如题

本来想这样依赖@Configuration中的@bean

@Configuration
public class DataSourceConfig {
    Map<String, String> map = new HashMap<>();

    @Bean
    public DruidDataSource dataSource() throws Exception {
    	//从读取数据库的配置
    }
....

但是报错了
No bean named ‘dataSource’ available
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference

然后就改了一下

	//加上了这一行
	<bean class="com.config.DataSourceConfig" init-method="dataSource"></bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--数据源dataSource-->
        <property name="dataSource" ref="dataSource"/>

    </bean>