What do they often say about middleware, where the middleware is understood?

What do they often say about middleware, where the middleware is understood?

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What do they often say about middleware, where the middleware is understood?

In fact, a lot of things can be called middleware, as long as it is connected through the interface of the two-tier system

For example, RPC calls, the components of the RPC call you use can be called middleware, because it connects the RPC service behind you and the client here
For example, the database Load Balancer agent, you access to the proxy, it goes to call the database behind

The functions of transmission and connection between systems can be understood as middleware such as: Mima, Hessian, HSF, etc.

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