管理静态属性的最佳方法

Question

I have this code:

public static class ProcessClass()
{
     public static string MyProp {get;set;}

     public static void ProcessMethod(InputObject input)
     {
         if(String.IsNullOrEmpty(MyProp)
              MyProp = input.Name();

         //do stuff

         MyProp = null;

     }   

 }

Now, everything except for MyProp was already in place. I needed a way to track the original input.Name throughout the code since it can change and also because ProcessMethod could get called again internally with a different input.Name value due to business rules, and I need to state that this second calling came from input.Name .

Obviously, this is bad since if two people do this at the same time, they will both share the same MyProp value, and simply making is null at the end seems dangerous and hacky. I don't really have the option of changing this method to be non static because that would involve changing A LOT of the codebase, which isn't really an option.

What are ways around using a static property, but still being able to keep my original input.Name value without risking thread safety issues? One option I am thinking is is to have every method accept an input.Name() and track is that way(and remove the MyProp ), but I can picture that getting out of hand fast, and extremely messy.

I don't need to have this be a property, but if it is it obviously needs to be static in this class.

Answer 1

由于它可能是多用户环境，因此将字符串替换为ConcurrentDictionary ，在其中将input.Name()存储为Value并将用户的唯一标识符（id，名称等）存储为Key 。