Java类型与JDBC类型
| JDBC类型 | Java Object类型 |
|---|---|
| CHAR | java.lang.String |
| VARCHAR | java.lang.String |
| LONGVARCHAR | java.lang.String |
| NUMERIC | java.math.BigDecimal |
| DECIMAL | java.math.BigDecimal |
| BIT | java.lang.Boolean |
| TINYINT | java.lang.Integer |
| SMALLINT | java.lang.Integer |
| INTEGER | java.lang.Integer |
| BIGINT | java.lang.Long |
| REAL | java.lang.Float |
| FOAT | java.lang.Double |
| DOUBLE | java.lang.Double |
| BINARY | byte[] |
| VARBINARY | byte[] |
| LONGVARBINARY | byte[] |
| DATE | java.sql.Date |
| TIME | java.sql.Time |
| TIMESTAMP | java.sql.Timestamp |
Java类型与数据库表字段类型
| java类 | mysql数据库 | |
|---|---|---|
| java.lang.Byte | byte | TINYINT |
| java.lang.Short | short | SMALLINT |
| java.lang.Integer | integer | INGEGER |
| java.lang.Long | long | BIGINT |
| java.lang.Float | float | FLOAT |
| java.lang.Double | double | DOUBLE |
| java.lang.BigDecimal | big_decimal | NUMERIC |
| java.lang.Boolean | boolean | BIT |
| java.lang.String | string | VARCHAR |
| java.lang.Boolean | yes_no | CHAR(1)('Y'或'N') |
| java.lang.Boolean | true_false | CHAR(1)(‘Y’或'N') |
| java.uitl.Date / java.sql.Date | date | DATE |
| java.sql.Time | time | TIME |
| java.sql.Timestamp | timestamp | TIMESTAMP |
| java.uitl.Calendar | celendar | TIMESTAMP |
| java.uitl.Calendar | calendar | TIMESTAMP |
| java.io.Serializable | serializable | VARBINARY/BLOB |
| java.sql.Clob | clob | CLOB |
| java.sql.Blob | blob | BLOB |
| java.lang.Class | class | VARCHAR |
| java.uitl.Locale | locale | VARCHAR |
| java.uitl.TimeZone | timezone | VARCHAR |
| java.uitl.Currency | currency | VARCHAR |