error data

src/main/java/com/yunhai/bschclassmanage/controller/Handler/ValidationExceptionHandler.java

@@ -1,6 +1,9 @@
 package com.yunhai.bschclassmanage.controller.Handler;
 
+import com.yunhai.platform.utils.exception.DException;
 import com.yunhai.platform.utils.exception.ErrorCode;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageNotReadableException;
@@ -13,9 +16,24 @@ import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.*;
 
+@Order(Ordered.HIGHEST_PRECEDENCE)
 @RestControllerAdvice
 public class ValidationExceptionHandler {
 
+    /**
+     * 兜底 DException：平台 GlobalExceptionHandler 只返回 code/msg，会丢掉 data。
+     * 本项目优先捕获，把业务异常里的 data（如导入错误列表）透传给前端。
+     */
+    @ExceptionHandler(DException.class)
+    public ResponseEntity<Map<String, Object>> handleDException(DException ex) {
+        Map<String, Object> response = new LinkedHashMap<>();
+        response.put("code", ex.getCode() != null ? ex.getCode().getCode() : ErrorCode.CUSTOM.getCode());
+        response.put("msg", ex.getMessage());
+        response.put("data", ex.getData());
+        response.put("timeNow", LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        return new ResponseEntity<>(response, HttpStatus.OK);
+    }
+
     @ExceptionHandler(MethodArgumentNotValidException.class)
     public ResponseEntity<Map<String, Object>> handleValidationExceptions(MethodArgumentNotValidException ex) {
         List<String> msgList = new ArrayList<>();