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README
Apache-2.0

spring-jba

JavaBeanAccessjava对象访问,基于JDK1.8+ 目前仅支持MySql :grimacing:

maven依赖

最新版本

注意:从1.7.0开始与之前版本不兼容 注意升级

<dependency>
    <groupId>xin.xihc</groupId>
    <artifactId>spring-jba</artifactId>
    <version>${jba.version}</version>
</dependency>

SpringJbaDemo演示Demo

https://gitee.com/leo_xi/SpringJbaDemo

注解解释

  1. @EnableJba 开启spring-jba创建表功能

  2. @Table 该注解是声明对象为表对象,属性包含如下:(不支持继承关系)

    1. value      1.2.0以后支持自定义表名
    2. remark     表的备注
    3. order      (1.5.0+新增)顺序,默认9999
    4. ignore     (1.5.0+新增)是否忽略表,默认false
  3. @Column 声明字段属性包含如下:(支持继承关系,可以使用父类的属性)

    1. value           列名,1.7.6+支持自定义列名
    2. defaultValue    默认值
    3. notNull         是否允许为空(默认允许)
    4. primary         是否是主键(默认否)
    5. policy          主键生成策略(默认无)
    6. length          长度限制
    7. remark          备注
    8. precision       精度(小于length)(默认4)
    9. charset         (1.5.5+新增)设置表字符编码,默认utf8
    10. order          (1.7.8+新增)对应表的列的顺序,默认0
  4. @Index (1.5.7+新增)该注解是声明(单列索引)表字段索引的,属性包含如下:(支持继承关系,可以使用父类的属性)

    1. value      索引名,用于分组,默认为idx_xxxx
    2. type       索引类型,默认为普通索引(Normal,Unique,FullText)
    3. remark     (1.5.8+新增)索引的备注
  5. @OnUpdateCurrentTimestamp (1.6.1+新增)该注解是声明表字段是否自动更新时间戳(java.util.Date/java.sql.Timestamp)(支持继承关系,可以使用父类的属性)

  6. @Alias 属性对应的列名(1.7.6+新增)主要用于查询时,列名与属性名不一致的问题。

  7. @GroupIndex 分组索引、复合索引(1.7.8+)用于创建复合索引、目前没有继承关系。

  8. @JsonHandler (1.8.9+)使用Json序列化到数据库(查询时并反序列化成对象)、支持继承。


类型转换对应表

Java类型(建议使用包装类) Mysql类型
String (1-64)char(65-19999)varchar/length>20000的为text
Byte tinyint(3)
Short smallint(5)
Integer int(10)
Long bigint(19)
Double double(length,precision)
Float double(length,precision)
BigDecimal decimal(length,precision)
Boolean tinyint(3)
java.util.Date datetime(precision)
java.sql.Date date
java.sql.Timestamp Timestamp(precision)
java.sql.Time Time(precision)
枚举类型 varchar(length)
其他 varchar(length)

使用教程

本项目为简易ORM,是基于spring-JdbcTemplate实现,支持事务管理,复杂操作则需要自己写SQL。

数据源连接池配置

#数据源配置
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test
spring.datasource.username=root
spring.datasource.password=*****
#使用阿里巴巴druid数据库连接池
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

#jba相关配置
#jba表结构更新模式NONE-不操作,CREATE-只创建表,UPDATE-只更新表结构,ALL-所有,CREATE_DROP-启动时创建关闭时删除
spring.jba.mode=NONE/ALL/CREATE/UPDATE/CREATE_DROP

#打印sql执行记录,日志采用上slf4j记录
logging.level.xin.xihc.jba.core.JbaTemplate=debug

初始化数据接口InitDataInterface

只需要实现如下方法:

void doInit(JbaTemplate jbaTemplate);

表对象的增删改查操作

实际使用: 首先主类入口添加注解@EnableJba
再需要使用的地方引入:

@Autowired
private JbaTemplate jbaTemplate;

分页对象PageInfo中增加needTotalCount是否需要查询总数量(默认true)

即可使用JbaTemplate的方法。。具体方法解析如下: 表对象(需要获取表名)-model,参数对象-params

1、public boolean insertModel(Object model); 插入单个对象INSERT INTO tblName (id,name) VALUES (:id,:name);

2、public void insertModels(Object... models); 批量插入多个相同表对象(建议一次性不超过50个)

3、public boolean updateModel(Object model, String... fieldNames) throws RuntimeException; 更新对象

4、public boolean deleteModel(Object model) throws RuntimeException; 删除对象

5、public <T> T queryColumn(String sql, Object params, Class<T> clazz); 只能查询某列的值,支持Map的params

6、public int queryCount(String sql, Object params); 查询数量,支持Map的params

7、public int queryCount(Object model); 查询某个对象的数量

8、public <T> T queryModelOne(Object model, Class<T> clazz, String... orderBy); 查询单个对象

9、public T queryMixModelOne queryOne(String sql, Object params, Class clazz); 查询单个混合(自定义)对象,支持Map的params

10、public <T> List<T> queryModelList(Object model, Class<T> clazz, PageInfo pageInfo, String... orderBy); 查询对象的列表

11、public List queryMixModelList queryList(String sql, Object params, Class clazz, PageInfo pageInfo ); 查询混合对象的列表,支持Map的params

12、public boolean executeSQL(final String sql); 执行某个sql语句

13、public boolean executeSQL(final String sql, Object params); 执行某个带参数的sql语句,支持Map的params

14、public NamedParameterJdbcTemplate getJdbcOperations(); 可以使用更多内部原生方法(例如:BOLB字段的处理、储存过程的调用)

15、public void batchUpdate(final String sql, Map<String, ?>... params); 批量执行sql,插入INSERT、UPDATE都可以

16、public void batchUpdate(final String sql, Object[] models); 批量执行sql,插入INSERT、UPDATE都可以

1.8.6 新增方法

  • 17、public <T> List<T> queryList(Select select, Class<T> clazz, PageInfo pageInfo); 列表查询数据库--Select
  • 18、public <T> T queryOne(Select select, Class<T> clazz); 单个查询数据库--Select单个查询
  • 19、public boolean update(Update update); 执行sql语句 - Update对象

联系&交流

QQ群号:340654726 Spring-Jba交流群

更新时间:2020-05-27

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