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SqlBean 1.6.1 发布，Mybatis 自动建表、维护表结构

日期：2024-07-30点击：145收藏

Sqlbean

介绍

Sqlbean是一款通过Java语法生成SQL语句的ORM插件，其理念是弱化在开发阶段对数据库的操作，无需先建表再开发，可直接编写实体类和业务代码，项目启动后自动创建表和维护表结构。内置大量常用方法，支持灵活的条件查询，无DAO层，在项目中几乎不需要编写SQL语句，帮助你快速进行业务功能开发，除了支持Mybatis也同时支持Spring Jdbc。

🚀特点: 多数据源, 动态Schema, 读写分离, 自动建表, 自动维护表结构, 联表查询, 乐观锁, 分页

💻环境: JDK8+, Mybatis3.2.4+, (Spring MVC 4.1.2+, Spring Boot 1.x, Spring Boot 2.x)

💿数据库: Mysql, MariaDB, Oracle, Sqlserver2008+, Postgresql, DB2, Derby, Sqlite, HSQL, H2

Sqlbean For Android请移步这里👉 gitee(推荐)、 github

简单上手

1.引入Maven依赖

 <dependency>  <groupId>cn.vonce</groupId>  <artifactId>vonce-sqlbean-spring</artifactId>  <version>1.6.1</version> </dependency>

2.标注实体类

 @SqlTable("d_user") public class User {  @SqlId(type = IdType.SNOWFLAKE_ID_16)  private Long id;  private String name;  private Integer age;  private Integer stature;  private Integer gender;  private String phone;  private Date createTime;  /**省略get set方法*/ }

3.无需Dao层，Service层接口只需继承SqlBeanService<实体类, id类型>

 public interface UserService extends SqlBeanService<User, Long> {  //这里可以写自己封装的方法 }

4.Service实现类只需继承MybatisSqlBeanServiceImpl<实体类, id类型>和实现你的Service接口

 //使用Spring Jdbc的话将继承的父类改成SpringJdbcSqlBeanServiceImpl即可 @Service public class UserServiceImpl extends MybatisSqlBeanServiceImpl<User, Long> implements UserService { }

5.Controller层

 @RequestMapping("user") @RestController public class UserController {  @Autowired  private UserService userService;  //查询  @GetMapping("select")  public RS select() {  //查询列表  List<User> list = userService.select();  list = userService.selectBy(Wrapper.where(Cond.gt(User::getId, 10)).and(Cond.lt(User::getId, 20)));  //指定查询  list = userService.select(new Select().column(User::getId, User::getName, User::getPhone).where().gt(User::getId, 10));  //查询一条  User user = userService.selectById(1);  user = userService.selectOneBy(Wrapper.where(eq(User::getId, 1001)));  //sql语义化查询《20岁且是女性的用户根据创建时间倒序，获取前10条》  list = userService.select(new Select().column(User::getId, User::getName, User::getPhone).where().eq(User::getAge, 22).and().eq(User::getGender, 0).back().orderByDesc(User::getCreateTime).page(0, 10));  //联表查询《20岁且是女性的用户根据创建时间倒序，查询前10条用户的信息和地址》  Select select = new Select();  select.column(User::getId, User::getName, User::getPhone, UserAddress::getProvince, UserAddress::getCity, UserAddress::getArea, UserAddress::getDetails);  select.innerJoin(UserAddress.class).on().eq(UserAddress::getId, User::getId);  select.where().gt(User::getAge, 22).and().eq(User::getGender, 0);  select.orderByDesc(User::getCreateTime);  select.page(0, 10);  //查询Map  Map<String, Object> map = userService.selectMap(select);  List<Map<String, Object>> mapList = userService.selectMapList(select);  return super.successHint("获取成功", list);  }  //分页  @GetMapping("getList")  public Map getList(HttpServletRequest request) {  // 查询对象  Select select = new Select();  ReqPageHelper<User> pageHelper = new ReqPageHelper<>(request);  pageHelper.paging(select, userService);  return pageHelper.toResult("获取列表成功");  }  //更新  @PostMapping("update")  public RS update(User user) {  //根据bean内部id更新  long i = userService.updateByBeanId(user);  //根据条件更新  //i = userService.updateBy(Wrapper.where(Cond.gt(User::getAge, 22)).and(Cond.eq(User::getGender, 1)));  //指定更新某个字段 UPDATE user SET gender = 1, name = 'Jovi' ,age = age + 1 WHERE = id = 111  userService.update(new Update<User>().set(User::getGender, 1).set(User::getName, "Jovi").setAdd(User::getAge, User::getAge, 1).where().eq(User::getId, 111).back());  if (i > 0) {  return super.successHint("更新成功");  }  return super.othersHint("更新失败");  }  //删除  @PostMapping("deleteById")  public RS deleteById(Integer[] id) {  //根据id删除  long i = userService.deleteById(id);  //根据条件删除  //i = userService.deleteBy(Wrapper.where(gt(User::getAge, 22)).and(eq(User::getGender, 1)));  if (i > 0) {  return super.successHint("删除成功");  }  return super.othersHint("删除失败");  }  //插入  @PostMapping("add")  public RS add() {  List<User> userList = new ArrayList<>();  for (int i = 0; i < 100; i++) {  User user = new User(i, "name" + i);  userList.add(user);  }  userService.insert(userList);  return successHint("成功");  } }