0.在springboot的AOP实践过程种,发现 @Pointcut 切点并不能获取接口上的注解
1.在多次尝试后,可以在实现了,多数据源绑定到mapper interfac层.
2.以下代码ruoyi开源框架的代码做的修改,我将其改造为mybatis-plus版,并且支持多数据源.
/**
* 多数据源处理
*
* @author ruoyi
*/
@Aspect
@Order(1)
@Component
public class DataSourceAspect
{
protected Logger logger = LoggerFactory.getLogger(getClass());
@Pointcut("@annotation(com.ruoyi.common.annotation.DataSource)"
+ "|| @within(com.ruoyi.common.annotation.DataSource)"
+ "|| target(com.baomidou.mybatisplus.core.mapper.BaseMapper)")
public void dsPointCut()
{
}
@Around("dsPointCut()")
public Object around(ProceedingJoinPoint point) throws Throwable
{
DataSource dataSource = getDataSource(point);
if (StringUtils.isNotNull(dataSource))
{
DynamicDataSourceContextHolder.setDataSourceType(dataSource.value().name());
}
try
{
return point.proceed();
}
finally
{
// 销毁数据源 在执行方法之后
DynamicDataSourceContextHolder.clearDataSourceType();
}
}
/**
* 获取需要切换的数据源
*/
public DataSource getDataSource(ProceedingJoinPoint point) throws NoSuchMethodException {
MethodSignature signature = (MethodSignature) point.getSignature();
DataSource dataSource = AnnotationUtils.findAnnotation(signature.getMethod(), DataSource.class);
if (Objects.nonNull(dataSource))
{
return dataSource;
}
dataSource = AnnotationUtils.findAnnotation(signature.getDeclaringType(), DataSource.class);
if (Objects.nonNull(dataSource))
{
return dataSource;
}
Class<?> targetClass=point.getTarget().getClass();
Object[] targetClassInterfaceList = targetClass.getInterfaces();
Object targetClassInterface = targetClassInterfaceList[0];
dataSource = AnnotationUtils.findAnnotation(((Class) targetClassInterface), DataSource.class);
return dataSource;
}
}