qqq

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

@@ -3,6 +3,8 @@ package com.yunhai.bschclassmanage.controller.Handler;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.HttpMediaTypeNotSupportedException;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
@@ -30,4 +32,31 @@ public class ValidationExceptionHandler {
 
         return new ResponseEntity(response, HttpStatus.BAD_REQUEST);
     }
+
+    /**
+     * @RequestBody 反序列化失败（JSON 格式错 / 字段类型不符 / 未知字段被拒）。
+     * 不捕获会被平台兜底成 code:6 / 内部服务错误，这里把真实原因透出来。
+     */
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseEntity<Map<String, Object>> handleNotReadable(HttpMessageNotReadableException ex) {
+        Map<String, Object> response = new LinkedHashMap<>();
+        response.put("code", ErrorCode.ERROR.getCode());
+        response.put("msg", "请求体(JSON)解析失败: " + (ex.getRootCause() != null ? ex.getRootCause().getMessage() : ex.getMessage()));
+        response.put("data", null);
+        response.put("timeNow", LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        return new ResponseEntity(response, HttpStatus.BAD_REQUEST);
+    }
+
+    /**
+     * Content-Type 不是 application/json（如 text/plain、form 表单、缺省），@RequestBody 无法选择转换器。
+     */
+    @ExceptionHandler(HttpMediaTypeNotSupportedException.class)
+    public ResponseEntity<Map<String, Object>> handleMediaType(HttpMediaTypeNotSupportedException ex) {
+        Map<String, Object> response = new LinkedHashMap<>();
+        response.put("code", ErrorCode.ERROR.getCode());
+        response.put("msg", "请求 Content-Type 不被支持: " + ex.getMessage());
+        response.put("data", null);
+        response.put("timeNow", LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        return new ResponseEntity(response, HttpStatus.BAD_REQUEST);
+    }
 }