QSettings读写ini配置文件
- 2019 年 12 月 20 日
- 笔记
Qt中使用QSettings类读取ini后缀的配置文件非常简单,使用该类也可以很简单的操作Windows注册表。以前也使用过MFC中的WritePrivateProfileString()和GetPrivateProfileString()这两个API操作ini配置文件。
使用QSettings类读写ini配置文件的示例代码
相关代码如下:
// test.cpp
#include <QCoreApplication> #include <QSettings> #include <iostream> #include <QDebug> using namespace std; int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); QString fileName; fileName = QCoreApplication::applicationDirPath(); fileName += "/config/net.ini"; QSettings settings(fileName, QSettings::IniFormat); // 设置服务器的ip和端口信息 settings.beginGroup("server"); settings.setValue("ip", "192.168.1.120"); settings.setValue("port", 10001); settings.endGroup(); // 设置数据库连接信息 settings.beginGroup("dbInfo"); settings.setValue("dbSource", "MySQL"); settings.setValue("host", "15.15.0.216"); settings.setValue("port", 9011); settings.setValue("username", "root"); settings.setValue("password", "123456"); settings.setValue("dbName", "HBHazeDB"); settings.endGroup(); // 读取ini文件 settings.setIniCodec("UTF8"); // 设置编码方式 --->解析ini配置文件中的文字问题 // 获取server分组下的ip和端口信息 settings.beginGroup("server"); QString strIp = settings.value("ip").toString(); int port = settings.value("port").toInt(); settings.endGroup(); // 获取dbInfo分组下的数据库连接信息 settings.beginGroup("dbInfo"); QString dbSource = settings.value("dbSource").toString(); QString host = settings.value("host").toString(); int dbPort = settings.value("port").toInt(); QString username = settings.value("username").toString(); QString password = settings.value("password").toString(); QString dbName = settings.value("dbName").toString(); settings.endGroup(); qDebug() << "server info:[" << "ip:" << strIp << ",port:" << port << "]"; qDebug() << "dbInfo:[" << "dbSource:" << dbSource << ",host:" << host << ",dbPort:" << dbPort << ",username:" << username << ",password:" << password << ",dbName:" << dbName << "]"; return a.exec(); }
对应的net.ini配置文件如下:
[server] ip=192.168.1.120 port=10001 [dbInfo] dbSource=MySQL host=15.15.0.216 port=9011 username=root password=123456 dbName=HBHazeDB