@Override
    public int hashCode() {
        return Objects.hash(id, name, type, serverList, props, level, pluginName, discoveryHandler, discoveryRel, namespaceId);
    }
Set discovery rel.
@param discoveryRel discovery rel
shenyu-admin/src/main/java/org/apache/shenyu/admin/model/dto/DiscoveryDTO.java