CnccForTMS/SiwiFms.Helper/WebClientHelper.cs

using SiwiFms.Helper;
using System;
using System.IO;
using System.Net;
using System.Windows.Forms;

namespace Siwi.Helper
{
    public 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);
            //得到文件扩展名
            string fileExtension = Path.GetExtension(fileNameFullPath);
            //新文件名
            string NewFileName = GuidHelper.NewGuid + fileExtension;

            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
            var myWebClient = new WebClient();
            myWebClient.Credentials = CredentialCache.DefaultCredentials;
            // 将要上传的文件打开读进文件流
            var myFileStream = new FileStream(fileNameFullPath, FileMode.Open, FileAccess.Read);
            var 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);
                }
                postStream.Close(); //关闭流
                return true;
            }
            catch
            {
                //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.abc.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
            var 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
            {
                var Myrq = (HttpWebRequest)WebRequest.Create(URL); //从URL地址得到一个WEB请求
                var myrp = (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
                Stream st = myrp.GetResponseStream(); //从WEB请求创建流（读）
                Stream so = new FileStream(Filename, FileMode.Create); //创建文件流（写）
                long totalDownloadedByte = 0; //下载文件大小
                var by = new byte[1024];
                int osize = st.Read(by, 0, @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, @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
            {
                var Myrq = (HttpWebRequest)WebRequest.Create(URL); //从URL地址得到一个WEB请求
                var myrp = (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
                Stream st = myrp.GetResponseStream(); //从WEB请求创建流（读）
                Stream so = new FileStream(Filename, FileMode.Create); //创建文件流（写）
                long totalDownloadedByte = 0; //下载文件大小
                var by = new byte[1024];
                int osize = st.Read(by, 0, @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, @by.Length); //读流
                }
                so.Close(); //关闭流
                st.Close(); //关闭流
                return true;
            }
            catch
            {
                return false;
            }
        }
    }
}