Package Naming and URL Path Naming Rules

Package name: Use lowercase uniformly, between dot separators, English words with one and only one natural semantic meaning, use singular form.
URL path name: uniformly use lowercase, between slashes, English words with one and only one natural semantic meaning, use singular form.

Most of the time, this is logical and can establish a corresponding relationship with business logic. For example: the package name corresponding to the account opening function should be account.open, not openAccount; other functions under the account module should also be placed under the account package, such as the account cancellation function account.close.

The rules for naming packages and URL paths are similar. There should be a corresponding relationship with the business logic. Following the principle of high cohesion and low coupling, related business modules are placed under a unified level.

Standards in Ali's "Java Development Manual"

[Mandatory] The package name is uniformly lowercase, and there is only one English word with natural semantics between dot separators. The package name is uniformly used in singular form, but if the class name has a plural meaning, the class name can use plural form.

Positive example: the application tool class package name is com.alibaba.ei.kunlun.aap.util, and the class name is MessageUtils (this rule refers to the framework structure of spring)

Package Naming/URL Naming

meaning	logical level	package name	URL address
Futures-Recommendation-Account Opening	Futures-Recommendation-Account Opening	futures.recommend.account.open	futures/recommend/account/open
Futures-account opening	Futures-Account-Account Opening	futures.account.open	futures/account/open
Futures - Cancellation	Futures-Account-Close account	futures.account.close	futures/account/close
Futures - frozen account	Futures-Account-Freeze	futures.account.freeze	futures/account/freeze
Futures-activate account (activate account after first account opening)	Futures-Account-Activation (account activation after first account opening)	futures.account.activate	futures/account/activate
Futures - Account Reactivation (Account reactivation after freezing)	Futures-Account-Reactivate (reactivate account after freezing)	futures.account.reactivate	futures/account/reactivate

Example package structure

futures
- account
  - open
  - close
  - freeze
  - activate
  - reactivate