创建实体 官方英文
JHipster通过 entity sub-generator 自动创建前后端相应代码
JHipster entity sub-generator 根据项目类型，和选项，自动创建相应代码（gateway和Monolithic application 会创建前后端代码，uaa,microservice创建后端代码）
对于关联关系可以参加 管理实体间映射关系
对于简单(字段少)，实体类数量少的实体创建，建议使用命令行，打开项目文件夹
yo jhipster:entity <实体类名> [options] 可以通过yo jhipster:entity --help 查看支持的选项
yo jhipster:entity --help
Usage:
yo jhipster:entity [options] <name>
Options:
-h, --help # Print the generator's options and usage(打印生成器支持的选项)
--skip-cache # Do not remember prompt answers(不记住之前选项，默认记住) Default: false
--skip-install # Do not automatically install dependencies(不自动安装依赖项，默认安装) Default: false
--regenerate # Regenerate the entity without presenting an option to update it(重新生成) Default: false
--table-name # Specify table name that will be used by the entity(指定生成的表名)
--fluent-methods # Generate fluent methods in entity beans to allow chained object construction Default: true
--angular-suffix # Use a suffix to generate AngularJS routes and files, to avoid name clashes(增加angular文件后缀，防止文件名字冲突)
--skip-server # Skip the server-side code generation(不生成服务端代码，默认生成) Default: false
--skip-client # Skip the client-side code generation(不生成客户端代码，默认生成) Default: false
Arguments:
name Type: String Required: true
Description:
Creates a new JHipster entity: JPA entity, Spring MVC REST controller, AngularJS controller, service and view, all wired up together
Example:
yo jhipster:entity Foo
This will create:
.jhipster.Foo.json
src/main/java/package/domain/Foo.java
src/main/java/package/repository/FooRepository.java
src/main/java/package/web/rest/FooResource.java
src/main/resources/config/liquibase/changelog/20150128232313_added_entity_Foo.xml
src/main/webapp/app/entities/foo/foos.html
src/main/webapp/app/entities/foo/foo-detail.html
src/main/webapp/app/entities/foo/foo.js
src/main/webapp/app/entities/foo/foo.controller.js
src/main/webapp/app/entities/foo/foo-detail.controller.js
src/main/webapp/app/entities/foo/foo.service.js
src/test/java/package/web/rest/FooResourceTest.java
src/main/webapp/i18n/en/foo.json
src/main/webapp/i18n/fr/foo.json
对于比较复杂的实体（数量多，关系复杂，字段多），建议使用JHipster UML 和JDL Studio 和 jhipster ide
例如生成 Author和Book两个实体
命令行
创建author实体类
yo jhipster:entity author (创建author实体类)
The entity Author is being created.
Generating field #1 (第一个字段)
? Do you want to add a field to your entity? Yes
? What is the name of your field? name
? What is the type of your field? String
? Do you want to add validation rules to your field? No
================= Author =================
Fields
name (String)
Generating field #2
? Do you want to add a field to your entity? Yes
? What is the name of your field? birthDate
? What is the type of your field? LocalDate
? Do you want to add validation rules to your field? No
================= Author =================
Fields
name (String)
birthDate (LocalDate)
Generating field #3
? Do you want to add a field to your entity? No (停止创建)
================= Author =================
Fields
name (String)
birthDate (LocalDate)
Generating relationships to other entities
? Do you want to add a relationship to another entity? Yes(创建关联关系)
? What is the name of the other entity? book
? What is the name of the relationship? book
? What is the type of the relationship? one-to-many
? What is the name of this relationship in the other entity? author
================= Author =================
Fields
name (String)
birthDate (LocalDate)
Relationships
book (Book) one-to-many
Generating relationships to other entities
? Do you want to add a relationship to another entity? No
================= Author =================
Fields
name (String)
birthDate (LocalDate)
Relationships
book (Book) one-to-many
? Do you want to use a Data Transfer Object (DTO)? No, use the entity directly (是否创建DTO?)
? Do you want to use separate service class for your business logic? No, the REST controller should use the repository directly (对于业务逻辑是否使用分离的服务类,使用REST controller和repository)
? Do you want pagination on your entity? No(是否分页)
Everything is configured, generating the entity...
create .jhipster\Author.json
create src\main\java\com\shunneng\app\domain\Author.java
create src\main\java\com\shunneng\app\repository\AuthorRepository.java
create src\main\java\com\shunneng\app\web\rest\AuthorResource.java
conflict src\main\resources\ehcache.xml
? Overwrite src\main\resources\ehcache.xml? overwrite this and all others
force src\main\resources\ehcache.xml
create src\main\resources\config\liquibase\changelog\20160926160804_added_entity_Author.xml
force src\main\resources\config\liquibase\master.xml
create src\main\webapp\app\entities\author\authors.html
create src\main\webapp\app\entities\author\author-detail.html
create src\main\webapp\app\entities\author\author-dialog.html
create src\main\webapp\app\entities\author\author-delete-dialog.html
force src\main\webapp\app\layouts\navbar\navbar.html
create src\main\webapp\app\entities\author\author.state.js
create src\main\webapp\app\entities\author\author.controller.js
create src\main\webapp\app\entities\author\author-dialog.controller.js
create src\main\webapp\app\entities\author\author-delete-dialog.controller.js
create src\main\webapp\app\entities\author\author-detail.controller.js
create src\main\webapp\app\entities\author\author.service.js
create src\main\webapp\i18n\zh-cn\author.json
force src\main\webapp\i18n\zh-cn\global.json
create src\test\javascript\spec\app\entities\author\author-detail.controller.spec.js
create src\test\javascript\e2e\entities\author.js
create src\test\java\com\shunneng\app\web\rest\AuthorResourceIntTest.java
create src\test\gatling\simulations\AuthorGatlingTest.scala
Running gulp Inject to add javascript to index
创建Book实体类
基本同上，不重复贴代码了
JDL Studio
需要遵循 JDL 语言规范