[英]How to find out size of session in ASP.NET from web application?
如何从 Web 应用程序中找出 ASP.NET 中的会话大小?
If you're trying to get the size of Session during runtime rather than in debug tracing, you might want to try something like this:如果您想在运行时而不是在调试跟踪中获取 Session 的大小,您可能想尝试这样的事情:
long totalSessionBytes = 0;
BinaryFormatter b = new BinaryFormatter();
MemoryStream m;
foreach(var obj in Session)
{
m = new MemoryStream();
b.Serialize(m, obj);
totalSessionBytes += m.Length;
}
(Inspired by http://www.codeproject.com/KB/session/exploresessionandcache.aspx ) (灵感来自http://www.codeproject.com/KB/session/exploresessionandcache.aspx )
The code in the answer above kept giving me the same number.上面答案中的代码一直给我相同的数字。 Here is the code that finally worked for me:
这是最终对我有用的代码:
private void ShowSessionSize()
{
Page.Trace.Write("Session Trace Info");
long totalSessionBytes = 0;
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter b =
new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
System.IO.MemoryStream m;
foreach (string key in Session)
{
var obj = Session[key];
m = new System.IO.MemoryStream();
b.Serialize(m, obj);
totalSessionBytes += m.Length;
Page.Trace.Write(String.Format("{0}: {1:n} kb", key, m.Length / 1024));
}
Page.Trace.Write(String.Format("Total Size of Session Data: {0:n} kb",
totalSessionBytes / 1024));
}
I think you can find that information by adding Trace="true" to the page directive of a aspx page.我认为您可以通过将Trace="true"添加到 aspx 页面的页面指令来找到该信息。 Then when the page loads you can see a large number of details regarding the page request, including session information i think.
然后当页面加载时,您可以看到大量有关页面请求的详细信息,包括我认为的会话信息。
You can also enable tracing in your entire application by adding a line to your web.config file.您还可以通过在 web.config 文件中添加一行来在整个应用程序中启用跟踪。 Something like:
就像是:
<trace enabled="true" requestLimit="10" pageOutput="true" traceMode="SortByTime"
localOnly="true"/>
This is my code for getting all current Session variables with its size in kB into a Dictionary.这是我的代码,用于将所有当前会话变量及其大小(以 kB 为单位)放入字典中。
// <KEY, SIZE(kB)>
var dict = new Dictionary<string, decimal>();
BinaryFormatter b = new BinaryFormatter();
MemoryStream m;
foreach(string key in Session.Keys)
{
var obj = Session[key];
if (obj == null)
{
dict.Add(key, -1);
}
else
{
m = new MemoryStream();
b.Serialize(m, obj);
//save the key and size in kB (rounded to two decimals)
dict.Add(key, Math.Round(Convert.ToDecimal(m.Length) / 1024, 2));
}
}
//return dict
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