diff --git a/src/main/java/com/sczx/gateway/filter/LoggingGlobalFilter.java b/src/main/java/com/sczx/gateway/filter/LoggingGlobalFilter.java
index 975ce51..b019a85 100644
--- a/src/main/java/com/sczx/gateway/filter/LoggingGlobalFilter.java
+++ b/src/main/java/com/sczx/gateway/filter/LoggingGlobalFilter.java
@@ -27,71 +27,18 @@ import java.nio.charset.StandardCharsets;
 @Slf4j
 @Component
 public class LoggingGlobalFilter implements GlobalFilter, Ordered {
-
     @Override
     public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
-        // 创建一个同时装饰 request 和 response 的 exchange
-        ServerWebExchange decoratedExchange = new ServerWebExchangeDecorator(exchange) {
-
-            private final StringBuilder requestBody = new StringBuilder();
-            private final StringBuilder responseBody = new StringBuilder();
-
-            @Override
-            public ServerHttpRequest getRequest() {
-                return new ServerHttpRequestDecorator(super.getRequest()) {
-                    @Override
-                    public Flux<DataBuffer> getBody() {
-                        return super.getBody().map(buffer -> {
-                            byte[] bytes = new byte[buffer.readableByteCount()];
-                            buffer.read(bytes);
-                            String chunk = new String(bytes, StandardCharsets.UTF_8);
-                            requestBody.append(chunk);
-                            DataBufferUtils.release(buffer);
-                            return buffer.factory().wrap(bytes);
-                        });
-                    }
-                };
-            }
-
-            @Override
-            public ServerHttpResponse getResponse() {
-                return new ServerHttpResponseDecorator(super.getResponse()) {
-                    @Override
-                    public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
-                        if (body instanceof Flux) {
-                            Flux<? extends DataBuffer> fluxBody = (Flux<? extends DataBuffer>) body;
-                            return super.writeWith(fluxBody.map(buffer -> {
-                                byte[] content = new byte[buffer.readableByteCount()];
-                                buffer.read(content);
-                                DataBufferUtils.release(buffer);
-
-                                String responseStr = new String(content, StandardCharsets.UTF_8);
-                                responseBody.append(responseStr);
-
-                                return buffer.factory().wrap(content);
-                            }));
-                        }
-                        return super.writeWith(body);
-                    }
-                };
-            }
-
-            public String getRequestBody() {
-                return requestBody.toString();
-            }
-
-            public String getResponseBody() {
-                return responseBody.toString();
-            }
-        };
+        // 创建自定义 exchange 装饰器
+        CustomExchange decoratedExchange = new CustomExchange(exchange);
 
         return chain.filter(decoratedExchange)
                 .then(Mono.fromRunnable(() -> {
                     log.info("🌐 请求路径: {}", exchange.getRequest().getPath());
                     log.info("📥 请求头: {}", exchange.getRequest().getHeaders());
-                    log.info("📥 请求体: {}", ((CustomExchange) decoratedExchange).getRequestBody());
+                    log.info("📥 请求体: {}", decoratedExchange.getRequestBody());
                     log.info("🔚 响应状态: {}", exchange.getResponse().getStatusCode());
-                    log.info("📤 响应内容: {}", ((CustomExchange) decoratedExchange).getResponseBody());
+                    log.info("📤 响应内容: {}", decoratedExchange.getResponseBody());
                 }));
     }
 
@@ -100,8 +47,73 @@ public class LoggingGlobalFilter implements GlobalFilter, Ordered {
         return Ordered.LOWEST_PRECEDENCE; // 最后执行
     }
 
-    // 自定义接口用于获取 body 内容
-    private interface CustomExchange extends ServerWebExchange {
+    /**
+     * 自定义装饰器，实现 ServerWebExchange 并扩展 body 记录功能
+     */
+    private static class CustomExchange extends ServerWebExchangeDecorator implements CustomExchangeInterface {
+
+        private final StringBuilder requestBody = new StringBuilder();
+        private final StringBuilder responseBody = new StringBuilder();
+
+        public CustomExchange(ServerWebExchange delegate) {
+            super(delegate);
+        }
+
+        @Override
+        public ServerHttpRequest getRequest() {
+            return new ServerHttpRequestDecorator(super.getRequest()) {
+                @Override
+                public Flux<DataBuffer> getBody() {
+                    return super.getBody().map(buffer -> {
+                        byte[] bytes = new byte[buffer.readableByteCount()];
+                        buffer.read(bytes);
+                        String chunk = new String(bytes, StandardCharsets.UTF_8);
+                        requestBody.append(chunk);
+                        DataBufferUtils.release(buffer);
+                        return buffer.factory().wrap(bytes);
+                    });
+                }
+            };
+        }
+
+        @Override
+        public ServerHttpResponse getResponse() {
+            return new ServerHttpResponseDecorator(super.getResponse()) {
+                @Override
+                public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
+                    if (body instanceof Flux) {
+                        Flux<? extends DataBuffer> fluxBody = (Flux<? extends DataBuffer>) body;
+                        return super.writeWith(fluxBody.map(buffer -> {
+                            byte[] content = new byte[buffer.readableByteCount()];
+                            buffer.read(content);
+                            DataBufferUtils.release(buffer);
+
+                            String responseStr = new String(content, StandardCharsets.UTF_8);
+                            responseBody.append(responseStr);
+
+                            return buffer.factory().wrap(content);
+                        }));
+                    }
+                    return super.writeWith(body);
+                }
+            };
+        }
+
+        @Override
+        public String getRequestBody() {
+            return requestBody.toString();
+        }
+
+        @Override
+        public String getResponseBody() {
+            return responseBody.toString();
+        }
+    }
+
+    /**
+     * 扩展接口，提供获取 body 的方法
+     */
+    private interface CustomExchangeInterface extends ServerWebExchange {
         String getRequestBody();
         String getResponseBody();
     }