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  • try-catch+thows异常范围说明

    方式一:

            CatalogPO deleteTarget = null;
            /** 查询是否存在 **/
            deleteTarget = catalogMapper.findByCatalogId(catalogId);
            if (Objects.isNull(deleteTarget)) {
                log.warn("the delete catalog is not existed");
                throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "要删除的服务目录不存在");
            }
            /** 判断是不是是预置服务目录 **/
            if (deleteTarget.getPreseted() == 1) {
                log.warn("the preseted catalog is not allow delete");
                throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "预置服务目录不允许删除");
            }
            /** 判断服务目录是否有绑定的服务 **/
            Metadata metadata = new Metadata();
            metadata.setFilter(new TreeMap<>());
            metadata.getFilter().put("catalogId", catalogId.toString());
            metadata.setPaginationParam(new PaginationParam(1,1000,1000));
            List<WhBuService> services = catalogMapper.listBindedServices(metadata);
            if (CollectionUtils.isNotEmpty(services)) {
                log.warn("the catalog has bind service is not allow delete");
                throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "服务目录绑定有服务不允许删除");
            }
            try {
                List<Long> ids = findCatalogIdAndChildIds(catalogId);
                catalogMapper.deleteCatalogByIds(ids);
                return mapper.map(deleteTarget,CatalogDO.class);
            } catch (Exception e) {
                log.error("delete catalog error,{}", e);
                throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "删除服务目录方法失败");
            }

     红色地方抛出异常,则紫色的地方不会继续执行

    方式二:

            CatalogPO deleteTarget = null;
            try {
                /** 查询是否存在 **/
                deleteTarget = catalogMapper.findByCatalogId(catalogId);
                if (Objects.isNull(deleteTarget)) {
                    log.warn("the delete catalog is not existed");
                    throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "要删除的服务目录不存在");
                }
                /** 判断是不是是预置服务目录 **/
                if (deleteTarget.getPreseted() == 1) {
                    log.warn("the preseted catalog is not allow delete");
                    throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "预置服务目录不允许删除");
                }
                /** 判断服务目录是否有绑定的服务 **/
                Metadata metadata = new Metadata();
                metadata.setFilter(new TreeMap<>());
                metadata.getFilter().put("catalogId", catalogId.toString());
                metadata.setPaginationParam(new PaginationParam(1,1000,1000));
                List<WhBuService> services = catalogMapper.listBindedServices(metadata);
                if (CollectionUtils.isNotEmpty(services)) {
                    log.warn("the catalog has bind service is not allow delete");
                    throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "服务目录绑定有服务不允许删除");
                }
            } catch (Exception e) {
                log.error("delete catalog error,{}", e);
            }
            try {
                List<Long> ids = findCatalogIdAndChildIds(catalogId);
                catalogMapper.deleteCatalogByIds(ids);
                return mapper.map(deleteTarget,CatalogDO.class);
            } catch (Exception e) {
                log.error("delete catalog error,{}", e);
                throw new WhBuCatalogException(HttpStatus.INTERNAL_SERVER_ERROR, ErrorCode.SUFIX_DB_DELETE, "删除服务目录方法失败");
            }

    红色地方抛出异常,则紫色的地方还会继续执行

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  • 原文地址:https://www.cnblogs.com/boshen-hzb/p/9057159.html
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