QSettings 讀/寫ini配置文件中的數組數據

以前項目中讀寫ini配置文件，都是以單個key-value形式進行讀寫，現在項目中又用到了需要把數據數組放置到ini配置文件中，這里結合Qt官方文檔進行驗證和總結。

配置文件中數據格式，存放三組數據，如圖1所示：

圖1 

1、寫入數據

void WriteIni() {
  QList<Login> logins_list;
  Login log1;
  log1.userName = "test1";
  log1.password = "1111";
  logins_list.append(log1);

  Login log2;
  log2.userName = "test2";
  log2.password = "2222";
  logins_list.append(log2);
  Login log3;
  log3.userName = "test3";
  log3.password = "3333";
  logins_list.append(log3);

  QSettings settings("config.ini", QSettings::IniFormat);
  settings.beginWriteArray("BaseInfo");
  for (int i = 0; i < logins_list.size(); ++i) {
    settings.setArrayIndex(i);
    settings.setValue("password", logins_list.at(i).password);
    settings.setValue("userName", logins_list.at(i).userName);
  }
  settings.endArray();
}

 

2、讀取數據

void ReadIni() {
  QList<Login> logins;

  QSettings settings("config.ini", QSettings::IniFormat);
  int size = settings.beginReadArray("BaseInfo");
  for (int i = 0; i < size; ++i) {
    settings.setArrayIndex(i);
    Login login;
    login.userName = settings.value("userName").toString();
    login.password = settings.value("password").toString();
    logins.append(login);
  }
  settings.endArray();

  for (int i = 0; i < logins.length(); ++i) {
    qDebug() << logins[i].userName;
    qDebug() << logins[i].password;
  }
}