同步文件的做法

来源：互联网发布：淘宝复制别人店铺模板编辑：程序博客网时间：2024/05/17 04:39

所有的逻辑都是在wcf处理的

所以文件保存也是在wcf端

同步也就是说将wcf保存的文件复制到webUI下面

代码：

 /// <summary>        /// 文件同步        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void bbi_sync_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)        {            try            {                string[] fileNames = { };                string sourceFiles = InvokeToWCF.ClientInvokeToServerBLL(               "FilesManagerBLL", "GetAllFile", "GET");                fileNames = sourceFiles.Split(',');                WebClient toHandler = new WebClient();                StringBuilder sb = new StringBuilder();                //string files = string.Join(",", fileNames);                sb.Append("Type=Sync");                sb.Append("&FileNames=" + sourceFiles);                byte[] bytes = Encoding.UTF8.GetBytes(sb.ToString());                toHandler.Headers.Add("Content-Type", "application/x-www-form-urlencoded");                toHandler.Headers.Add("ContentLength", bytes.Length.ToString());                byte[] returndata = toHandler.UploadData("http://localhost:3395/Test/DownloadHandler.ashx", "POST", bytes);                string strcheck = Encoding.UTF8.GetString(returndata);                string[] strchecks = strcheck.Split('|');                if (strchecks[0] == "Sync Complete" && strchecks[1] == string.Empty)                {                    MessBox.MessBoxInfo("同步完成！");                }                else if (strchecks[0] == "Sync Complete" && strchecks[1] != string.Empty)                {                    MessBox.MessBoxInfo("同步完成！\n但是缺失了文件：\n" + strchecks[1].ToString());                }            }            catch (Exception ex)            {                MessBox.MsgBoxErr(ex);            }        }

DownloadHandler.ashx代码

public void ProcessRequest(HttpContext context)        {            string type = context.Request["Type"];            // 同步文件            if (type == "Sync")            {                string files = context.Request["FileNames"];                SyncFiles(files, context);            }            else if (type == "save")            {                string _context = context.Request["content"].ToString().Trim().Replace("%2B", "+");                string file = context.Request["file"];                string _path = context.Server.MapPath("~/Upload/") + file.Replace('/', '\\');                WriteFile(_path, _context, context);            }        }        /// <summary>        /// 同步文件        /// </summary>        public void SyncFiles(string _files, HttpContext _context)        {            string sourceCode = InvokeToWCF.ClientInvokeToServerBLL(                "FilesManagerBLL", "DownloadAllFiles", "GET", _files);            JObject jobj = JObject.Parse(sourceCode);            string[] fileNames = _files.Split(',');            string path = AppDomain.CurrentDomain.BaseDirectory;            for (int i = 0; i < fileNames.Length; i++)            {                string key = fileNames[i];                if (jobj[key] != null)                {                    string fullpath = path + fileNames[i].Replace('/', '\\');                    using (FileStream fs = new FileStream(fullpath, FileMode.OpenOrCreate, FileAccess.Write))                    {                        byte[] info = System.Convert.FromBase64String(jobj[key].ToString());                        fs.Write(info, 0, info.Length);                        fs.Close();                    }                }            }            string loseFiles = jobj["loseFiles"].ToString();            _context.Response.Write("Sync Complete|" + loseFiles);        }        /// <summary>        /// 写文件        /// </summary>        /// <param name="path">文件路径</param>        /// <param name="context">内容</param>        public static void WriteFile(string _path, string _context, HttpContext context)        {            try            {                using (FileStream fs = new FileStream(_path, FileMode.OpenOrCreate, FileAccess.Write))                {                    byte[] info = Convert.FromBase64String(_context);                    fs.Write(info, 0, info.Length);                    fs.Close();                }                context.Response.Write("save complete");            }            catch (Exception)            {                throw;            }        }

逻辑层代码

FileManageBll class

#region 成员变量        //ISTA_DOC_FILE        private ISTA_DOC_FILE ista_doc_file { get; set; }        #endregion        #region 构造函数        public FilesManagerBLL(ISTA_DOC_FILE ista_doc_file)        {            this.ista_doc_file = ista_doc_file;        }        #endregion        /// <summary>        /// 下载文件        /// </summary>        /// <param name="fileName">文件名</param>        public string DownloadFile(string fileName)        {            try            {                string path = AppDomain.CurrentDomain.BaseDirectory;                // 宿主程序集名                // string hostAssemblyName = "EPS.Budget.WCF.Host";                // .Remove(path.IndexOf(hostAssemblyName)) + hostAssemblyName                path = path + "Files\\" + fileName;                return ReadFile(path);            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }        /// <summary>        /// 下载文件        /// </summary>        /// <param name="fileName">文件名</param>        public string DownloadFileByPath(string _fileName, string _path)        {            try            {                string path = AppDomain.CurrentDomain.BaseDirectory;                path = path + _path + _fileName;                return ReadFile(path);            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }        /// <summary>        /// 读文件        /// </summary>        /// <param name="path">文件路径</param>        /// <returns></returns>        public static string ReadFile(string path)        {            try            {                string strFile = "";                using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))                {                    byte[] b = new byte[fs.Length];                    fs.Read(b, 0, b.Length);                    strFile = System.Convert.ToBase64String(b);                    fs.Close();                }                return strFile;            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }        /// <summary>        /// 写文件        /// </summary>        /// <param name="_name"></param>        /// <param name="_context"></param>        public void SaveFile(string _fileName, string _context, string _path)        {            try            {                string path = AppDomain.CurrentDomain.BaseDirectory;                path = path + "Upload\\" + _path + "\\" + _fileName;                using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))                {                    byte[] info = Convert.FromBase64String(_context);                    fs.Write(info, 0, info.Length);                    fs.Close();                }            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }        /// <summary>        /// 下载所有文件        /// </summary>        /// <returns></returns>        public string DownloadAllFiles(string _files)        {            try            {                JObject jobj = new JObject();                string[] fileNames = _files.Split(',');                string path = AppDomain.CurrentDomain.BaseDirectory;                StringBuilder loseFileName = new StringBuilder();                for (int i = 0; i < fileNames.Length; i++)                {                    string fullpath = path + fileNames[i].Replace('/', '\\');                    if (File.Exists(fullpath))                    {                        string stream = ReadFile(fullpath);                        jobj.Add(new JProperty(fileNames[i], stream));                    }                    else                    {                        loseFileName.Append(fileNames[i]).Append("\n");//.Append(",");                    }                }                jobj.Add(new JProperty("loseFiles", loseFileName.Remove(loseFileName.ToString().Length - 1, 1).ToString()));                return jobj.ToString();            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }        /// <summary>        /// 下载所有文件        /// </summary>        /// <returns></returns>        public string GetAllFile()        {            try            {                StringBuilder sb = new StringBuilder();                List<STA_DOC_FILEInfo> list = ista_doc_file.GetAll();                foreach (STA_DOC_FILEInfo item in list)                {                    sb.Append(item.FILELJ + item.FILEBH + item.FILEMC + item.FILEEX).Append(",");                }                sb.Remove((sb.ToString()).Length - 1, 1);                return sb.ToString();            }            catch (Exception ex)            {                throw new Exception("业务逻辑层错误", ex);            }        }

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