init lserp cs 5.0
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.IO;
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using System.Net;
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using System.Windows.Forms;
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using Lskj.PubUtils.Upload;
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namespace Lskj.PubUtils
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{
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public static class UploadFile
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{
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// <summary>
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/// 将本地文件上传到指定的服务器(HttpWebRequest方法)
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/// </summary>
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/// <param name="address">文件上传到的服务器</param>
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/// <param name="fileNamePath">要上传的本地文件(全路径)</param>
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/// <param name="saveName">文件上传后的名称</param>
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/// <param name="progressBar">上传进度条</param>
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/// <returns>成功返回1,失败返回0</returns>
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public static int Upload_Request(string address, string fileNamePath, string saveName, ProgressBar progressBar)
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{
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int returnValue = 0;
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// 要上传的文件
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FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read);
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BinaryReader r = new BinaryReader(fs);
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//时间戳
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string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x");
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byte[] boundaryBytes = Encoding.ASCII.GetBytes("/r/n--" + strBoundary + "/r/n");
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//请求头部信息
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StringBuilder sb = new StringBuilder();
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sb.Append("--");
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sb.Append(strBoundary);
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sb.Append("/r/n");
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sb.Append("Content-Disposition: form-data; name=''");
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sb.Append("file");
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sb.Append("/'; filename=''");
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sb.Append(saveName);
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sb.Append("/r/n");
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sb.Append("Content-Type: ");
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sb.Append("application/octet-stream");
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sb.Append("/r/n");
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sb.Append("/r/n");
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string strPostHeader = sb.ToString();
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byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);
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// 根据uri创建HttpWebRequest对象
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HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address));
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httpReq.Method = "POST";
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//httpReq.ContentType="application/octet-stream";
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//httpReq.ContentLength=fs.Length;
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//对发送的数据不使用缓存
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httpReq.AllowWriteStreamBuffering = false;
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//设置获得响应的超时时间(300秒)
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httpReq.Timeout = 300000;
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httpReq.ContentType = "multipart/form-data; boundary=" + strBoundary;
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long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;
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long fileLength = fs.Length;
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httpReq.ContentLength = length;
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frmUpload upload = new frmUpload();
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try
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{
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upload.Show();
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progressBar.Maximum = int.MaxValue;
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progressBar.Minimum = 0;
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progressBar.Value = 0;
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//每次上传4k
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int bufferLength = 4096;
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byte[] buffer = new byte[bufferLength];
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//已上传的字节数
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long offset = 0;
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//开始上传时间
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DateTime startTime = DateTime.Now;
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int size = r.Read(buffer, 0, bufferLength);
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Stream postStream = httpReq.GetRequestStream();
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//发送请求头部消息
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postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
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while (size > 0)
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{
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postStream.Write(buffer, 0, size);
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offset += size;
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progressBar.Value = (int)(offset * (int.MaxValue / length));
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TimeSpan span = DateTime.Now - startTime;
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double second = span.TotalSeconds;
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upload.eclspeTime = "已用时:" + second.ToString("F2") + "秒";
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if (second > 0.001)
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{
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upload.speed = " 平均速度:" + (offset / 1024 / second).ToString("0.00") + "KB/秒";
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}
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else
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{
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upload.speed = " 正在连接…";
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}
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upload.state = "已上传:" + (offset * 100.0 / length).ToString("F2") + "% "
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+ (offset / 1048576.0).ToString("F2") + "M/" + (fileLength / 1048576.0).ToString("F2") + "M";
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upload.setState();
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Application.DoEvents();
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size = r.Read(buffer, 0, bufferLength);
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}
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//添加尾部的时间戳
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postStream.Write(boundaryBytes, 0, boundaryBytes.Length);
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postStream.Close();
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//获取服务器端的响应
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WebResponse webRespon = httpReq.GetResponse();
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Stream s = webRespon.GetResponseStream();
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StreamReader sr = new StreamReader(s);
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//读取服务器端返回的消息
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String sReturnString = sr.ReadLine();
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s.Close();
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sr.Close();
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if (sReturnString == "Success")
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{
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returnValue = 1;
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}
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else if (sReturnString == "Error")
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{
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returnValue = 0;
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}
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}
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catch
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{
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returnValue = 0;
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}
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finally
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{
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fs.Close();
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r.Close();
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}
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upload.Close();
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upload.Dispose();
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return returnValue;
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}
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}
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}
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