调整结果

backend-java/src/main/java/com/pharmacopoeia/config/GlobalExceptionHandler.java

@@ -1,35 +1,44 @@
 package com.pharmacopoeia.config;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.pharmacopoeia.dto.ApiResponse;
+import jakarta.servlet.http.HttpServletResponse;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.ExceptionHandler;
-import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 
+import java.io.IOException;
+
 @RestControllerAdvice
 public class GlobalExceptionHandler {
 
     private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
+    private static final ObjectMapper mapper = new ObjectMapper();
 
     @ExceptionHandler(IllegalArgumentException.class)
-    @ResponseStatus(HttpStatus.BAD_REQUEST)
-    public ApiResponse<Void> handleBadRequest(IllegalArgumentException e) {
-        return ApiResponse.error(400, e.getMessage());
+    public void handleBadRequest(IllegalArgumentException e, HttpServletResponse response) throws IOException {
+        writeJson(response, HttpStatus.BAD_REQUEST, ApiResponse.error(400, e.getMessage()));
     }
 
     @ExceptionHandler(RuntimeException.class)
-    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
-    public ApiResponse<Void> handleRuntime(RuntimeException e) {
+    public void handleRuntime(RuntimeException e, HttpServletResponse response) throws IOException {
         log.error("Runtime error: {}", e.getMessage(), e);
-        return ApiResponse.error(500, e.getMessage());
+        writeJson(response, HttpStatus.INTERNAL_SERVER_ERROR, ApiResponse.error(500, e.getMessage()));
     }
 
     @ExceptionHandler(Exception.class)
-    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
-    public ApiResponse<Void> handleGeneral(Exception e) {
+    public void handleGeneral(Exception e, HttpServletResponse response) throws IOException {
         log.error("Unexpected error: {}", e.getMessage(), e);
-        return ApiResponse.error(500, "Internal server error");
+        writeJson(response, HttpStatus.INTERNAL_SERVER_ERROR, ApiResponse.error(500, "Internal server error"));
+    }
+
+    private void writeJson(HttpServletResponse response, HttpStatus status, ApiResponse<?> body) throws IOException {
+        response.setStatus(status.value());
+        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
+        response.setCharacterEncoding("UTF-8");
+        mapper.writeValue(response.getWriter(), body);
     }
-}
+}