调整下路由刷新的算法

src/main/java/com/sczx/gateway/component/DynamicRouteScheduler.java

@@ -19,7 +19,7 @@ public class DynamicRouteScheduler {
     private DiscoveryClient discoveryClient;
 
     // 延迟5秒后开始执行，避免与启动时的自动刷新冲突，每30秒刷新一次路由（可按需调整）
-    @Scheduled(fixedRate = 30_000, initialDelay = 5_000)
+    @Scheduled(fixedRate = 60_000, initialDelay = 10_000)
     public void refreshRoutes() {
         log.info("refreshRoutes");
         publisher.publishEvent(new RefreshRoutesEvent(this));

src/main/java/com/sczx/gateway/config/DynamicRouteConfig.java

@@ -44,6 +44,7 @@ public class DynamicRouteConfig implements RouteDefinitionLocator {
     @Override
     public Flux<RouteDefinition> getRouteDefinitions() {
         long currentTime = System.currentTimeMillis();
+        try{
             long lastTime = lastRefreshTime.get();
 
             // 防抖处理：如果距离上次刷新时间太短，则不处理
@@ -85,6 +86,11 @@ public class DynamicRouteConfig implements RouteDefinitionLocator {
             }
             log.info("路由加载完成，共加载 {} 个路由定义", routeDefinitions.size());
             return Flux.fromIterable(routeDefinitions);
+        }catch (Exception e){
+            log.error("路由加载失败", e);
+        }
+        return null;
+
     }
 
     /**
@@ -114,8 +120,8 @@ public class DynamicRouteConfig implements RouteDefinitionLocator {
             log.warn("No available instances for service: {}, returning default URI", serviceName);
             return URI.create("http://localhost");
         }
-
-        ServiceInstance selected = instances.get(Math.abs(index.getAndIncrement()) % instances.size());
+        int idx = index.getAndIncrement() & Integer.MAX_VALUE;
+        ServiceInstance selected = instances.get(idx % instances.size());
         log.info("Selected instance: {}", selected);
         return URI.create("http://" + selected.getHost() + ":" + selected.getPort());
     }