perf: 优化错误提示

src/main/java/com/xydl/cac/exception/GlobalExceptionHandler.java

@@ -2,6 +2,8 @@ package com.xydl.cac.exception;
 
 import com.xydl.cac.model.Response;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.core.NestedExceptionUtils;
+import org.springframework.http.converter.HttpMessageConversionException;
 import org.springframework.validation.FieldError;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
@@ -21,10 +23,16 @@ public class GlobalExceptionHandler {
         return Response.fail(message);
     }
 
+    @ExceptionHandler(HttpMessageConversionException.class)
+    public Response<String> handleValidationExceptions(HttpMessageConversionException ex) {
+        String message = "类型转换异常：" + ex.getRootCause().getLocalizedMessage();
+        return Response.fail(message);
+    }
+
     @ExceptionHandler(Exception.class)
     public Response<String> handleException(Exception ex) {
         log.error("", ex);
-        String message = ex.getMessage();
+        String message = NestedExceptionUtils.getRootCause(ex).getLocalizedMessage();
         return Response.fail(message);
     }
 }