feat: 存储了

nkebao/src/api/utils.ts

@@ -97,4 +97,68 @@ export const isTokenExpired = (): boolean => {
     console.error('解析token过期时间失败:', error);
     return true;
   }
-}; 
+};
+
+// 请求去重器
+class RequestDeduplicator {
+  private pendingRequests = new Map<string, Promise<any>>();
+
+  async deduplicate<T>(key: string, requestFn: () => Promise<T>): Promise<T> {
+    if (this.pendingRequests.has(key)) {
+      return this.pendingRequests.get(key)!;
+    }
+
+    const promise = requestFn();
+    this.pendingRequests.set(key, promise);
+
+    try {
+      const result = await promise;
+      return result;
+    } finally {
+      this.pendingRequests.delete(key);
+    }
+  }
+
+  getPendingCount(): number {
+    return this.pendingRequests.size;
+  }
+
+  clear(): void {
+    this.pendingRequests.clear();
+  }
+}
+
+// 请求取消管理器
+class RequestCancelManager {
+  private abortControllers = new Map<string, AbortController>();
+
+  createController(key: string): AbortController {
+    // 取消之前的请求
+    this.cancelRequest(key);
+    
+    const controller = new AbortController();
+    this.abortControllers.set(key, controller);
+    return controller;
+  }
+
+  cancelRequest(key: string): void {
+    const controller = this.abortControllers.get(key);
+    if (controller) {
+      controller.abort();
+      this.abortControllers.delete(key);
+    }
+  }
+
+  cancelAllRequests(): void {
+    this.abortControllers.forEach(controller => controller.abort());
+    this.abortControllers.clear();
+  }
+
+  getController(key: string): AbortController | undefined {
+    return this.abortControllers.get(key);
+  }
+}
+
+// 导出单例实例
+export const requestDeduplicator = new RequestDeduplicator();
+export const requestCancelManager = new RequestCancelManager();