/// <summary>
/// 发布图文消息到微信后台
/// </summary>
/// <param name="domainContext"></param>
/// <param name="args"></param>
/// <returns></returns>
private string AddArticleMaterialToWeixin(DomainContext domainContext, ArticleMaterialEntity args)
{
//向微信后台发送
WeixinAddArticleMaterialArgs weixinArgs = new WeixinAddArticleMaterialArgs();
weixinArgs.ArticleList = new List <WeixinArticleMaterial>();
for (int i = 0; i < args.ArticleList.Count; i++)
{
ArticleMaterialItemEntity item = args.ArticleList[i];
item.Index = i;
//替换其中的图片地址为上传到微信服务器的地址
if (item.ImgMappingList != null)
{
foreach (var imgMappingItem in item.ImgMappingList)
{
if (String.IsNullOrEmpty(imgMappingItem.FileUrl) || String.IsNullOrEmpty(imgMappingItem.WeixinUrl))
{
continue;
}
item.Content =
item.Content.Replace(imgMappingItem.FileUrl, imgMappingItem.WeixinUrl);
}
}
weixinArgs.ArticleList.Add(item);
}
RequestApiResult <WeixinAddArticleMaterialResult> addArticleMaterialResult =
MaterialApiWrapper.AddArticleMaterial(domainContext, weixinArgs);
if (addArticleMaterialResult.Success)
{
//得到图文素材的MediaId
string mediaId = addArticleMaterialResult.ApiResult.MediaId;
args.MediaId = mediaId;
//更新图文素材表中的MediaId字段
List <CommandParameter> parameterList = new List <CommandParameter>();
parameterList.Add(new CommandParameter("@id", args.Id));
parameterList.Add(new CommandParameter("@mediaId", mediaId));
_dataBase.ExecuteNonQuery("UPDATE [ArticleMaterial] SET [MediaId] = @mediaId,[WeixinStatus] = 1 WHERE [Id] = @id",
parameterList);
//因为微信API在添加图文后不返回URL，所以需要通过获取素材接口再次获取以便得到URL
//GetArticleMaterial
RequestApiResult <WeixinArticleMaterialListItemContent> getArticleMaterialResult =
MaterialApiWrapper.GetArticleMaterial(domainContext, mediaId);
if (getArticleMaterialResult.Success)
{
for (int i = 0; i < getArticleMaterialResult.ApiResult.ItemList.Count; i++)
{
WeixinArticleMaterial item = getArticleMaterialResult.ApiResult.ItemList[i];
parameterList = new List <CommandParameter>();
parameterList.Add(new CommandParameter("@articleMaterial", args.Id));
parameterList.Add(new CommandParameter("@index", i));
parameterList.Add(new CommandParameter("@url", item.Url));
_dataBase.ExecuteNonQuery("UPDATE [ArticleMaterialItem] SET [Url] = @url WHERE [ArticleMaterial] = @articleMaterial AND [Index] = @index",
parameterList);
}
_dataBase.ExecuteNonQuery("UPDATE [ArticleMaterial] SET [WeixinStatus] = 2 WHERE [Id] = @articleMaterial",
parameterList);
}
else
{
return(getArticleMaterialResult.Message);
}
}
else
{
return(addArticleMaterialResult.Message);
}
return(null);
}
//WeixinAddArticleMaterialArgs
public static RequestApiResult <WeixinAddArticleMaterialResult> AddArticleMaterial(DomainContext domainContext, WeixinAddArticleMaterialArgs args)
{
string accessToken = domainContext.AccessToken;
RequestApiResult <WeixinAddArticleMaterialResult> result = MaterialApi.AddArticleMaterial(accessToken, args);
if (result.Success == false)
{
if (result.Retry)
{
if (result.ApiError.ErrorCode == 40001)
{
accessToken = AccessTokenGetter.Refresh(domainContext.AppId, accessToken);
}
result = MaterialApi.AddArticleMaterial(accessToken, args);
if (result.Success == false)
{
_log.Write("MaterialApi.AddArticleMaterial 失败",
result.GetDetail(), TraceEventType.Warning);
}
}
else
{
_log.Write("MaterialApi.AddArticleMaterial 失败",
result.GetDetail(), TraceEventType.Warning);
}
}
return(result);
}
