QT中，读取ini配置文件的封装类

前言

        每次都使用QSeting去读取和写入，感觉还是麻烦，于是自己封装了一个类。

源码

managerIniFile.h

#ifndef MANAGERINIFILE_H
#define MANAGERINIFILE_H
#include <QString>
#include <QDebug>
#include <QSettings>
#include <QCoreApplication>

/**
 * @brief 配置文件管理类
 */
class ManagerIniFile
{
public:
    ManagerIniFile();
    void SetIniPath(QString strIniFileName);
    void WriteSetting(QString strGroup, QString strValueName,QString strValue);
    QString ReadSetting(QString strGroup, QString strValueName, QString defaultStr = QString(""));

private:
    QString   defaultStrIniFileName;
    QString   strIniFileName;
    QSettings *m_settings;

};

#endif // MANAGERINIFILE_H

// 使用案例：
// QString strIniPath = QCoreApplication::applicationDirPath();
// strIniPath += "/";
// strIniPath += "config.ini";
// ManagerIniFile info;
// 可省：info.SetIniPath(strIniPath);

managerIniFile.cpp

#include "managerIniFile.h"

ManagerIniFile::ManagerIniFile()//:m_settings(defaultStrIniFileName,QSettings::IniFormat)
{
    defaultStrIniFileName = QCoreApplication::applicationDirPath() + "/" + "config.ini";
    strIniFileName = defaultStrIniFileName;
    m_settings = new QSettings(defaultStrIniFileName, QSettings::IniFormat);
}

void ManagerIniFile::SetIniPath(QString strIniFileName)
{
    m_settings->setUserIniPath(strIniFileName);
}

void ManagerIniFile::WriteSetting(QString strGroup, QString strValueName,QString strValue)
{
    // qDebug()<<"save ini file";
    m_settings->beginGroup(strGroup);
    m_settings->setValue(strValueName,strValue);
    m_settings->endGroup();
}

QString ManagerIniFile::ReadSetting(QString strGroup, QString strValueName, QString defaultStr)
{
    QString str = QString("%1/%2").arg(strGroup,strValueName);

    if(!(m_settings == nullptr))delete m_settings;
    m_settings = new QSettings(defaultStrIniFileName, QSettings::IniFormat);
    QString res = m_settings->value(str).toString();

    if(res==QString(""))
        return defaultStr;
    return res;

}

使用案例

1. 默认配置文件是config.ini，可以手动更改：

// 使用案例：
 QString strIniPath = QCoreApplication::applicationDirPath();
 strIniPath += "/";
 strIniPath += "config.ini";
 ManagerIniFile info;
 可省：info.SetIniPath(strIniPath);   

2. 读取：

ManagerIniFile  iniManager;

QString tmp = iniManager.ReadSetting("VIDEOPARA1",tr("SHOWCTRL"));

QString tmp = iniManager.ReadSetting("VIDEOPARA1",tr("SHOWCTRL"),QString::number(1)).toUInt();

3. 写入：

ManagerIniFile  iniManager;

iniManager.WriteSetting("VIDEOPARA1",tr("SHOWCTRL"),"2");