根据新旧文件版本或者时间对比，抽取更新文件
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using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace ConsoleApp1 { class Program { static void Main(string[] args) { FileCompare com = new FileCompare(); com.StartCompare(); } } public class FileCompare { public DateTime JieZhiDate = DateTime.Parse("2020-01-01"); //取出修改时间大于此时间的文件 string floadPath1 = @"C:AUpdateTool"; string floadPath2 = @"C:AUpdateTool"; string floadPath3 = @"C:TEST"; /// <summary> /// 比较按钮 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void StartCompare() { object[] strArr = new object[] { floadPath1, floadPath2, floadPath3 }; Thread thread = new Thread(new ParameterizedThreadStart(StartCheck)); thread.Start(strArr); } /// <summary> /// 同步文件版本 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void btnTongBu_Click() { object[] strArr = new object[] { floadPath1, floadPath3, floadPath1 }; Thread thread = new Thread(new ParameterizedThreadStart(StartTongBu)); thread.Start(strArr); } /// <summary> /// 抽取更新文件 /// </summary> /// <param name="obj"></param> public void StartCheck(object obj) { object[] path = obj as object[]; string strSource = path[0].ToString(); //老的文件 string strCurren = path[1].ToString(); //新文件 string strTarget = path[2].ToString(); //需要更新的文件 #region 删除更新文件 if (Directory.Exists(floadPath3)) { try { Directory.Delete(floadPath3, true); //删除更新文件夹中文件 Directory.CreateDirectory(floadPath3); } catch { } } #endregion CheckFile(strSource, strCurren, strTarget); //检查本目录文件 CheckSonFolds(strSource, strCurren, strTarget); //检查子目录更新文件 } /// <summary> /// 同步 /// </summary> /// <param name="obj"></param> public void StartTongBu(object obj) { object[] path = obj as object[]; string strSource = path[0].ToString(); //需要更新的文件目录 string strCurren = path[1].ToString(); //老的文件目录 string strTarget = path[2].ToString(); //需要更新的文件目录 CheckFile(strSource, strCurren, strTarget); //检查本目录文件 CheckSonFolds(strSource, strCurren, strTarget); //检查子目录更新文件 } /// <summary> /// 检查子目录更新文件 /// </summary> /// <param name="strSource">源目录</param> /// <param name="strCurren">新目录</param> /// <param name="strTarget">COPY目标</param> public void CheckSonFolds(string strSource, string strCurren, string strTarget) { #region 搜索当前文件夹 string[] strNewFolds = GetSonFload(strCurren); if (strNewFolds != null && strNewFolds.Length > 0) { for (int i = 0; i < strNewFolds.Length; i++) { string path1 = strNewFolds[i].Replace(strCurren, strSource); string path2 = strNewFolds[i]; string path3 = strTarget + strNewFolds[i].Replace(strCurren, ""); CheckFile(path1, path2, path3); //检查文件 CheckSonFolds(path1, path2, path3); //检查文件夹 } } #endregion } /// <summary> /// 检查文件 /// </summary> /// <param name="strSource">老目录</param> /// <param name="strCurren">新目录</param> /// <param name="strTarget">Copy目录</param> public void CheckFile(string strSource, string strCurren, string strTarget) { #region 检查当前目录文件 string[] strNewFiles = GetCheckFile(strCurren); if (strNewFiles != null && strNewFiles.Length > 0) { for (int i = 0; i < strNewFiles.Length; i++) { string path1 = strNewFiles[i].Replace(strCurren, strSource); string path2 = strNewFiles[i]; //bool flag = Compare(path1, path2);//比较两个文件差异 //if (flag) //{ // if (!FilterFile(path2)) //判断文件不是需过滤文件 // { // Copy(path2, strTarget); // } //} bool flag = Compare(path1); //根据时间判断是否需要复制 if (flag) { if (!FilterFile(path1)) //判断文件不是需过滤文件 { Copy(path1, strTarget); } } } } #endregion } /// <summary> /// 查找当前路径下的文件 /// </summary> /// <param name="currentPath"></param> public string[] GetCheckFile(string currentPath) { if (!Directory.Exists(currentPath)) return null; return Directory.GetFiles(currentPath); } /// <summary> /// 取出该路径所有的子目录 /// </summary> /// <param name="currentPath"></param> /// <returns></returns> public string[] GetSonFload(string currentPath) { if (!Directory.Exists(currentPath)) return null; return Directory.GetDirectories(currentPath); } public bool Compare(string file1) { bool result = false; if ("" == file1) return false; if (!File.Exists(file1)) return false; FileInfo fi = new FileInfo("E:\text.txt"); if (fi.LastWriteTime > JieZhiDate) { return true; } return result; } /// <summary> /// 比较两个文件是否相等, 不相同返回True,相同返回Flase /// </summary> /// <param name="file1"></param> /// <param name="file2"></param> /// <returns></returns> public bool Compare(string file1, string file2) { bool result = false; if ("" == file1 || "" == file2) return false; if (!File.Exists(file1)) return true; StreamReader sr1 = new StreamReader(file1); StreamReader sr2 = new StreamReader(file2); try { if (object.Equals(sr1.ReadToEnd(), sr2.ReadToEnd())) //读取两个文件的内容并判断是否相同 { result = false; } else { result = true; } } catch { } finally { sr1.Dispose(); sr2.Dispose(); } return result; } /// <summary> /// 复制文件 /// </summary> /// <param name="newFile">新文件</param> /// <param name="targetPath">目标文件夹</param> public void Copy(string newFile, string targetPath) { string file = newFile.Substring(newFile.LastIndexOf(‘\‘)); if (!Directory.Exists(targetPath)) Directory.CreateDirectory(targetPath); string newFileName = targetPath + file; File.Copy(newFile, newFileName, true); FileInfo fileInfoSet = new FileInfo(newFileName); //去掉只读属性 fileInfoSet.Attributes &= ~FileAttributes.ReadOnly; } /// <summary> /// 过滤成功返回True,否则返回False /// </summary> /// <param name="filePath"></param> /// <returns></returns> public bool FilterFile(string filePath) { bool result = false; if (string.IsNullOrEmpty(filePath)) return true; int index = filePath.LastIndexOf(‘.‘); if (index < 0) return true; string strSuffixs = filePath.Substring(index + 1); IList<string> list = GetSuffixs(); if (list.Contains(strSuffixs)) return true; return result; } public IList<string> GetSuffixs() { IList<string> list = new List<string>(); list.Add("pdb"); return list; } } }
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