读取当前目录下CIniFile类文件

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//Inifile.h
 
/*****************************************************************

    文件名:读取当前目录下CIniFile类文件
    日期:2004-1-18
    作者:chao_jie
    E_Mail:chaojie2003@yahoo.com.cn

    功能:系统提供的WriteProfileInt()等函数,写到注册表或
         系统ini文件里,调用比较麻烦,而且会占用注册表资
         源,下载了网上的ini类用起来又不太顺手,所以参照
         写了一个读取当前目录下ini文件的类。程序有详细的
         注释,欢迎批评指正。

*****************************************************************/

/*//////////////////////////////////////////////////////////////////
使用方法:
1.先把IniFile.h,IniFile.ccp加入Porject,在要使用该类的头文件中加入
    #include "IniFile.h",及CIniFile IniFile;

2.读取和写入:
    string = IniFile.GetString("section","item","默认");
    int = IniFile.GetInt("section","item",666);

    IniFile.SetString("section","item","设置值");
    IniFile.SetInt("section","item",666);

3.ini文件名及路径在初始化时,用SetFileName()设置

注意事项:ini文件如果太长,读取速度会变慢,可以使用多个ini文件

//////////////////////////////////////////////////////////////////*/
// IniFile.h: interface for the CIniFile class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_INIFILE_H__33CAF5C6_7820_43EB_8D84_42CC1856C35C__INCLUDED_)
#define AFX_INIFILE_H__33CAF5C6_7820_43EB_8D84_42CC1856C35C__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class CIniFile  
{
public:
    void SetFileName(CString FileName);

    void WriteFileString(CString Section, CString Item, CString Value);
    CString GetFileString(CString Section, CString Item, CString Value);

    CString GetString(CString Section, CString Item, CString Value);
    int GetInt(CString Section, CString Item, int Value);

    void SetString(CString Section, CString Item, CString Value);
    void SetInt(CString Section, CString Item, int Value);

    BOOL WriteIniFile();
    BOOL ReadIniFile();

    CIniFile();
    virtual ~CIniFile();

    //ini file
    CString m_sFileName;
    CStdioFile IniFile;
    BOOL  bFileExist;
    CStringArray FileContainer;

};

#endif // !defined(AFX_INIFILE_H__33CAF5C6_7820_43EB_8D84_42CC1856C35C__INCLUDED_)
inifile.cpp

 

// IniFile.cpp: implementation of the CIniFile class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "IniFile.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CIniFile::CIniFile()
{
    m_sFileName = "ini.ini";
}

CIniFile::~CIniFile()
{
    if(FileContainer.GetSize() > 0)
    {
        FileContainer.RemoveAll();
    }
}

void CIniFile::SetFileName(CString FileName)
{
    m_sFileName = FileName;
}

void CIniFile::SetInt(CString Section, CString Item, int Value)
{
    CString strtemp;
//  strtemp.Format("%d",Value);
    //保存到FileContainer
    WriteFileString(Section, Item, strtemp);
    //保存到ini文件
    WriteIniFile();
}

void CIniFile::SetString(CString Section, CString Item, CString Value)
{
    //保存到FileContainer
    WriteFileString(Section, Item, Value);
    //保存到ini文件
    WriteIniFile();
}

CString CIniFile::GetString(CString Section, CString Item, CString Value)
{
    return GetFileString(Section, Item, Value);
}

int CIniFile::GetInt(CString Section, CString Item, CString Value)
{
    CString strtemp;
//  strtemp.Format("%d",Value);
//  return atoi(GetFileString(Section, Item, strtemp));
    return GetFileString(Section, Item, strtemp);
}

BOOL CIniFile::ReadIniFile()
{
    bFileExist=IniFile.Open(m_sFileName, CFile::modeRead);

    if(!bFileExist)
    {
        return FALSE;
    }

    CString strline;
    FileContainer.RemoveAll();

    //将IniFile文件数据读到FileContainer
    while(IniFile.ReadString(strline))
    {
        FileContainer.Add(strline);
    }

    IniFile.Close();
    return TRUE;
}

BOOL CIniFile::WriteIniFile()
{
    bFileExist=IniFile.Open(m_sFileName, CFile::modeCreate | CFile::modeWrite);
    if(!bFileExist)
        return FALSE;
    
    CString strline;

    //将FileContainer写到IniFile文件
    for(int i = 0; i< FileContainer.GetSize(); i++)
    {
        strline = FileContainer[i];
        IniFile.WriteString(strline+"/n");
    }

    IniFile.Close();

    return bFileExist;
}

CString CIniFile::GetFileString(CString Section, CString Item, CString Value)
{
    ReadIniFile();//打开文件

    if(bFileExist == FALSE || FileContainer.GetSize() < 0)
        return Value;//文件打开出错或文件为空,返回默认值

    int i = 0;
    int iFileLines = FileContainer.GetSize();
    CString strline,str;

    while(i<iFileLines)
    {
        strline = FileContainer.GetAt(i++);

        strline.TrimLeft();
        if(strline.GetAt(0)=='[')//查找Section,第一个必须为[
        {
            str=strline.Left(strline.Find("]"));//去掉]右边
            str=str.Right(str.GetLength()-str.Find("[")-1);//去掉[左边

            str.TrimLeft();
            str.TrimRight();

            if(Section == str)//找到Section
            {
                while(i<iFileLines)
                {
                    strline = FileContainer.GetAt(i++);
                    strline.TrimLeft();

                    if(strline.GetAt(0)=='[')
                        return Value;//如果到达下一个[],即找不到,返回默认值
                    
                    str = strline.Left(strline.Find("="));//去掉=右边

                    str.TrimLeft();
                    str.TrimRight();

                    if(Item == str)//找到Item
                    {
                        str=strline.Right(strline.GetLength()-strline.Find("=")-1);//去掉=左边

                        str.TrimLeft();
                        str.TrimRight();

                        return str;
                    }
                }
                return Value;//找不到,返回默认值
            }

        }

    }
    return Value;//找不到,返回默认值
}

void CIniFile::WriteFileString(CString Section, CString Item, CString Value)
{
    int i = 0;
    int iFileLines = FileContainer.GetSize();
    CString strline,str;

    while(i<iFileLines)
    {
        strline = FileContainer.GetAt(i++);

        strline.TrimLeft();
        if(strline.GetAt(0)=='[')//查找Section,第一个必须为[
        {
            str=strline.Left(strline.Find("]"));//去掉]右边
            str=str.Right(str.GetLength()-str.Find("[")-1);//去掉[左边

            str.TrimLeft();
            str.TrimRight();

            if(Section == str)//找到Section
            {
                while(i<iFileLines)
                {
                    strline = FileContainer.GetAt(i++);
                    strline.TrimLeft();

                    if(strline.GetAt(0)=='[')//如果到达下一个[],即找不到Item
                    {
                        break;
                    }
                    
                    str = strline.Left(strline.Find("="));//去掉=右边

                    str.TrimLeft();
                    str.TrimRight();

                    if(Item == str)//找到Item
                    {
                        strline = Item + "=" + Value;
                        FileContainer[i-1] = strline;
                        return;
                    }
                }
                //找不到Item
                strline = Item + "=" + Value;
                FileContainer.InsertAt(i-1, strline);
                return;

            }

        }

    }
    //找不到Section
    //直接在最后加入Section,Item,Value
    FileContainer.Add("[" + Section + "]");
    FileContainer.Add(Item + "=" + Value);
    return;
}

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