コード例 #1
0
        /// <summary>
        ///     下载媒体文件。
        ///     如果下载成功,返回值的ErrMsg属性携带保存的文件全路径
        /// </summary>
        /// <param name="mediaId"></param>
        /// <param name="filePath">
        ///     保存下载的文件的本地文件名或目录(以\结尾)。
        ///     如果为目录,则文件名为微信响应的文件名。
        ///     如果文件已经存在,则会覆盖原文件。
        /// </param>
        /// <returns>如果成功,ErrMsg属性携带保存的文件全路径</returns>
        public BasicResult Download(string mediaId, string filePath)
        {
            var param = new FormData
            {
                { "access_token", AccessToken },
                { "media_id", mediaId }
            };

            var url      = string.Format("{0}?{1}", DownLoadUrl, param.Format());
            var request  = HttpHelper.CreateRequest(url);
            var response = request.GetResponse();

            using (var stream = response.GetResponseStream())
            {
                var disposition = response.Headers["Content-disposition"];
                if (string.IsNullOrEmpty(disposition))
                {
                    var s = new StreamReader(stream, Encoding.UTF8).ReadToEnd();
                    return(JsonConvert.DeserializeObject <BasicResult>(s));
                }

                filePath = filePath.EndsWith(@"\")
                    ? string.Format("{0}{1}", filePath,
                                    Regex.Match(disposition, "(?<=filename\\s*=\\s*\\\"?)[^\\\"]+", RegexOptions.IgnoreCase))
                    : filePath;
                var fs = new FileStream(filePath, FileMode.OpenOrCreate);
                try
                {
                    var buffer = new byte[128 * 1024]; //128K
                    int i;
                    while ((i = stream.Read(buffer, 0, buffer.Length)) > 0)
                    {
                        fs.Write(buffer, 0, i);
                    }

                    return(BasicResult.GetSuccess(filePath));
                }
                finally
                {
                    fs.Close();
                }
            }
        }
コード例 #2
0
        /// <summary>
        ///     下载媒体文件。
        ///     如果下载成功,返回值的ErrMsg属性携带保存的文件全路径
        /// </summary>
        /// <param name="mediaId"></param>
        /// <param name="filePath">
        ///     保存下载的文件的本地文件名或目录(以\结尾)。
        ///     如果为目录,则文件名为微信响应的文件名。
        ///     如果文件已经存在,则会覆盖原文件。
        /// </param>
        /// <returns>如果成功,ErrMsg属性携带保存的文件全路径</returns>
        public BasicResult Download(string mediaId, string filePath)
        {
            var param = new FormData
            {
                {"access_token", AccessToken},
                {"media_id", mediaId}
            };

            var url = string.Format("{0}?{1}", DownLoadUrl, param.Format());
            var request = HttpHelper.CreateRequest(url);
            var response = request.GetResponse();
            using (var stream = response.GetResponseStream())
            {
                var disposition = response.Headers["Content-disposition"];
                if (string.IsNullOrEmpty(disposition))
                {
                    var s = new StreamReader(stream, Encoding.UTF8).ReadToEnd();
                    return JsonConvert.DeserializeObject<BasicResult>(s);
                }

                filePath = filePath.EndsWith(@"\")
                    ? string.Format("{0}{1}", filePath,
                        Regex.Match(disposition, "(?<=filename\\s*=\\s*\\\"?)[^\\\"]+", RegexOptions.IgnoreCase))
                    : filePath;
                var fs = new FileStream(filePath, FileMode.OpenOrCreate);
                try
                {
                    var buffer = new byte[128*1024]; //128K
                    int i;
                    while ((i = stream.Read(buffer, 0, buffer.Length)) > 0)
                    {
                        fs.Write(buffer, 0, i);
                    }

                    return BasicResult.GetSuccess(filePath);
                }
                finally
                {
                    fs.Close();
                }
            }
        }