Mybatis使用常见类型的类型别名

拼搏现实的明天。 2022-11-28 15:29 187阅读 0赞

> <table> 
>  <tbody> 
>   <tr> 
>    <td><strong>Mybatis总结2020</strong></td> 
>    <td><strong><a href="https://blog.csdn.net/libusi001/article/details/100066086" rel="nofollow">https://blog.csdn.net/libusi001/article/details/100066086</a></strong></td> 
>   </tr> 
>  </tbody> 
> </table>
> 
>     /**
>          * @param id
>          * @return int 
>          */
>         int selectUserById(String id);
> 
>     <select id="selectUserById" resultType="_int">
>             select * from user where id = #{id}
>     </select>
> 
> **下面是常见可以使用别名的类型 (注意基本类型名称重复导致的特殊处理)**
> 
> <table> 
>  <thead> 
>   <tr> 
>    <th>别名</th> 
>    <th>映射的类型</th> 
>   </tr> 
>  </thead> 
>  <tbody> 
>   <tr> 
>    <td>_byte</td> 
>    <td>byte</td> 
>   </tr> 
>   <tr> 
>    <td>_long</td> 
>    <td>long</td> 
>   </tr> 
>   <tr> 
>    <td>_short</td> 
>    <td>short</td> 
>   </tr> 
>   <tr> 
>    <td>_int</td> 
>    <td>int</td> 
>   </tr> 
>   <tr> 
>    <td>_integer</td> 
>    <td>int</td> 
>   </tr> 
>   <tr> 
>    <td>_double</td> 
>    <td>double</td> 
>   </tr> 
>   <tr> 
>    <td>_float</td> 
>    <td>float</td> 
>   </tr> 
>   <tr> 
>    <td>_boolean</td> 
>    <td>boolean</td> 
>   </tr> 
>   <tr> 
>    <td>string</td> 
>    <td>String</td> 
>   </tr> 
>   <tr> 
>    <td>byte</td> 
>    <td>Byte</td> 
>   </tr> 
>   <tr> 
>    <td>long</td> 
>    <td>Long</td> 
>   </tr> 
>   <tr> 
>    <td>short</td> 
>    <td>Short</td> 
>   </tr> 
>   <tr> 
>    <td>int</td> 
>    <td>Integer</td> 
>   </tr> 
>   <tr> 
>    <td>integer</td> 
>    <td>Integer</td> 
>   </tr> 
>   <tr> 
>    <td>double</td> 
>    <td>Double</td> 
>   </tr> 
>   <tr> 
>    <td>float</td> 
>    <td>Float</td> 
>   </tr> 
>   <tr> 
>    <td>boolean</td> 
>    <td>Boolean</td> 
>   </tr> 
>   <tr> 
>    <td>date</td> 
>    <td>Date</td> 
>   </tr> 
>   <tr> 
>    <td>bigdecimal</td> 
>    <td>BigDecimal</td> 
>   </tr> 
>   <tr> 
>    <td>object</td> 
>    <td>Object</td> 
>   </tr> 
>   <tr> 
>    <td>map</td> 
>    <td>Map</td> 
>   </tr> 
>   <tr> 
>    <td>hashmap</td> 
>    <td>HashMap</td> 
>   </tr> 
>   <tr> 
>    <td>list</td> 
>    <td>List</td> 
>   </tr> 
>   <tr> 
>    <td>arraylist</td> 
>    <td>Arraylist</td> 
>   </tr> 
>   <tr> 
>    <td>collection</td> 
>    <td>Collection</td> 
>   </tr> 
>   <tr> 
>    <td>iterator</td> 
>    <td>Iterator</td> 
>   </tr> 
>  </tbody> 
> </table>
> 
>