强制所有ASP.NET缓存过期

Question

是否存在强制HttpContext的Cache集合中所有条目到期的方法或其他内容？

Answer 1

尝试这样的事情：

var enumerator = HttpRuntime.Cache.GetEnumerator();
Dictionary<string, object> cacheItems = new Dictionary<string, object>();

while (enumerator.MoveNext())
    cacheItems.Add(enumerator.Key.ToString(), enumerator.Value);

foreach (string key in cacheItems.Keys)
    HttpRuntime.Cache.Remove(key);

Answer 2

如何更新缓存到期？

protected void btnClearCache_Click(object sender, EventArgs e)
{

    var enumerator = HttpRuntime.Cache.GetEnumerator();

    while (enumerator.MoveNext())
        HttpRuntime.Cache.Insert(enumerator.Key.ToString(), enumerator.Value, 
            null, DateTime.Now , Cache.NoSlidingExpiration);
}