74 lines
2.4 KiB
C#
74 lines
2.4 KiB
C#
/*
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* 临时文件自动存储管理
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* 肖俊
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* 2017-7-11
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*
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*/
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using System;
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using System.Text;
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using System.Windows.Forms;
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namespace AllBase
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{
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public class TempFileReadWritex
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{
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private static string MainPath = Application.StartupPath + "\\temp\\";
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/// <summary>
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/// 写入临时文件
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/// </summary>
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/// <param name="id">ID</param>
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/// <param name="type">类型：content / desc</param>
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/// <param name="content">内容</param>
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public static void Write(long id, string type, string content)
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{
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string path = MainPath + type + "\\" + (id % 1024) + "\\";
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FileBase.DirectoryCreate(path);
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string file = path + id + ".tjm";
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FileBase.WriteAllText(file, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss\r\n"));
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FileBase.AppendAllText(file, content, Encoding.UTF8);
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}
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/// <summary>
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/// 读取临时文件
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/// </summary>
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/// <param name="id">ID</param>
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/// <param name="type">类型：content / desc</param>
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/// <param name="hadFile">读取成功</param>
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/// <returns></returns>
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public static string Read(long id, string type, out bool hadFile)
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{
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return Read(id, type, out hadFile, BaseClass.TempSecond);
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}
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/// <summary>
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/// 读取临时文件
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/// </summary>
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/// <param name="id">ID</param>
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/// <param name="type">类型：content / desc</param>
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/// <param name="hadFile">读取成功</param>
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/// <param name="useTime">过期时间，秒</param>
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/// <returns></returns>
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public static string Read(long id, string type, out bool hadFile, int useTime)
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{
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hadFile = false;
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string path = MainPath + type + "\\" + (id % 1024) + "\\";
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if (!FileBase.Exists(path))
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return null;
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string conent = FileBase.ReadAllText(path);
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if (conent.Length < 21)
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return null;
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string date = conent.Substring(0, 19);
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DateTime saveTime;
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if (!DateTime.TryParse(date, out saveTime))
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return null;
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double second = (DateTime.Now - saveTime).TotalSeconds;
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if (second < useTime)
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{
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hadFile = true;
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return conent.Substring(21);
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}
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return null;
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}
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}
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}
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