WebApr 24, 2024 · 4、@MapperScan注解的使用. 作用:指定要变成实现类的接口所在的包,包下面的所有接口在编译之后都会生成相应的实现类. 添加位置:是在Springboot启动类上面添加,. @SpringBootApplication @MapperScan ("cn.mybatis.mappers") public class SpringbootMybatisDemoApplication { public static void main ... WebAnnotation Type MapperScan. Use this annotation to register MyBatis mapper interfaces when using Java Config. It performs when same work as MapperScannerConfigurer via MapperScannerRegistrar . Either basePackageClasses () or basePackages () (or its alias value ()) may be specified to define specific packages to scan.
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Web这点可以在 MapperRegistry 类中的源代码中查看。. @Mapper 注解针对的是一个一个的类,相当于是一个一个 Mapper.xml 文件。. 而一个接口一个接口的使用 @Mapper,太麻烦了,于是 @MapperScan 就应用而生了。. @MapperScan 配置一个或多个包路径,自动的扫描这些包路径下的类 ... WebNov 2, 2016 · I am pulling data from two different databases using MyBatis 3.3.1 and Spring 4.3. The two configuration classes to scan for mappers look at follows: @Configuration @MapperScan (value="com.mapper1.map", SqlSessionFactoryRef="sqlSessionFactory1") public class AppConfig { @Bean public DataSource getDataSource1 () { … tenngrand.com
浅析@MapperScan原理[通俗易懂] - 腾讯云开发者社区-腾讯云
Webmapper接口怎么被spring管理的1.通过@MapperScan扫描到对应的接口2.对接口进行动态代理,代理类做到的事情就是拿到sql,连接数据库,执行sql3.通过spring扩展机制Fact WebJan 5, 2012 · There are three different ways to do it: Using the element. Using the annotation @MapperScan Using a classic Spring xml file and registering the MapperScannerConfigurer Both and @MapperScan are features introduced in MyBatis-Spring 1.2.0. @MapperScan requires Spring 3.1+. WebMay 28, 2024 · 总结. @MapperScan扫描指定的包,对每个Mapper,以它的名字注册了实际类型是MapperFactoryBean的Bean定义。. 在处理@autowired标注的Mapper时,会返回MapperFactoryBean.getObject的调用结果,也就是 getSqlSession ().getMapper (this.mapperInterface); 了。. 上一步的结果会导致 @Autowired SomeMapper ... tenn football coaching staff