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
{
/// /// WebClient上传文件至服务器(不带进度条) ///
/// 要上传的文件(全路径格式)
/// Web服务器文件夹路径
///
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
\
}
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;
}
}
/// /// 下载服务器文件至客户端(不带进度条) ///
/// 要下载的Web服务器上的文件地址(全路径 如:http://www.dzbsoft.com/test.rar)
/// 下载到的目录(存放位置,机地机器文件夹)
///
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;
}
}
/// /// 下载带进度条代码(普通进度条) ///
/// 网址
/// 文件名
/// 普通进度条ProgressBar
///
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; //小
osize = st.Read(by, 0, (int)by.Length); // }
更新文件大Application.DoEvents();
so.Write(by, 0, osize); //写流
Prog.Value = (int)totalDownloadedByte; //更新进度条
读流
}
so.Close(); //关闭流
st.Close(); //关闭流
return true;
catch
{
return false;
}
}
/// /// 下载带进度条代码(状态栏式进度条) ///
/// 网址
/// 文件名
/// 状态栏式进度条ToolStripProgressBar
///
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)
{
小
}
totalDownloadedByte = osize + totalDownloadedByte; //更新文件大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;
}
}
}
}
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