提交接口数据缓存模型。

@@ -12,3 +12,5 @@ export { HttpUtils } from "./src/main/ets/utils/HttpUtils"
 
 export { HostEnum, HostManager } from "./src/main/ets/http/HttpHostManager"
 
+export { CacheData } from "./src/main/ets/utils/CacheData"
+

+/**
+ * 接口数据存储封装类
+ */
+import { DateTimeUtils, StringUtils } from 'wdKit/Index';
+import { CacheDataSaveUtil } from './CacheDataSaveUtil';
+
+export class CacheData {
+  // 接口返回数据
+  networkData?: object;
+  // 数据更新时间戳
+  updateTimeInMillis: number = 0;
+  // 接口返回md5，用于判断接口数据是否更新
+  md5: string = '';
+
+  constructor(md5: string, timeMillis: number, networkData: object) {
+    this.md5 = md5
+    this.updateTimeInMillis = timeMillis
+    this.networkData = networkData
+  }
+
+  /**
+   * 根据新旧md5值进行判断，是否需要刷新数据
+   * @param responseMd5 新值，接口返回
+   * @returns
+   */
+  needRefreshByMd5(responseMd5: string): boolean {
+    if (StringUtils.isEmpty(this.md5) || StringUtils.isEmpty(responseMd5)) {
+      return false
+    }
+    return this.md5 != responseMd5
+  }
+
+  static saveCacheData(cacheKey: string, data: object, responseMd5: string) {
+    if (!data) {
+      return
+    }
+    let time = DateTimeUtils.getTimeStamp()
+    let cacheData = new CacheData(responseMd5, time, data)
+    CacheDataSaveUtil.save(cacheKey, JSON.stringify(cacheData))
+  }
+
+  /**
+   * 获取缓存数据
+   */
+  static getLocalCacheData(key: string): Promise<CacheData | null> {
+    return new Promise<CacheData | null>((success) => {
+      if (StringUtils.isEmpty(key)) {
+        success(null)
+        return
+      }
+      let ll = CacheDataSaveUtil.get(key)
+      if (ll instanceof Promise) {
+        ll.then((data) => {
+          let str = data as string
+          let cache = JSON.parse(str) as CacheData
+          success(cache)
+        })
+      } else {
+        success(null)
+      }
+    })
+  }
+}
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+import { KVStoreHelper, StringUtils } from 'wdKit/Index';
+
+/**
+ * 接口数据存储工具类
+ */
+export class CacheDataSaveUtil {
+  static save(key: string, value: string) {
+    if (StringUtils.isEmpty(key)) {
+      return
+    }
+    KVStoreHelper.default.put(key, value)
+  }
+
+  static get(key: string) {
+    if (StringUtils.isEmpty(key)) {
+      return ''
+    }
+    return KVStoreHelper.default.get(key, '')
+  }
+}
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