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[ASP.net教程]C#读取ini文件的方法

最近项目用到ini文件,读取ini文件,方法如下:

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections.Specialized;using System.IO;using System.Runtime.InteropServices;using System.Windows.Forms;namespace test{  /// <summary>  /// IniFiles的类  /// </summary>  public class IniFiles  {    public string FileName; //INI文件名    //string path  =  System.IO.Path.Combine(Application.StartupPath,"pos.ini");    //声明读写INI文件的API函数    [DllImport("kernel32")]    private static extern bool WritePrivateProfileString(string section, string key, string val, string filePath);    [DllImport("kernel32")]    private static extern int GetPrivateProfileString(string section, string key, string def, byte[] retVal, int size, string filePath);    //类的构造函数,传递INI文件名    public IniFiles(string AFileName)    {      // 判断文件是否存在      FileInfo fileInfo = new FileInfo(AFileName);      //Todo:搞清枚举的用法      if ((!fileInfo.Exists))      { //|| (FileAttributes.Directory in fileInfo.Attributes))        //文件不存在,建立文件        System.IO.StreamWriter sw = new System.IO.StreamWriter(AFileName, false, System.Text.Encoding.Default);        try        {          sw.Write("#表格配置档案");          sw.Close();        }        catch        {          throw (new ApplicationException("Ini文件不存在"));        }      }      //必须是完全路径,不能是相对路径      FileName = fileInfo.FullName;    }    //写INI文件    public void WriteString(string Section, string Ident, string Value)    {      if (!WritePrivateProfileString(Section, Ident, Value, FileName))      {        throw (new ApplicationException("写Ini文件出错"));      }    }    //读取INI文件指定    public string ReadString(string Section, string Ident, string Default)    {      Byte[] Buffer = new Byte[65535];      int bufLen = GetPrivateProfileString(Section, Ident, Default, Buffer, Buffer.GetUpperBound(0), FileName);      //必须设定0(系统默认的代码页)的编码方式,否则无法支持中文      string s = Encoding.GetEncoding(0).GetString(Buffer);      s = s.Substring(0, bufLen);      return s.Trim();    }    //读整数    public int ReadInteger(string Section, string Ident, int Default)    {      string intStr = ReadString(Section, Ident, Convert.ToString(Default));      try      {        return Convert.ToInt32(intStr);      }      catch (Exception ex)      {        Console.WriteLine(ex.Message);        return Default;      }    }    //写整数    public void WriteInteger(string Section, string Ident, int Value)    {      WriteString(Section, Ident, Value.ToString());    }    //读布尔    public bool ReadBool(string Section, string Ident, bool Default)    {      try      {        return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default)));      }      catch (Exception ex)      {        Console.WriteLine(ex.Message);        return Default;      }    }    //写Bool    public void WriteBool(string Section, string Ident, bool Value)    {      WriteString(Section, Ident, Convert.ToString(Value));    }    //从Ini文件中,将指定的Section名称中的所有Ident添加到列表中    public void ReadSection(string Section, StringCollection Idents)    {      Byte[] Buffer = new Byte[16384];      //Idents.Clear();      int bufLen = GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0), FileName);      //对Section进行解析      GetStringsFromBuffer(Buffer, bufLen, Idents);    }    private void GetStringsFromBuffer(Byte[] Buffer, int bufLen, StringCollection Strings)    {      Strings.Clear();      if (bufLen != 0)      {        int start = 0;        for (int i = 0; i < bufLen; i++)        {          if ((Buffer[i] == 0) && ((i - start) > 0))          {            String s = Encoding.GetEncoding(0).GetString(Buffer, start, i - start);            Strings.Add(s);            start = i + 1;          }        }      }    }    //从Ini文件中,读取所有的Sections的名称    public void ReadSections(StringCollection SectionList)    {      //Note:必须得用Bytes来实现,StringBuilder只能取到第一个Section      byte[] Buffer = new byte[65535];      int bufLen = 0;      bufLen = GetPrivateProfileString(null, null, null, Buffer,      Buffer.GetUpperBound(0), FileName);      GetStringsFromBuffer(Buffer, bufLen, SectionList);    }    //读取指定的Section的所有Value到列表中    public void ReadSectionValues(string Section, NameValueCollection Values)    {      StringCollection KeyList = new StringCollection();      ReadSection(Section, KeyList);      Values.Clear();      foreach (string key in KeyList)      {        Values.Add(key, ReadString(Section, key, ""));      }    }    /**/    ////读取指定的Section的所有Value到列表中,    //public void ReadSectionValues(string Section, NameValueCollection Values,char splitString)    //{  string sectionValue;    //  string[] sectionValueSplit;    //  StringCollection KeyList = new StringCollection();    //  ReadSection(Section, KeyList);    //  Values.Clear();    //  foreach (string key in KeyList)    //  {    //    sectionValue=ReadString(Section, key, "");    //    sectionValueSplit=sectionValue.Split(splitString);    //    Values.Add(key, sectionValueSplit[0].ToString(),sectionValueSplit[1].ToString());    //  }    //}    //清除某个Section    public void EraseSection(string Section)    {      if (!WritePrivateProfileString(Section, null, null, FileName))      {        throw (new ApplicationException("无法清除Ini文件中的Section"));      }    }    //删除某个Section下的键    public void DeleteKey(string Section, string Ident)    {      WritePrivateProfileString(Section, Ident, null, FileName);    }    //Note:对于Win9X,来说需要实现UpdateFile方法将缓冲中的数据写入文件    //在Win NT, 2000和XP上,都是直接写文件,没有缓冲,所以,无须实现UpdateFile    //执行完对Ini文件的修改之后,应该调用本方法更新缓冲区。    public void UpdateFile()    {      WritePrivateProfileString(null, null, null, FileName);    }    //检查某个Section下的某个键值是否存在    public bool ValueExists(string Section, string Ident)    {      StringCollection Idents = new StringCollection();      ReadSection(Section, Idents);      return Idents.IndexOf(Ident) > -1;    }    //确保资源的释放    ~IniFiles()    {      UpdateFile();    }  }}


ini文件注意点:采用此类读取ini文件的时候首行必须空一行

[Parm]
xxxx =2016-01-08 16:42:04
IsOver =-1
EndTime =2016-01-11 11:30:08