我有一个名为“LogLevels”的公共属性的静态类“Logger”,如下面的代码所示。同时使用静态类中的静态属性
当在多用户或多线程环境中同时使用该属性时,它是否会导致问题?
我需要使用线程同步作为属性“LogLevels”中的代码吗?
public class Logger
{
private static List<LogLevel> _logLevels = null;
public static List<LogLevel> LogLevels
{
get
{
if (_logLevels == null)
{
_logLevels = new List<LogLevel>();
if (!string.IsNullOrWhiteSpace(System.Configuration.ConfigurationManager.AppSettings["LogLevels"]))
{
string[] lls = System.Configuration.ConfigurationManager.AppSettings["LogLevels"].Split(",".ToCharArray());
foreach (string ll in lls)
{
_logLevels.Add((LogLevel)System.Enum.Parse(typeof(LogLevel), ll));
}
}
}
if (_logLevels.Count == 0)
{
_logLevels.Add(LogLevel.Error);
}
return _logLevels;
}
}
}
更新:我结束了使用线程同步解决并发问题的一个静态类,如下面的代码。
public class Logger
{
private static readonly System.Object _object = new System.Object();
private static List<LogLevel> _logLevels = null;
private static List<LogLevel> LogLevels
{
get
{
//Make sure that in a multi-threaded or multi-user scenario, we do not run into concurrency issues with this code.
lock (_object)
{
if (_logLevels == null)
{
_logLevels = new List<LogLevel>();
if (!string.IsNullOrWhiteSpace(System.Configuration.ConfigurationManager.AppSettings["SimpleDBLogLevelsLogger"]))
{
string[] lls = System.Configuration.ConfigurationManager.AppSettings["SimpleDBLogLevelsLogger"].Split(",".ToCharArray());
foreach (string ll in lls)
{
_logLevels.Add((LogLevel)System.Enum.Parse(typeof(LogLevel), ll));
}
}
}
if (_logLevels.Count == 0)
{
_logLevels.Add(LogLevel.Error);
}
}
return _logLevels;
}
}
}
您的房产在您的示例中是“private”,而不是“public” – JerKimball 2013-03-01 18:38:08
我已更正修改并将其更改为public。 – Sunil 2013-03-01 21:38:29