HarmonyOS 鸿蒙Next connection.getAllNetsSync() 在明确已经声明权限的情况下提示权限拒绝

我在项目中需要使用 connection.getAllNetsSync()判断当前可用网络，已经在Entry的module.json5中声明了权限ohos.permission.GET_NETWORK_INFO，但是仍然抛出异常201- Permission denied.  

“name”:
“ohos.permission.GET_NETWORK_INFO”, “reason”:
“$string:reason”, “usedScene”:
{
“abilities”: [
“EntryFormAbility” ],
“when”:
“inuse”
}
/** * 判断当前是否存在可用网络 * netId: *  101 - wifi *  102 - 蜂窝网 * @returns */
public isNetworkEnable():boolean
{
try {
let nets = connection.getAllNetsSync();
return nets !== undefined && nets.length > 0;
} catch (e) {
Log.error('isNetworkEnable error ’ + JSON.stringify(e))
return false;
}
}