feat: 数据库sql执行支持取消执行操作

mayfly_go_web/src/common/Api.ts

@@ -1,4 +1,5 @@
 import request from './request';
+import { randomUuid } from './utils/string';
 
 /**
  * 可用于各模块定义各自api请求
@@ -20,6 +21,8 @@ class Api {
      */
     beforeHandler: Function;
 
+    static abortControllers: Map<string, AbortController> = new Map();
+
     constructor(url: string, method: string) {
         this.url = url;
         this.method = method;
@@ -53,8 +56,63 @@ class Api {
         return request.request(this.method, this.url, param, headers, options);
     }
 
+    /**
+     * 请求对应的该api
+     * @param {Object} param 请求该api的参数
+     */
+    requestCanCancel(key: string, param: any = null, options: any = null, headers: any = null): Promise<any> {
+        let controller = Api.abortControllers.get(key);
+        if (!controller) {
+            controller = new AbortController();
+            Api.abortControllers.set(key, controller);
+        }
+        if (options) {
+            options.signal = controller.signal;
+        } else {
+            options = {
+                signal: controller.signal,
+            };
+        }
+
+        return this.request(param, options, headers);
+    }
+
     /**    静态方法     **/
 
+    /**
+     * 取消请求
+     * @param key 请求key
+     */
+    static cancelReq(key: string) {
+        let controller = Api.abortControllers.get(key);
+        if (controller) {
+            controller.abort();
+            Api.removeAbortKey(key);
+        }
+    }
+
+    static removeAbortKey(key: string) {
+        if (key) {
+            console.log('remove abort key: ', key);
+            Api.abortControllers.delete(key);
+        }
+    }
+
+    /**
+     * 根据旧key生成新的abort key，可能旧key未取消，造成多余无用对象
+     * @param oldKey 旧key
+     * @returns key
+     */
+    static genAbortKey(oldKey: string) {
+        if (!oldKey) {
+            return randomUuid();
+        }
+        if (Api.abortControllers.get(oldKey)) {
+            return oldKey;
+        }
+        return randomUuid();
+    }
+
     /**
      * 静态工厂，返回Api对象，并设置url与method属性
      * @param url url