标签:lan protect method 切换 source frame cdata tsig code
http://www.caixin.com/2020-07-01/101574145.html
import java.util.Objects;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
/**
* 多数据源处理
*
*/
@Aspect
@Order(1)
@Component
public class DataSourceAspect
{
protected Logger logger = LoggerFactory.getLogger(getClass());
@Pointcut("@annotation(com.xxx.framework.aspectj.lang.annotation.DataSource)"
+ "|| @within(com.xxx.framework.aspectj.lang.annotation.DataSource)")
public void dsPointCut()
{
}
//环绕切面 执行前后
@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)
{
MethodSignature signature = (MethodSignature) point.getSignature();
DataSource dataSource = AnnotationUtils.findAnnotation(signature.getMethod(), DataSource.class);
if (Objects.nonNull(dataSource))
{
return dataSource;
}
return AnnotationUtils.findAnnotation(signature.getDeclaringType(), DataSource.class);
}
}
标签:lan protect method 切换 source frame cdata tsig code
原文地址:https://www.cnblogs.com/ukzq/p/13284040.html