102 lines
3.6 KiB
C#
102 lines
3.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.Serialization;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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namespace BackupAndImport
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{
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class Tools
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{
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/// <summary>
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/// 获取指定目录中的匹配文件
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/// </summary>
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/// <param name="dir">要搜索的目录</param>
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/// <param name="regexPattern">文件名模式（正则）。null表示忽略模式匹配，返回所有文件</param>
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/// <param name="depth">递归深度。负数表示不限，0表示仅顶级</param>
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/// <param name="throwEx">是否抛异常</param>
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/// <returns></returns>GetFiles(path,"(?<db>(数据库.db)|(aliTools.db))",-1)
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public static string[] GetFiles(string dir, string regexPattern = null, int depth = 0, bool throwEx = false)
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{
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List<string> lst = new List<string>();
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try
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{
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foreach (string item in Directory.GetFileSystemEntries(dir))
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{
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try
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{
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bool isFile = (File.GetAttributes(item) & FileAttributes.Directory) != FileAttributes.Directory;
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if (isFile && (regexPattern == null || Regex.IsMatch(Path.GetFileName(item), regexPattern, RegexOptions.IgnoreCase | RegexOptions.Multiline)))
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{ lst.Add(item); }
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//递归
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if (depth != 0 && !isFile) { lst.AddRange(GetFiles(item, regexPattern, depth - 1, throwEx)); }
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}
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catch { if (throwEx) { throw; } }
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}
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}
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catch { if (throwEx) { throw; } }
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return lst.ToArray();
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}
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/// <summary>
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/// 序列化 对象到字符串
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/// </summary>
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/// <param name="obj">泛型对象</param>
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/// <returns>序列化后的字符串</returns>
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public static string Serialize<T>(T obj)
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{
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try
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{
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IFormatter formatter = new BinaryFormatter();
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MemoryStream stream = new MemoryStream();
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formatter.Serialize(stream, obj);
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stream.Position = 0;
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byte[] buffer = new byte[stream.Length];
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stream.Read(buffer, 0, buffer.Length);
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stream.Flush();
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stream.Close();
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return Convert.ToBase64String(buffer);
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}
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catch (Exception ex)
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{
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throw new Exception("序列化失败,原因:" + ex.Message);
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}
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}
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/// <summary>
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/// 反序列化 字符串到对象
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/// </summary>
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/// <param name="obj">泛型对象</param>
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/// <param name="str">要转换为对象的字符串</param>
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/// <returns>反序列化出来的对象</returns>
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public static T Desrialize<T>(T obj, string str)
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{
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try
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{
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obj = default(T);
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IFormatter formatter = new BinaryFormatter();
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byte[] buffer = Convert.FromBase64String(str);
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MemoryStream stream = new MemoryStream(buffer);
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obj = (T)formatter.Deserialize(stream);
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stream.Flush();
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stream.Close();
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}
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catch (Exception ex)
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{
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throw new Exception("反序列化失败,原因:" + ex.Message);
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}
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return obj;
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}
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}
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}
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