C# 下载文件
作者:互联网
最近用到了文件下载,
网上找了段代码
/// <summary> /// http下载文件 /// </summary> /// <param name="url">下载文件地址</param> /// <param name="path">文件存放地址,包含文件名</param> /// <returns></returns> public bool HttpDownload(string url, string path) { string tempPath = System.IO.Path.GetDirectoryName(path) + @"\temp"; System.IO.Directory.CreateDirectory(tempPath); //创建临时文件目录 string tempFile = tempPath + @"\" + System.IO.Path.GetFileName(path) + ".temp"; //临时文件 if (System.IO.File.Exists(tempFile)) { System.IO.File.Delete(tempFile); //存在则删除 } try { FileStream fs = new FileStream(tempFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite); // 设置参数 HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; //发送请求并获取相应回应数据 HttpWebResponse response = request.GetResponse() as HttpWebResponse; //直到request.GetResponse()程序才开始向目标网页发送Post请求 Stream responseStream = response.GetResponseStream(); //创建本地文件写入流 //Stream stream = new FileStream(tempFile, FileMode.Create); byte[] bArr = new byte[1024]; int size = responseStream.Read(bArr, 0, (int)bArr.Length); while (size > 0) { //stream.Write(bArr, 0, size); fs.Write(bArr, 0, size); size = responseStream.Read(bArr, 0, (int)bArr.Length); } //stream.Close(); fs.Close(); responseStream.Close(); System.IO.File.Move(tempFile, path); return true; } catch (Exception ex) { return false; } }
标签:文件,bArr,string,C#,System,tempFile,IO,下载,size 来源: https://www.cnblogs.com/wu-xin/p/12034747.html