사용자");
+        }
+        if (id.equals("bad")) {
+            throw new IllegalArgumentException("잘못된 입력 값");
+        }
+        if (id.equals("user-ex")) {
+            throw new UserException("사용자 오류");
+        }
+
+        return new MemberDto(id, "hello " + id);
+    }
+
+    @Data
+    @AllArgsConstructor
+    static class MemberDto {
+        private String memberId;
+        private String name;
+    }
+}

exception/src/main/java/hello/exception/exhandler/ErrorResult.java

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+package hello.exception.exhandler;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class ErrorResult {
+    private String code;
+    private String message;
+}