如何控制重复的Ajax“post”提交？

I do not want to stop the user from clicking the same ajax button many times, but I want to exercise some control to prevent someone from maliciously clicking the button repeatedly which would cause repeated database requests. What is simple way to handle this on a jquery .post in asp.net mvc? If I put in a time delay, the experience client side will be ruined (?) I do not want to stop the user from clicking th