| 支持的类型 | java对应类型   |
| ------ | ----- |
| boolean    | Boolean |
| int        | Integer |
| integer| Integer |
| bigint     | Long |
| tinyint    | Byte |
| smallint | Short|
| varchar | String |
| real | Float |
| float  | Float|
| double | Double|
| date   | Date |
| timestamp | Timestamp |
| decimal |BigDecimal|