/// <summary>
/// 多语言执行选择
/// </summary>
private void UseMultiLanguage()
{
string cultureName = null;
// Attempt to read the culture cookie from Request
HttpCookie cultureCookie = Request.Cookies["_culture"];
if (cultureCookie != null)
{
cultureName = cultureCookie.Value;
}
else
{
cultureName = Request.UserLanguages[0]; // obtain it from HTTP header AcceptLanguages
}
// Validate culture name
cultureName = UtilCultureHelper.GetImplementedCulture(cultureName); // This is safe
// Modify current thread's cultures
Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo(cultureName);
Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture;
}
/// <summary>
/// i18n Custom caching
/// </summary>
/// <see cref="http://afana.me/post/aspnet-mvc-internationalization-part-2.aspx" title="Output Caching" />
/// <param name="context"></param>
/// <param name="arg"></param>
/// <returns></returns>
public override string GetVaryByCustomString(HttpContext context, string arg)
{
// It seems this executes multiple times and early, so we need to extract language again from cookie.
if (arg == "culture") // culture name (e.g. "en-US") is what should vary caching
{
string cultureName = null;
// Attempt to read the culture cookie from Request
HttpCookie cultureCookie = Request.Cookies["_culture"];
if (cultureCookie != null)
{
cultureName = cultureCookie.Value;
}
else
{
cultureName = Request.UserLanguages[0]; // obtain it from HTTP header AcceptLanguages
}
// Validate culture name
cultureName = UtilCultureHelper.GetImplementedCulture(cultureName); // This is safe
return(cultureName.ToLower()); // use culture name as cache key, "es", "en-us", "es-cl", etc.
}
return(base.GetVaryByCustomString(context, arg));
}
