创建临时文件 - CreateTempOutputFile

2017-02-26 20:19:39 访问(1353) 赞(0) 踩(0)



        /// <summary>
        /// 创建临时文件 - CreateTempOutputFile
        /// </summary>
        /// <param name="fileName"></param>
        /// <param name="extension"></param>
        /// <returns></returns>
        public string CreateTempOutputFile(string fileName, string extension)
        {
            StringBuilder theResult = new StringBuilder();

            DateTime dtNow = DateTime.Now;

            theResult.Append("WebFiles/OutputFiles/TempFiles/");
            theResult.Append(dtNow.Year.ToString() + "/" + dtNow.Month.ToString() + "/" + dtNow.Day.ToString() + "/");

            string guidValue = System.Guid.NewGuid().ToString("N");

            int iLen = guidValue.Length;

            if (iLen > 16)
                theResult.Append(guidValue.Substring(0, 16) + "/" + guidValue.Substring(16) + "/");
            else
                theResult.Append(guidValue + "/");

            if (fileName == null || fileName.Length == 0 || fileName.Trim().Length == 0)
                fileName = dtNow.ToString("yyyyMMddHHmmss");
            else
                fileName = fileName.Trim();

            theResult.Append(fileName);

            if (!(extension == null || extension.Length == 0 || extension.Trim().Length == 0))
                theResult.Append("." + extension);

            return theResult.ToString();
        }