Shulou(Shulou.com)06/02 Report--

This article introduces the relevant knowledge of "what is the SPI mechanism of Java". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The full name of SPI is Service Provider Interface. The average developer may not be familiar with it because this is for vendors or plug-ins. There is a more detailed introduction in the java.util.ServiceLoader documentation. The idea is actually similar to "Callback". The idea of "Callback" is that when we call API, we can write a piece of logic code and pass it into API, which will be called inside API when appropriate, so as to achieve some degree of "customization".

Typical is Collections.sort (List list,Comparator

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