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README
Apache-2.0

简介

记得我第一次看开源项目就是Halo, 所以我把我的练手项目起个名字叫做 Halo-Plus

技术体系

后端:

框架\工具 说明 版本
JDK Java开发语言 17
SpringBoot 容器+MVC框架 3.2.0
MybatisPlus ORM框架 3.5.5
Hutool 一个小而全的Java工具类库 5.8.25
Sa-Token 一个简单、优雅的权限控制框架 1.37.0

项目结构

halo-plus
├── sql -- 该项目的 sql 文件
├── xiumu-common -- 公共通用工具类库
		├── common-core -- 工具类封装
			    └── annotation -- 自定义注解
			    └── constants -- 全局常量
			    └── entity -- entity 基类
			    └── enums -- 枚举类
			    └── exception -- 全局异常处理
			    └── page -- 分页参数封装
			    └── result -- 统一返回值
			    └── tree -- 树形结构生成工具
			    └── utils -- 其他工具类
├── xiumu-dao -- 持久层模块
		└── java -- 持久层接口
		└── resources -- mapper的xml文件
├── xiumu-pojo -- 实体类模块
		└── java -- POJO 对象
├── xiumu-service -- 业务层模块
		└── java -- 业务层接口与实现类
├── xiumu-web -- 控制层模块
		└── config -- 控制层的配置,例如mybatis,satoken的配置
		└── controller -- 控制层对象

模块说明:

xiumu-common

  1. 这是一个公共模块,封装的都是一些常用的工具类,引入了 Hutool
  2. 该模块随着项目的越做越大,也会补充很多工具类,例如多数据源的配置,日志的配置,redis缓存等配置
  3. 或许可以发展成一个单独的项目,作为技术沉淀,技术选型的统一。
  4. 工具的统一也会避免一个项目使用三个json工具,三个POI工具,三个Http工具

其他则按照MVC模型分模块

项目功能

基本RBAC权限模型

  1. 权限管理: 配置菜单权限与按钮权限
  2. 角色管理:配置角色拥有的权限
  3. 用户管理:配置用户信息以及用户的角色

开发规范

  1. 领域对象 POJO ,专指只有 setter/getter/toString 的 简单类,在这里,Entity/DO/DTO/VO 统称为 POJO。

    • Entity

      • 通过 DAO 层向上传输数据源对象
      • 此对象与数据库表结构一一对应
      • 不能出现表中没有的字段
      • 不能出现与数据库无关的注解或者方法,比如 POI 注解, 参数校验注解
    • DO

      • 通过持久层向上传输数据源对象
      • 两个或多个表连接查询的对象, 将连表后的数据封装成 DO 返回
      • 命名规范:对象以 DO 结尾,正例: userDO, 反例: userDo
    • DTO

      • 数据传输对象。
      • 该对象一般用作接收前端传递的新增、修改的数据
      • 参数校验注解用在该对象上
      • 命名规范:对象以 DTO 结尾,正例: userDTO, 反例: userDto
    • Query

      • 数据查询对象,接收前端查询请求参数
      • 注意超过 2 个参数的查询需要封装
      • 命名规范:对象以 Query 结尾,正例: userQuery
    • VO

      • 显示层对象,通常是 controller 层向外传输的对象
      • 命名规范:对象以 VO 结尾,正例: userVO, 反例: userVo
  2. Controller 控制层

    • 不可以在class上添加 @RequestMapping 注解来添加一个父路由,只能在方法上写全部路由

      反例:

      @RequestMapping ("/department")
      public class DepartmentController {
      
          @GetMapping("/page")
          public ResponseDTO<List<DepartmentVO>> listDepartment() {
              return departmentService.listDepartment();
          }
      }

      正例:

      public class DepartmentController {
      
          @GetMapping("/department/page")
          public ResponseDTO<List<DepartmentVO>> listDepartment() {
              return departmentService.listDepartment();
          }
      }
    • controller 负责协同和委派业务,充当路由的角色,每个方法要保持简洁

      • 不做任何的业务逻辑操作
      • 不做任何的业务校验,参数校验只允许使用@Valid 注解做简单的校验
      • 尽量不做任何的数据组合、拼装、赋值等操作
    • controller 层使用 restful 风格。URI 使用资源名称,而不是动作来描述。

      反例:

      GET     /getUser/1    查询 ID  1 的用户
      POST    /createUser   新建一个用户
      PUT     /updateUser/1 修改 ID  1 的用户
      DELETE  /deleteUser/1 删除 ID  1 的用户

      正例

      GET     /user/1 查询 ID  1 的用户
      POST    /user   新建一个用户
      PUT     /user/1 修改 ID  1 的用户
      DELETE  /user/1 删除 ID  1 的用户
    • 特殊情况再说

  3. Service 业务层

    • service 层方法命名遵循自解释原则,好的方法名可以直接简单明了的表示该方法的作用
    • 尽量少用 Wrapper 条件构造器,将 sql 写到 xml 中 做到 sql 与代码之间的隔离
    • 简单查询可以使用 Wrapper 条件构造器
  4. Dao 持久层

    • 方法命名尽量以 sql 语义命名

    • 方法应当与业务无关

      正例:

      • 插入 insertXXX
      • 更新 updateXXX
      • 查询 selectXXX
      • 删除 deleteXXX
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简介

记得我第一次看开源项目就是Halo, 这是我的第一次练手项目不如叫做 Halo-Plus 展开 收起
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