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SqlBean 1.6.2 发布，Mybatis 自动建表、维护表结构

日期：2024-08-09点击：137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

SuperCode代码生成项目👉 https://gitee.com/iJovi/supercode

SqlBean使用例子以及代码生成例子点击这里👉 https://gitee.com/iJovi/sqlbean-example

快速开始

1.引入Maven依赖

 <dependency>  <groupId>cn.vonce</groupId>  <artifactId>vonce-sqlbean-spring</artifactId>  <version>1.6.2</version> </dependency>

2.标注实体类

 @Data public class BaseEntity {  @SqlId(type = IdType.SNOWFLAKE_ID_16)  @SqlColumn(notNull = true, remarks = "唯一id")//字段不能为null,表字段注释  private Long id;  @SqlColumn(remarks = "创建者")//表字段注释  private Long creator;  @SqlDefaultValue(with = FillWith.INSERT)  @SqlColumn(remarks = "创建时间")//表字段注释  private Date createTime;  @SqlColumn(remarks = "更新者")//表字段注释  private Long updater;  @SqlDefaultValue(with = FillWith.UPDATE)  @SqlColumn(remarks = "更新时间")//表字段注释  private Date updateTime;  @SqlLogically  @SqlColumn(remarks = "是否删除(0正常 1删除)")//表字段注释  private Boolean deleted; } @Data //autoAlter设置为true，实体类有变动时自动同步表结构 @SqlTable(autoAlter = true, value = "t_user", remarks = "用户") public class User extends BaseEntity {  @SqlColumn(notNull = true, remarks = "用户名")//字段不能为null,表字段注释  private String userName;  @SqlColumn(remarks = "姓名")//表字段注释  private String nickName;  @SqlColumn(notNull = true, remarks = "手机号码")//表字段注释  private String mobilePhone;  @SqlColumn(notNull = true, remarks = "密码")//表字段注释  private String password;  @SqlColumn(notNull = true, remarks = "性别")//表字段注释  private Integer gender;  @SqlColumn(remarks = "年龄")//表字段注释  private Integer age;  @SqlColumn(remarks = "电子邮箱")//表字段注释  private String email;  @SqlColumn(remarks = "头像", oldName = "head_portrait")//表字段注释,修改表字段名称需要在oldName指定旧的名称  private String avatar;  @SqlDefaultValue(with = FillWith.INSERT)  @SqlColumn(notNull = true, remarks = "状态(0正常 1停用)")//字段不能为null,表字段注释  private UserStatus status; }

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::getUserName, User::getMobilePhone).where().gt(User::getId, 10));  //查询一条  User user = userService.selectById(1L);  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::getUserName, User::getMobilePhone).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::getUserName, User::getMobilePhone, 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");  }    //统计（函数使用）  @GetMapping("getStatistics")  public Result getStatistics() {  Select select = new Select();  select.column(SqlFun.count(User::getId), "count").column(SqlFun.avg(User::getAge));  select.where().gt(SqlFun.date_format(User::getCreateTime, "%Y-%m-%d"), "2024-06-24");  select.groupBy(User::getGender);  select.orderByDesc("count");  List<Map<String, Object>> mapList = userService.selectMapList(select);  return Result.success(mapList);  }  //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::getUserName, "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");  } }