Spring MyBatis Mapper Interface annotation Method injection

The most recent project uses Mybatis-generator to generate MyBatis mapper.xml mapping files and mapper interfaces.
Originally used Spring-bean way to display injection, the code is as follows:

<bean id= "Articlemapper" class= "Org.mybatis.spring.mapper.MapperFactoryBean" >
    <property name= " Mapperinterface "value=" Com.kuanrf.gs.article.dao.ArticleMapper "/> <property name=" Sqlsessionfactory "
    ref= "Sqlsessionfactory"/>
</bean>

It's too much trouble to find that each MyBatis Mapper interface is so configured. It is optimized to adopt spring unified scanning automatic injection.
Application_spring_db.xml

<?xml version= "1.0" encoding= "UTF-8"?> <beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:x Si= "Http://www.w3.org/2001/XMLSchema-instance" xmlns:tx= "Http://www.springframework.org/schema/tx" Xsi:schema location= "Http://www.springframework.org/schema/beans Http://www.springframework.org/schema/beans/spring-bean S-4.2.xsd Http://www.springframework.org/schema/tx Http://www.springframework.org/schema/tx/spri Ng-tx-4.2.xsd "> <!--Configure DBCP data source--> <bean id=" DataSource "class=" Com.mchange.v2.c3p0.ComboPooledDa Tasource "destroy-method=" Close "> <property name=" driverclass "value=" ${jdbc.driver} "/> <  
        Property Name= "Jdbcurl" value= "${jdbc.url}"/> <property name= "user" value= "${jdbc.username}"/> <property name= "Password" value= "${jdbc.password}"/> <property name= "Initialpoolsize" value= Nection_pools.initial_poOl_size} "/> <property name= minpoolsize" value= "${connection_pools.min_pool_size}"/> Ty name= "maxpoolsize" value= "${connection_pools.max_pool_size}"/> <property name= "maxIdleTime" value= "${con" Nection_pools.max_idle_time} "/> <property name=" acquireincrement "value=" ${connection_pools.acquire_increme NT} "/> <property name=" checkouttimeout "value=" ${connection_pools.checkout_timeout} "/> </bean&gt  

    ; <!--configuration Mybatissqlsessionfactorybean--> <bean id= "Sqlsessionfactory" class= Actorybean "> <property name=" dataSource ref= "DataSource"/> <property name= "Configlocatio N "value=" Classpath:mybatis/mybatis.xml "/> <property name=" mapperlocations "value=" Classpath*:com/itclj/ma Gpie/**/*mapper.xml "/> </bean> <!--configuration sqlsessiontemplate--> <bean id=" Sqlsessiontempla TE "class=" org.mYbatis.spring.SqlSessionTemplate "> <constructor-arg name=" sqlsessionfactory "ref=" Sqlsessionfactory "/>" </bean> <!--Configure MyBatis Mapper interface--> <bean class= "Org.mybatis.spring.mapper.MapperScannerC Onfigurer "> <property name=" basepackage "value=" Com.itclj.magpie.**.dao "/> <property-name=" sql Sessiontemplatebeanname "value=" Sqlsessiontemplate "/> </bean> <!--transaction configuration--> <bean id=" tra Nsactionmanager "class=" Org.springframework.jdbc.datasource.DataSourceTransactionManager "> <property name= "DataSource" ref= "DataSource"/> </bean> <!--Configure transactions using the annotation annotation method-->   -driven transaction-manager= "TransactionManager"/> </beans>

The following code is for spring to self scan all DAO packages and assemble all the MyBatis interface files under it into the container.

<bean class= "Org.mybatis.spring.mapper.MapperScannerConfigurer" >
        <property name= "Basepackage" value= "Com.itclj.magpie.**.dao"/>
        <property name= "Sqlsessiontemplatebeanname" value= "SqlSessionTemplate" >
</bean>

MyBatis interface Mapper need to add @repository annotation, can directly in the service layer directly automatic assembly injection.
MyBatis Interface Mapper examples are as follows:

@Repository public
Interface Userbeanmapper extends basemapper<userbean,userbeanexample,long> {

}

When the service layer injects the MyBatis interface mapper, it needs to be injected into the construction method so that the injected mapper instance is not empty.

@Service (value = "UserService") public
class Userserviceimpl extends Baseserviceimpl<userbean, userbeanexample , Long> implements UserService {

    @Autowired () public
    Userserviceimpl (Userbeanmapper userbeanmapper) {
        This.setmapper (Userbeanmapper);
    }

The

Engineering directory structure is shown in the following illustration