我如何从会话字节的数组中提取？ 在会话内部也写入了字节的数组

Question

Is it byte inside the session or data will be converted into the string after writing? if yes I think I can take it like this:

var res = Encoding.UTF8.GetBytes(Session["session_state"]);

or can I take it "as is" without converting into the byte array? like:

var res = Session["session_state"] as bytes[]; // or smth. like that

Answer 1

The data isn't converted. If the session object is serialized (depending on how it is stored), then it is deserialized before you get access to it again.

Just cast the value to a byte array:

var res = Session["session_state"] as byte[];

or:

var res = (byte[])Session["session_state"];

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Side note: A byte array can't reliably be converted to a string using UTF-8 encoding. UTF-8 is used the other way around, ie converting a string to bytes and then back. To make a string from bytes you would rather use something like base64.

Answer 2

You will always get what you stored in the session regardless of the mode you are using for the session state (inproc, state server, ...)

So the answer will be

var res = Session["session_state"] as byte[];