| 提交 | 用户 | 时间 | ||
| fd2207 | 1 | package com.jcdm.framework.aspectj; |
| 懒 | 2 | |
| 3 | import java.util.Objects; | |
| 4 | import org.aspectj.lang.ProceedingJoinPoint; | |
| 5 | import org.aspectj.lang.annotation.Around; | |
| 6 | import org.aspectj.lang.annotation.Aspect; | |
| 7 | import org.aspectj.lang.annotation.Pointcut; | |
| 8 | import org.aspectj.lang.reflect.MethodSignature; | |
| 9 | import org.slf4j.Logger; | |
| 10 | import org.slf4j.LoggerFactory; | |
| 11 | import org.springframework.core.annotation.AnnotationUtils; | |
| 12 | import org.springframework.core.annotation.Order; | |
| 13 | import org.springframework.stereotype.Component; | |
| 14 | import com.jcdm.common.annotation.DataSource; | |
| 15 | import com.jcdm.common.utils.StringUtils; | |
| 16 | import com.jcdm.framework.datasource.DynamicDataSourceContextHolder; | |
| 17 | ||
| 18 | /** | |
| 19 | * 多数据源处理 | |
| 20 | * | |
| 21 | * @author jc | |
| 22 | */ | |
| 23 | @Aspect | |
| 24 | @Order(1) | |
| 25 | @Component | |
| 26 | public class DataSourceAspect | |
| 27 | { | |
| 28 | protected Logger logger = LoggerFactory.getLogger(getClass()); | |
| 29 | ||
| 30 | @Pointcut("@annotation(com.jcdm.common.annotation.DataSource)" | |
| 31 | + "|| @within(com.jcdm.common.annotation.DataSource)") | |
| 32 | public void dsPointCut() | |
| 33 | { | |
| 34 | ||
| 35 | } | |
| 36 | ||
| 37 | @Around("dsPointCut()") | |
| 38 | public Object around(ProceedingJoinPoint point) throws Throwable | |
| 39 | { | |
| 40 | DataSource dataSource = getDataSource(point); | |
| 41 | ||
| 42 | if (StringUtils.isNotNull(dataSource)) | |
| 43 | { | |
| 44 | DynamicDataSourceContextHolder.setDataSourceType(dataSource.value().name()); | |
| 45 | } | |
| 46 | ||
| 47 | try | |
| 48 | { | |
| 49 | return point.proceed(); | |
| 50 | } | |
| 51 | finally | |
| 52 | { | |
| 53 | // 销毁数据源 在执行方法之后 | |
| 54 | DynamicDataSourceContextHolder.clearDataSourceType(); | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | /** | |
| 59 | * 获取需要切换的数据源 | |
| 60 | */ | |
| 61 | public DataSource getDataSource(ProceedingJoinPoint point) | |
| 62 | { | |
| 63 | MethodSignature signature = (MethodSignature) point.getSignature(); | |
| 64 | DataSource dataSource = AnnotationUtils.findAnnotation(signature.getMethod(), DataSource.class); | |
| 65 | if (Objects.nonNull(dataSource)) | |
| 66 | { | |
| 67 | return dataSource; | |
| 68 | } | |
| 69 | ||
| 70 | return AnnotationUtils.findAnnotation(signature.getDeclaringType(), DataSource.class); | |
| 71 | } | |
| 72 | } | |
