I recently read Martin flower's book "patterns of enterprise application architecture" ~

Although I just turned a part, I can find that this is indeed a good book. I have explained the common architectures of various enterprise applications in a simple way,

CodeThe examples are mainly Java and C #. For the mode itself, we will talk about the logic mode of the domain, the data source architecture mode, the object-link behavior mode, and the object-link structure mode, object-relational metadata ing mode, WEB presentation mode, distribution mode, etc,

In the object-relational structure model, the popular o/R Mapping technology is well explained, including indentity field, foreign key mapping, Association Table mapping, dependent mapping and serialized lob.