１.一种数据字典是JEECGBOOT自带的,另一种与我们自己建的表关联字典，多用于下拉搜索框或者下拉框等

２.新增数据字典

３.数据字典新增内容

４.下拉框使用结果

 [http-nio-8080-exec-10] INFO  org.jeecg.common.system.query.QueryGenerator:424 - --查询规则-->dict_id = 1493135904699654145
2022-02-15 11:17:23.186 [http-nio-8080-exec-10] DEBUG o.j.m.system.mapper.SysDictItemMapper.selectPage:143 - ==>  Preparing: SELECT COUNT(1) FROM sys_dict_item WHERE dict_id = ? 
2022-02-15 11:17:23.187 [http-nio-8080-exec-10] DEBUG o.j.m.system.mapper.SysDictItemMapper.selectPage:143 - ==> Parameters: 1493135904699654145(String)
2022-02-15 11:17:23.218 [http-nio-8080-exec-10] DEBUG o.j.m.system.mapper.SysDictItemMapper.selectPage:143 - ==>  Preparing: SELECT id,dict_id,item_text,item_value,description,sort_order,status,create_by,create_time,update_by,update_time FROM sys_dict_item WHERE dict_id = ? ORDER BY sort_order ASC LIMIT ?,? 
2022-02-15 11:17:23.219 [http-nio-8080-exec-10] DEBUG o.j.m.system.mapper.SysDictItemMapper.selectPage:143 - ==> Parameters: 1493135904699654145(String), 0(Long), 10(Long)
2022-02-15 11:17:23.250 [http-nio-8080-exec-10] DEBUG o.j.m.system.mapper.SysDictItemMapper.selectPage:143 - <==      Total: 2