preface ：
Unconsciously ,2022 Half of the year has passed , As you in the technology circle , Are you ready for the latest changes ? In this article , We will use the most commonly used programming language in the programming industry Java
take as an example , Share the most mainstream technologies and tools .
catalogue ：
one , Programming protocol
( one ) Naming style .....
( two ) Constant definition ,
( three )
Code format .....
( four ) 00P Statute
( five )
Collection processing .
( six ) and Send processing
( seven ) Control statement .....
( eight )
Annotation specification ....
( nine )
other ....
two , Exception log
( one ) exception handling ...
( two )
Log specification ......
three , unit testing
four , Safety regulations
five ,MySQL database ...
( one ) Table building protocol ....
( two )
Index specification .....
( three ) SQL sentence
( four )
ORM mapping
six , engineering structure
( one ) Application layering ..
( two ) Two party library dependency ,
( three ) The server
seven , design specification
attach 1: Version history ...
attach 2: Explanation of proper terms ...
text ：
one , Programming protocol
two , Exception log
three , unit testing
four , Safety regulations
five ,MySQL database
six , engineering structure
seven , design specification
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