java - Mybatis Spring多数据库Java配置

Question

我正在使用 Spring 和 Mybatis，并且我有两个数据库，第一个数据库的配置相对容易，但我无法使用 Spring 和事务处理第二个数据库，这是我的代码

@Configuration
@ComponentScan(basePackages = {"hernandez.service", "hernandez.dao"})
@EnableTransactionManagement
@MapperScan(basePackages="hernandez.mapper" ) 
@Import(DbConfig2.class)
public class AppConfig {

@Bean(name = "dataSource")
public DataSource dataSource() {
    DriverManagerDataSource ds = new DriverManagerDataSource("com.mysql.jdbc.Driver",
            "jdbc:mysql://localhost:3306/northwind", "root", "");
    return ds;
}

@Bean
public SqlSessionFactoryBean sqlSessionFactory() {
    SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
    factoryBean.setDataSource(dataSource()); 
    return factoryBean;
}

@Bean(name = "transactionManager")
public PlatformTransactionManager transactionManager() {
    return new DataSourceTransactionManager(dataSource());
}
}

@Configuration
@MapperScan("loli.mapper" ) 
public class DbConfig2 {
@Bean(name = "dataSource_2")
public DataSource dataSource2() {
    DriverManagerDataSource ds = new DriverManagerDataSource("com.mysql.jdbc.Driver",
            "jdbc:mysql://localhost:3306/dmsolut_dmsms", "root", "");
    return ds;
}

@Bean
public SqlSessionFactory sqlSessionFactory2() throws Exception{
    SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
    factoryBean.setDataSource(dataSource2());
    return factoryBean.getObject();
}

@Bean(name = "transactionManager_2")
public PlatformTransactionManager transactionManager() {
    return new DataSourceTransactionManager(dataSource2());
}
}

有没有办法让这个工作与纯 Spring Java 配置或至少与一些 XML 一起工作？没有官方文档可以让两个数据库在 Mybatis-Spring 项目中工作

Answer 1

我的项目中现在使用了带有 mybatis 的多数据源。这是一个示例，添加到您的 application.xml

  <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
    <property name="url" value="${center.connectionURL}"/>
    <property name="username"  value="${userName}"/>
    <property name="password" value="${password}"/>
</bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.xxx.dao.center"/>
    <property name="sqlSessionFactoryBeanName" value="cneterSqlSessionFactory"/>
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" name="cneterSqlSessionFactory">
    <property name="dataSource" ref="dataSource"></property>
    <property name="mapperLocations" value="classpath*:mapperConfig/center/*.xml"/>
    <property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<!--center db end-->
<!--exdb-->
<bean id="dataSourceEx" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
    <property name="url" value="${ex.connectionURL}"/>
    <property name="username"  value="${userName}"/>
    <property name="password" value="${password}"/>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.xxx.dao.ex"/>
    <property name="sqlSessionFactoryBeanName" value="exSqlSessionFactory"/>
</bean>
<bean id="sqlSessionFactoryEx" class="org.mybatis.spring.SqlSessionFactoryBean" name="exSqlSessionFactory">
    <property name="dataSource" ref="dataSourceEx"></property>
    <property name="mapperLocations" value="classpath*:mapperConfig/ex/*.xml"/>
    <property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<bean id="transactionManagerEx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSourceEx"/>
</bean>