spring+SpringMVC+MyBatis之配置多数据源

package com.test.datasource; import java.lang.reflect.Method; import org.springframework.aop.AfterReturningAdvice; import org.springframework.aop.MethodBeforeAdvice; import com.test.annotation.TargetDataSource; public class DataSourceExchange implements MethodBeforeAdvice, AfterReturningAdvice { @Override public void afterReturning(Object returnValue, Method method, Object[] args, Object target) throws Throwable { DataSourceHolder.clearDataSource(); } @Override public void before(Method method, Object[] args, Object target) throws Throwable { // 这里TargetDataSource是自定义的注解 if (method.isAnnotationPresent(TargetDataSource.class)) { TargetDataSource datasource = method.getAnnotation(TargetDataSource.class); DataSourceHolder.setDataSource(datasource.name()); } else { if(target.getClass().isAnnotationPresent(TargetDataSource.class)) { TargetDataSource datasource = target.getClass().getAnnotation(TargetDataSource.class); DataSourceHolder.setDataSource(datasource.name()); } } } }