/// <summary>
/// 类的单例创建函数
/// </summary>
/// <returns>创建类的构造函数</returns>
public static AndonPlayer CreateInstance(string sqlConStr, string andonType, string andonFilePath)
{
// 当第一个线程运行到这里时，此时会对locker对象 "加锁"，
// 当第二个线程运行该方法时，首先检测到locker对象为"加锁"状态，该线程就会挂起等待第一个线程解锁
// lock语句运行完之后（即线程运行完之后）会对该对象"解锁"
// 双重锁定只需要一句判断就可以了
if (_andonPlayer == null)
{
lock (_locker)
{
// 如果类的实例不存在则创建，否则直接返回
if (_andonPlayer == null)
{
_andonPlayer = new AndonPlayer();
}
}
}
_andonPlayer.SqlConStr = sqlConStr;
_andonPlayer.AndonType = andonType;
_andonPlayer.AndonFilePath = andonFilePath;
return(_andonPlayer);
}
private void Play()
{
StringBuilder andonTypeStr = new StringBuilder();
andonTypeStr.Append("'");
if (ckbEqm.Checked)
{
andonTypeStr.Append("01','");
}
if (ckbPe.Checked)
{
andonTypeStr.Append("02','");
}
if (ckbProduct.Checked)
{
andonTypeStr.Append("03','");
}
if (ckbQc.Checked)
{
andonTypeStr.Append("04','");
}
if (ckbOther.Checked)
{
andonTypeStr.Append("05','");
}
if (andonTypeStr.Length >= 2)
{
andonTypeStr.Remove(andonTypeStr.Length - 2, 2);
}
else
{
andonTypeStr.Remove(0, andonTypeStr.Length);
andonTypeStr.Append("''");
}
string path = Common.ConfigHelper.GetConfigValueFromXml("generalSet", "musicDirectory", AppDomain.CurrentDomain.BaseDirectory + @"Config\mesMusicPlayerConfig.xml");
AndonPlayer adnPlayer = AndonPlayer.CreateInstance(Common.ConfigHelper.GetConfigValueFromXml("connectionStr", "defaultSqlDb", AppDomain.CurrentDomain.BaseDirectory + @"Config\mesMusicPlayerConfig.xml"), andonTypeStr.ToString(), path);
adnPlayer.Play(OpenSftwTime, PlayerIndex);
}