Winfrom上传下载文件

以下程序在.NET2005，系统XP中测试通过： using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows.Forms;using System.Net;using System.IO; namespace TQSystem.Com{    class UpDownLoadFile    {         ///<summary>        /// WebClient上传文件至服务器（不带进度条）       /// </summary>        /// <paramname="fileNameFullPath">要上传的文件（全路径格式）</param>        /// <paramname="strUrlDirPath">Web服务器文件夹路径</param>        ///<returns>True/False是否上传成功</returns>        public bool UpLoadFile(stringfileNameFullPath, string strUrlDirPath)        {           //得到要上传的文件文件名           string fileName =fileNameFullPath.Substring(fileNameFullPath.LastIndexOf("\\") 1);           //新文件名由年月日时分秒及毫秒组成           string NewFileName = DateTime.Now.ToString("yyyyMMddhhmmss")                                        DateTime.Now.Millisecond.ToString()                                        fileNameFullPath.Substring(fileNameFullPath.LastIndexOf("."));           //得到文件扩展名           string fileNameExt =fileName.Substring(fileName.LastIndexOf(".") 1);           if (strUrlDirPath.EndsWith("/") == false) strUrlDirPath =strUrlDirPath "/";           //保存在服务器上时，将文件改名（示业务需要）           strUrlDirPath = strUrlDirPath NewFileName;           // 创建WebClient实例           WebClient myWebClient = new WebClient();           myWebClient.Credentials = CredentialCache.DefaultCredentials;           // 将要上传的文件打开读进文件流           FileStream myFileStream = new FileStream(fileNameFullPath, FileMode.Open,FileAccess.Read);           BinaryReader myBinaryReader = new BinaryReader(myFileStream);           try           {               byte[] postArray = myBinaryReader.ReadBytes((int)myFileStream.Length);               //打开远程Web地址，将文件流写入               Stream postStream = myWebClient.OpenWrite(strUrlDirPath, "PUT");               if (postStream.CanWrite)               {                   postStream.Write(postArray, 0, postArray.Length);               }               else               {                   //MessageBox.Show("Web服务器文件目前不可写入，请检查Web服务器目录权限设置！","系统提示",MessageBoxButtons.OK,MessageBoxIcon.Information);               }               postStream.Close();//关闭流               return true;           }           catch (Exceptionexp)           {               //MessageBox.Show("文件上传失败：" exp.Message,"系统提示", MessageBoxButtons.OK,MessageBoxIcon.Information);               return false;           }        }         ///<summary>       /// 下载服务器文件至客户端（不带进度条）        ///</summary>        /// <paramname="strUrlFilePath">要下载的Web服务器上的文件地址（全路径　如：http://www.dzbsoft.com/test.rar）</param>        /// <paramname="Dir">下载到的目录（存放位置，机地机器文件夹）</param>        ///<returns>True/False是否上传成功</returns>        public boolDownLoadFile(string strUrlFilePath, string strLocalDirPath)        {           // 创建WebClient实例           WebClient client = new WebClient();           //被下载的文件名           string fileName = strUrlFilePath.Substring(strUrlFilePath.LastIndexOf("/"));           //另存为的绝对路径＋文件名           string Path = strLocalDirPath fileName;           try           {               WebRequest myWebRequest = WebRequest.Create(strUrlFilePath);           }           catch (Exception exp)           {               MessageBox.Show("文件下载失败：" exp.Message,"系统提示", MessageBoxButtons.OK,MessageBoxIcon.Information);           }           try           {               client.DownloadFile(strUrlFilePath, Path);               return true;           }           catch (Exception exp)           {               MessageBox.Show("文件下载失败：" exp.Message,"系统提示", MessageBoxButtons.OK,MessageBoxIcon.Information);               return false;           }        }          ///<summary>       /// 下载带进度条代码（普通进度条）        ///</summary>       /// <param name="URL">网址</param>        /// <paramname="Filename">文件名</param>        /// <paramname="Prog">普通进度条ProgressBar</param>        ///<returns>True/False是否下载成功</returns>        public boolDownLoadFile(string URL, string Filename, ProgressBar Prog)        {           try           {               System.Net.HttpWebRequest Myrq =(System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(URL); //从URL地址得到一个WEB请求                  System.Net.HttpWebResponse myrp =(System.Net.HttpWebResponse)Myrq.GetResponse(); //从WEB请求得到WEB响应                  long totalBytes = myrp.ContentLength; //从WEB响应得到总字节数                  Prog.Maximum = (int)totalBytes; //从总字节数得到进度条的最大值                  System.IO.Stream st = myrp.GetResponseStream(); //从WEB请求创建流（读）                  System.IO.Stream so = new System.IO.FileStream(Filename,System.IO.FileMode.Create); //创建文件流（写）                  long totalDownloadedByte = 0; //下载文件大小                  byte[] by = new byte[1024];               int osize = st.Read(by, 0, (int)by.Length); //读流                  while (osize > 0)               {                   totalDownloadedByte= osize totalDownloadedByte; //更新文件大小                      Application.DoEvents();                   so.Write(by, 0, osize); //写流                      Prog.Value = (int)totalDownloadedByte; //更新进度条                      osize = st.Read(by, 0,(int)by.Length); //读流                  }               so.Close(); //关闭流               st.Close(); //关闭流               return true;           }           catch           {               return false;           }        }          ///<summary>       /// 下载带进度条代码(状态栏式进度条）        ///</summary>       /// <param name="URL">网址</param>        /// <paramname="Filename">文件名</param>        /// <paramname="Prog">状态栏式进度条ToolStripProgressBar</param>        ///<returns>True/False是否下载成功</returns>        public boolDownLoadFile(string URL, string Filename, ToolStripProgressBar Prog)        {           try           {               System.Net.HttpWebRequest Myrq =(System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(URL); //从URL地址得到一个WEB请求                  System.Net.HttpWebResponse myrp = (System.Net.HttpWebResponse)Myrq.GetResponse();//从WEB请求得到WEB响应                  long totalBytes = myrp.ContentLength; //从WEB响应得到总字节数                  Prog.Maximum= (int)totalBytes; //从总字节数得到进度条的最大值                  System.IO.Stream st = myrp.GetResponseStream(); //从WEB请求创建流（读）                  System.IO.Stream so = new System.IO.FileStream(Filename,System.IO.FileMode.Create); //创建文件流（写）                  long totalDownloadedByte = 0; //下载文件大小                  byte[] by = new byte[1024];               int osize = st.Read(by, 0, (int)by.Length); //读流                  while (osize > 0)               {                   totalDownloadedByte = osize totalDownloadedByte; //更新文件大小                      Application.DoEvents();                   so.Write(by, 0, osize); //写流                      Prog.Value = (int)totalDownloadedByte; //更新进度条                      osize = st.Read(by, 0, (int)by.Length); //读流                  }               so.Close(); //关闭流                  st.Close(); //关闭流                  return true;           }           catch           {               return false;           }         }     }}