服务器下载文件

以下方法是从pURL路径，下载pURL/pFileName文件至本地pLocalFolderPath

        /// <summary>
        /// 下载文件至本地文件夹
        /// </summary>
        /// <param name="pURL">下载路径</param>
        /// <param name="pFileName">文件名</param>
        /// <param name="pLocalFolderPath">本地文件夹</param>
        /// <returns>本地文件的完整路径</returns>
        public static string DownloadFile(string pURL, string pFileName, string pLocalFolderPath)
        {
            Uri address = new Uri(pURL + pFileName);
            string fileFullName = Path.Combine(pLocalFolderPath, pFileName);
            try
            {
                //如果需要下载的文件包括文件夹名，则检测文件夹是否存在
                if (pFileName.IndexOf('/') > 0)
                {
                    string folderName = fileFullName.Substring(0, fileFullName.LastIndexOf('/'));
                    if (!Directory.Exists(folderName))
                    {
                        Directory.CreateDirectory(folderName);
                    }
                }

                WebRequest request = WebRequest.Create(address);
                //perform the GET request
                using (WebResponse response = request.GetResponse())
                {
                    //get stream containing received data
                    using (Stream receiveStream = response.GetResponseStream())
                    {
                        //去掉目标文件的只读属性
                        FileInfo fileInfo = new FileInfo(fileFullName);
                        if (File.Exists(fileFullName))
                        {
                            fileInfo.Attributes = fileInfo.Attributes & ~FileAttributes.ReadOnly;
                        }
                        //open filestream for the output file
                        using (FileStream fs = fileInfo.Open(FileMode.Create, FileAccess.Write))
                        {
                            //copy until all data is read
                            byte[] buffer = new byte[1024];
                            int bytesRead = receiveStream.Read(buffer, 0, buffer.Length);
                            while (bytesRead > 0)
                            {
                                fs.Write(buffer, 0, bytesRead);
                                bytesRead = receiveStream.Read(buffer, 0, buffer.Length);
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(String.Format("从{0}下载文件时出错，错误消息：{1}", address.ToString(), ex.Message), "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
                throw ex;
            }
            return fileFullName;
        }

 

以下是调用方法

 

 

FileUtility.DownloadFile(LocalConfig.UpdateURL, "Update.xml", Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));

 

LocalConfig.UpdateURL :http://10.10.21.182/TerminalService/AutoUpdate/eFormPC/

Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments): C:\Documents and Settings\Administrator\My Documents  (根据登录的当前用户，此处是Administrator)

 

即：从http://10.10.21.182/TerminalService/AutoUpdate/eFormPC/下载http://10.10.21.182/TerminalService/AutoUpdate/eFormPC/Update.xml至本地C:\Documents and Settings\Administrator\My Documents下。

 

【注】：服务器的同步服务需要设置属性，执行脚本设置为纯脚本