头文件

#ifndef CONFIGFILEPARSER_H

#define CONFIGFILEPARSER_H

#include <QVariant>

class QSettings;

/*

*配置文件解析类，适配器设计模式

*/

class ConfigFileParser

{

public:

ConfigFileParser();

~ConfigFileParser();

QString getCurrentPath();

QString getConfigFile();

void setValue(const QString &key, const QVariant &value);

QVariant value(const QString &key, const QVariant &defaultValue = QVariant()) const;

void remove(const QString &key);

void sync(); //同步操作，可使写入的信息立即生效

private:

QSettings *m_configIniWrite;

QString m_currentPath;

QString m_configFile;

};

#endif // CONFIGFILEPARSER_H

CPP文件

#include <QDir>

#include <QSettings>

#include <QTextCodec>

#include "configfileparser.h"

ConfigFileParser::ConfigFileParser()

{

m_currentPath = QDir::home().path() + "/.local/share";

m_configFile = m_currentPath + "/config.ini";

m_configIniWrite = new QSettings(m_configFile, QSettings::IniFormat);

m_configIniWrite->setIniCodec(QTextCodec::codecForName("UTF-8"));

}

ConfigFileParser::~ConfigFileParser()

{

if (m_configIniWrite != NULL)

{delete m_configIniWrite;m_configIniWrite= NULL;}

}

void ConfigFileParser::sync()

{m_configIniWrite->sync();}

QString ConfigFileParser::getCurrentPath()

{return this->m_currentPath;}

QString ConfigFileParser::getConfigFile()

{return this->m_configFile;}

void ConfigFileParser::setValue(const QString &key, const QVariant &value)

{m_configIniWrite->setValue(key,value);}

QVariant ConfigFileParser::value(const QString &key, const QVariant &defaultValue) const

{return m_configIniWrite->value(key,defaultValue);}

void ConfigFileParser::remove(const QString &key)

{m_configIniWrite->remove(key);}

另外，调用时,应该如下:

ConfigFileParser configFileParser;//栈变量，自动释放。

注意:如果想要改变配置文件名称或位置，可以自行优化，也很简单。