问题
What does the acronym "SPI" stand for in the Spring 3 type conversion API?
回答1:
SPI=Service Provider Interface. This is the way you define extensions or customizations
回答2:
FYI, Service Provider Interface is not a Spring framework specific term.
From Wikipedia,
Service Provider Interface (SPI) is an API intended to be implemented or extended by a third party. It can be used to enable framework extension and replaceable components.
来源：https://stackoverflow.com/questions/6898452/what-is-the-full-form-of-spi-in-the-spring-3-type-conversion-system