diff --git a/ebike-gateway/src/main/java/com/cdzy/gateway/GatewayExceptionHandler.java b/ebike-gateway/src/main/java/com/cdzy/gateway/GatewayExceptionHandler.java
index f1f092a..ec5d5c4 100644
--- a/ebike-gateway/src/main/java/com/cdzy/gateway/GatewayExceptionHandler.java
+++ b/ebike-gateway/src/main/java/com/cdzy/gateway/GatewayExceptionHandler.java
@@ -33,7 +33,7 @@ public class GatewayExceptionHandler implements ErrorWebExceptionHandler {
 
     @NotNull
     @Override
-    public Mono<Void> handle(ServerWebExchange exchange, Throwable ex) {
+    public Mono<Void> handle(ServerWebExchange exchange, @NotNull Throwable ex) {
         ServerHttpResponse response = exchange.getResponse();
 
         if (exchange.getResponse().isCommitted()) {