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 using System;
        using System.Collections.Generic;
        using System.Linq;
        using System.Web;
        using System.IO;
        using System.Net;
        using FileOperationAboutSharePoint.SPCopyService;
         
        namespace FileOperationAboutSharePoint.FileOperation
        {
            public class SPServiceOperation : IFileOperation
            {
                public bool UploadFileToSPSite(string domain, string userAccount, string pwd, string documentLibraryUrl, string localFilePath, ref string statusInfo)
                {
                    bool isSuccess = false;
                    try
                    {
                        string fileName = Path.GetFileName(localFilePath);
                        string tempFilePath = string.Format("{0}{1}", Path.GetTempPath(), fileName);
                        File.Copy(localFilePath, tempFilePath, true);
                        FileStream fs = new FileStream(tempFilePath, FileMode.Open, FileAccess.Read);
                        BinaryReader br = new BinaryReader(fs);
                        byte[] fileContent = br.ReadBytes((int)fs.Length);
                        br.Close();
                        fs.Close();
                        Copy service = CreateCopy(domain, userAccount, pwd);
                        service.Timeout = System.Threading.Timeout.Infinite;
                        FieldInformation fieldInfo = new FieldInformation();
                        FieldInformation[] fieldInfoArr = { fieldInfo };
                        CopyResult[] resultArr;
                        service.CopyIntoItems(
                            tempFilePath,
                            new string[] { string.Format("{0}{1}", documentLibraryUrl, fileName) },
                            fieldInfoArr,
                            fileContent,
                            out resultArr);
                        isSuccess = resultArr[0].ErrorCode == CopyErrorCode.Success;
                        if (!isSuccess)
                        {
                            statusInfo = string.Format("Failed Info: {0}", resultArr[0].ErrorMessage);
                        }
         
                    }
                    catch (Exception ex)
                    {
                        statusInfo = string.Format("Failed Info: {0}", ex.Message);
                        isSuccess = false;
                    }
                    return isSuccess;
                }
         
                public bool DownloadFileFromSPSite(string domain, string userAccount, string pwd, string documentUrl, string localFilePath, ref string statusInfo)
                {
                    bool isSuccess = false;
                    try
                    {
                        Copy service = CreateCopy(domain, userAccount, pwd);
                        service.Timeout = System.Threading.Timeout.Infinite;
                        FieldInformation[] fieldInfoArr;
                        byte[] fileContent;
                        service.GetItem(documentUrl,out fieldInfoArr,out fileContent);
                        if (fileContent != null)
                        {
                            FileStream fs = new FileStream(localFilePath, FileMode.Create, FileAccess.Write);
                            fs.Write(fileContent, 0, fileContent.Length);
                            fs.Close();
                            isSuccess = true;
                        }
                        else
                        {
                            statusInfo = string.Format("Failed Info: {0}不存在", documentUrl);
                            isSuccess = false;
                        }
                    }
                    catch (Exception ex)
                    {
                        statusInfo = string.Format("Failed Info: {0}", ex.Message);
                        isSuccess = false;
                    }
                    return isSuccess;
                }
         
                private Copy CreateCopy(string domain, string userAccount, string pwd)
                {
                    Copy service = new Copy();
                    if (String.IsNullOrEmpty(userAccount))
                    {
                        service.UseDefaultCredentials = true;
                    }
                    else
                    {
                        service.Credentials = new NetworkCredential(userAccount, pwd, domain);
                    }
                    return service;
                }
            }
        }