getCache method
获取缓存
Implementation
Future<HttpCacheObj?>? getCache(String cacheKey) async {
try {
var map = await _database
?.query("HttpCacheObj", where: "cacheKey = ?", whereArgs: [cacheKey]);
Map<String, dynamic>? cacheMap = map?.firstOrNull;
if (cacheMap != null) {
return HttpCacheObj(cacheMap["cacheKey"], cacheMap["cacheValue"],
cacheMap["expireTime"]);
}
} catch (e) {
return null;
}
return null;
}