using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.IO;namespace The9web.Com
{class UpDownLoadFile{/// <summary>/// WebClient上传文件至服务器（不带进度条）/// </summary>/// <param name="fileNameFullPath">要上传的文件（全路径格式）</param>/// <param name="strUrlDirPath">Web服务器文件夹路径</param>/// <returns>True/False是否上传成功</returns>public bool UpLoadFile(string fileNameFullPath, 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 (Exception exp){//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>/// <param name="strUrlFilePath">要下载的Web服务器上的文件地址（全路径　如：http://www.the9web.com/test.rar）</param>/// <param name="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 bool DownLoadFile(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>/// <param name="Filename">文件名</param>/// <param name="Prog">普通进度条ProgressBar</param>/// <returns>True/False是否下载成功</returns>public bool DownLoadFile(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>/// <param name="Filename">文件名</param>/// <param name="Prog">状态栏式进度条ToolStripProgressBar</param>/// <returns>True/False是否下载成功</returns>public bool DownLoadFile(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;}}}
}