mybatis整合spring开启mapper.xml映射文件扫描
一般情况下，我们知道在使用mybatis的时候，必须在mybatis全局配置文件里配置映射文件。
代码如下：
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< mappers > < mapper resource = "/resources/mybatis/sys/ParamMapper.xml" /> < mapper resource = "/resources/mybatis/account/UmUserDevMapper.xml" /> < mapper resource = "/resources/mybatis/authz/AcctAuthorityMapper.xml" /> < mapper resource = "/resources/mybatis/authz/ApplicationMapper.xml" /> < mapper resource = "/resources/mybatis/authn/LoginMapper.xml" /> < mapper resource = "/resources/mybatis/audit/LogLoginMapper.xml" /> < mapper resource = "/resources/mybatis/audit/LogActionMapper.xml" /> </ mappers > |
但是与spring整合后，spring提供了mapperLocations属性来扫描指定路径下的映射文件。于是就可以省去每增加一个映射文件就要在mybatis-config.xml文件加一个配置的麻烦。
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<!-- 配置mybatis --> < bean id = "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean" > < property name = "dataSource" ref = "dataSource" /> < property name = "configLocation" value = "classpath:resources/mybatis/mybatis-config2.xml" ></ property > <!-- mapper扫描 --> < property name = "mapperLocations" value = "classpath:resources/mybatis/entity/*.xml" ></ property > </ bean > |
spring配置扫描mybatis的mapper文件注意
一般会将不业务的mapper文件放到不同的包中：
spring配置扫描就需要配置下面的方式（两个*）：
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<!-- mybatis文件配置，扫描所有mapper文件 --> < bean id = "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref = "dataSource" p:configLocation = "classpath:conf/mybatis-config.xml" p:mapperLocations = "classpath:mapper/**/*.xml" /> |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
原文链接：https://blog.csdn.net/lycyl/article/details/88615312
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