Mysql之检测系统是否已安装Mysql

public class DetectMySqlInComputer
{
#region 检测电脑中是否安装MySql
///<summary>
/// 检测是否安装office
///</summary>
///<param name="office_Version"> 获得并返回安装的office版本</param>
///<returns></returns>
public static bool hasInstalledMySql(out string mySql_Version, out string mySql_Path)
{
　　bool result = false;
　　string str_MySqlPath = string.Empty;
　　string str_MySqlVersion = string.Empty;
　　mySql_Version = string.Empty;
　　mySql_Path = string.Empty;

　　GetMySqlPath(out str_MySqlPath, out str_MySqlVersion);
　　if (!string.IsNullOrEmpty(str_MySqlVersion) && !string.IsNullOrEmpty(str_MySqlPath))
　　{
　　result = true;
　　mySql_Version = str_MySqlVersion;
　　mySql_Path = str_MySqlPath;
　　}
　　return result;
}

///<summary>
/// 获取并返回当前安装的MySql版本和安装路径
///</summary>
///<param name="str_OfficePath">MySql的安装路径</param>
///<param name="str_OfficeVersion">MySql的安装版本</param>
private static void GetMySqlPath(out string str_MySqlPath, out string str_MySqlVersion)
{
　　string str_PathResult = string.Empty;
　　string str_VersionResult = string.Empty;

　　Microsoft.Win32.RegistryKey regKey = null;//表示 Windows 注册表中的项级节点(注册表对象?)
　　Microsoft.Win32.RegistryKey regSubKey = null;
　　try
　　{
　　regKey = Microsoft.Win32.Registry.LocalMachine;//读取HKEY_LOCAL_MACHINE项
　　//系统中是否存在MySQL Sever 5.6
　　if (regSubKey == null)
　　{
　　string keyPath = @"SOFTWARE\MySQL AB\MySQL Server 5.6";
　　regSubKey = regKey.OpenSubKey(keyPath, false);
}
//系统中是否存在MySQL Sever 5.5
if (regSubKey == null)
{
　　string keyPath = @"SOFTWARE\MySQL AB\MySQL Server 5.5";
　　regSubKey = regKey.OpenSubKey(keyPath, false);
}
//系统中是否存在MySQL Sever 5.4
if (regSubKey == null)
{
　　string keyPath = @"SOFTWARE\MySQL AB\MySQL Server 5.4";
　　regSubKey = regKey.OpenSubKey(keyPath, false);
}
//系统中是否存在MySQL Sever 5.1
if (regSubKey == null)
{
　　string keyPath = @"SOFTWARE\MySQL AB\MySQL Server 5.1";
　　regSubKey = regKey.OpenSubKey(keyPath, false);
}
//系统中是否存在MySQL Sever 5.0
if (regSubKey == null)
{
　　string keyPath = @"SOFTWARE\MySQL AB\MySQL Server 5.0";
　　regSubKey = regKey.OpenSubKey(keyPath, false);
}
//得到路径和版本
if (regSubKey.GetValue("Location") != null)
{
　　str_PathResult = regSubKey.GetValue("Location").ToString();
}
if (regSubKey.GetValue("Version") != null)
{
　　str_VersionResult = regSubKey.GetValue("Version").ToString();
}

}
catch (Exception ex)
{
　　MessageBox.Show("检测是否存在MySql出错," + ex.ToString(), "提示信息");
}

finally
{
if (regKey != null)
{
　　regKey.Close();
　　regKey = null;
}

if (regSubKey != null)
{
　　regSubKey.Close();
　　regSubKey = null;
}
}
　　str_MySqlPath = str_PathResult;
　　str_MySqlVersion = str_VersionResult;
}

　　#endregion
}