c++获取ini配置文件。ini配置文件和exe执行程序同在一个目录下的信息

￡神魔★判官ぃ 2022-05-08 15:12 348阅读 0赞

配置文件Config.ini如下：

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pch.h文件

#include <atlstr.h>
    #include <string.h>
    #include <iostream>
    #include <windows.h>
    #include <stdio.h>
    //#include <malloc.h>
    //#define _CRT_SECURE_NO_WARNINGS
    
    class Config {
        
        public:
    char *getConfigInfo(LPCTSTR lpAppName, LPCTSTR lpKeyName, LPCTSTR lpDefault, LPTSTR lpReturnedString, DWORD nSize,CString szIniPath);
    		CString getPath();
    int getNumber(LPCTSTR lpAppName, LPCTSTR lpKeyName, DWORD nSize, CString szIniPath);
    
    };

test.cpp文件

#include "pch.h"
    using namespace std;
    extern char* ConvertLPWSTRToLPSTR(LPWSTR lpwszStrIn);
    //#include <malloc.h>
    //#define _CRT_SECURE_NO_WARNINGS
    
    int main() {
    	TCHAR jdbc[MAX_PATH] = { 0 };
    	TCHAR data[MAX_PATH] = { 0 };
    	TCHAR user[MAX_PATH] = { 0 };
    	TCHAR pass[MAX_PATH] = { 0 };
    	Config con;
    	CString szIniPath =con.getPath();
    	wcout << "szIniPath====" << szIniPath.GetString() << endl;
    	char *jdbcUrl =con.getConfigInfo(TEXT("Mysql"), TEXT("jdbcUrl"), NULL, jdbc, MAX_PATH, szIniPath);
    	char *database = con.getConfigInfo(TEXT("Mysql"), TEXT("database"), NULL, data, MAX_PATH, szIniPath);
    int nValue = ::GetPrivateProfileInt(TEXT("Section1"), TEXT("time"), 0, szIniPath);
    	wcout << "database====" << database << endl;
    	wcout << "jdbcUrl====" << jdbcUrl << endl;
        wcout << "nValue ====" << nValue << endl;
    }
    CString Config::getPath() {
    	// ----------------------------------------  
    	// 一个config.ini  
    	// ----------------------------------------  
    	// 得到exe执行路径.  
    	TCHAR tcExePath[MAX_PATH] = { 0 };
    	::GetModuleFileName(NULL, tcExePath, MAX_PATH);
    	// 设置ini路径到exe同一目录下  
        #ifndef CONFIG_FILE  
        #define CONFIG_FILE     (TEXT("Config.ini"))  
        #endif  
        //_tcsrchr() 反向搜索获得最后一个'\\'的位置，并返回该位置的指针  
    	TCHAR *pFind = _tcsrchr(tcExePath, '\\');
    	if (pFind == NULL)
    	{
    		return "0";
    	}
    	*pFind = '\0';
    	CString szIniPath = tcExePath;
    	szIniPath += "\\";
    	szIniPath += CONFIG_FILE;
    	wcout << "szIniPath=" << szIniPath.GetString() << endl;
    	return szIniPath;
    }
    char *Config::getConfigInfo(LPCTSTR lpAppName, LPCTSTR lpKeyName, LPCTSTR lpDefault, LPTSTR lpReturnedString, DWORD nSize, CString szIniPath) {//获得字符串
    	//下面执行读取 ----------------------------------  
    	if (!::PathFileExists(szIniPath))
    	{
    		return 0;
    	}
    	//--------------------------------------------------------  
    	//DWORD GetPrivateProfileString(  
    	//                              LPCTSTR lpAppName,            // 节名  
    	//                              LPCTSTR lpKeyName,            // 键名，读取该键的值  
    	//                              LPCTSTR lpDefault,            // 若指定的键不存在，该值作为读取的默认值  
    	//                              LPTSTR lpReturnedString,      // 一个指向缓冲区的指针，接收读取的字符串  
    	//                              DWORD nSize,                  // 指定lpReturnedString指向的缓冲区的大小  
    	//                              LPCTSTR lpFileName            // 读取信息的文件名。若该ini文件与程序在同一个目录下，  
    	//                                                                也可使用相对路径,否则需要给出绝度路径  
    	
    	//--------------------------------------------------------  
    	::GetPrivateProfileString(lpAppName, lpKeyName, lpDefault, lpReturnedString, nSize, szIniPath);
    	CString CSConfig = lpReturnedString;
    	char *configIn = ConvertLPWSTRToLPSTR(CSConfig.GetBuffer());
    	//int nValue = ::GetPrivateProfileInt(TEXT("Service"), TEXT("Description"), 0, szIniPath);
    	//cout <<"nValue="<< nValue << endl;
    	//wcout << "jdbcUrl==" << jdbcUrl << endl;
    	return configIn;
    };
    
    int Config::getNumber(LPCTSTR lpAppName, LPCTSTR lpKeyName,DWORD nSize, CString szIniPath) {//获取整型
    	//下面执行读取 ----------------------------------  
    	if (!::PathFileExists(szIniPath))
    	{
    		return 0;
    	}
    	
    	//UINT GetPrivateProfileInt(  
    	//                              LPCTSTR lpAppName,            // 节名  
    	//                              LPCTSTR lpKeyName,            // 键名，读取该键的值  
    	//                              INT nDefault,                 // 若指定的键名不存在，该值作为读取的默认值  
    	//                              LPCTSTR lpFileName            // 同上  
    	//  
    	//--------------------------------------------------------  
    	
    	//int nValue = ::GetPrivateProfileInt(TEXT("Service"), TEXT("Description"), 0, szIniPath);
    	int nValue = ::GetPrivateProfileInt(lpAppName,lpKeyName,nSize, szIniPath);
    	wcout <<"nValue="<< nValue << endl;
    	return nValue;
    };
    //****************************************************************************************** /
    char* ConvertLPWSTRToLPSTR(LPWSTR lpwszStrIn)
    {
    	LPSTR pszOut = NULL;
    	try
    	{
    		if (lpwszStrIn != NULL)
    		{
    			int nInputStrLen = wcslen(lpwszStrIn);
    
    			// Double NULL Termination  
    			int nOutputStrLen = WideCharToMultiByte(CP_ACP, 0, lpwszStrIn, nInputStrLen, NULL, 0, 0, 0) + 2;
    			pszOut = new char[nOutputStrLen];
    
    			if (pszOut)
    			{
    				memset(pszOut, 0x00, nOutputStrLen);
    				WideCharToMultiByte(CP_ACP, 0, lpwszStrIn, nInputStrLen, pszOut, nOutputStrLen, 0, 0);
    			}
    		}
    	}
    	catch (std::exception e)
    	{
    	}
    	return pszOut;
    }

[70]: /images/20220506/a6076465f8394e30a040c9eb2b203263.png