mapper-locations 配置多个
时间: 2023-04-20 15:02:21 浏览: 2097
在 Spring 中,我们可以使用 mapper-locations 属性来配置多个 Mapper 映射文件的位置。具体操作如下:
1. 在 MyBatis 的配置文件中,添加 mapper-locations 属性,如下所示:
```
<configuration>
<mappers>
<!-- 配置第一个 Mapper 映射文件 -->
<mapper resource="com/example/mapper/FirstMapper.xml"/>
<!-- 配置第二个 Mapper 映射文件 -->
<mapper resource="com/example/mapper/SecondMapper.xml"/>
<!-- 配置第三个 Mapper 映射文件 -->
<mapper resource="com/example/mapper/ThirdMapper.xml"/>
</mappers>
</configuration>
```
2. 在上述代码中,我们配置了三个 Mapper 映射文件,分别是 FirstMapper.xml、SecondMapper.xml 和 ThirdMapper.xml,它们的位置分别为 com/example/mapper 目录下。
3. 如果我们还有其他的 Mapper 映射文件需要配置,只需要在 mappers 标签中继续添加即可。
4. 配置完成后,我们就可以在代码中使用这些 Mapper 映射文件了。例如,我们可以通过 SqlSession 的 getMapper 方法获取 Mapper 接口的实现类,然后调用其中的方法来执行 SQL 语句。
总之,使用 mapper-locations 属性可以方便地配置多个 Mapper 映射文件,使得我们的代码更加简洁、易读。
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