/// <summary> /// 获取永久素材,返回ArticleItemsInfo、VideoMaterialResult或fileName /// </summary> /// <param name="mediaId">永久素材的媒体文件ID</param> /// <param name="filePathName">指定个临时包含路径的文件名</param> /// <returns>图文素材请解析为ArticleItemsInfo,视频素材请解析为VideoMaterialResult,其他素材为实际保存好的包含路径的文件名</returns> public WeChatResult <string> GetMaterial(string mediaId, string filePathName) { string accessToken = connect.GetAccessToken(); string url = $"https://api.weixin.qq.com/cgi-bin/material/get_material?access_token={accessToken}"; try { string fileName = SimulateRequest.DownloadFilePost(url, filePathName, new { media_id = mediaId }); WeChatResult <string> weChatResult = new WeChatResult <string>("{\"errcode\":0,\"errmsg\":\"SUCCESS\"}"); weChatResult.resultData = fileName; return(weChatResult); } catch (Exception ex) { SystemLogHelper.Error(MethodBase.GetCurrentMethod(), $"获取永久素材GetMaterial,报错", ex); WeChatResult <string> errorResult = new WeChatResult <string>(ex.Message); return(errorResult); } }