x7/x7-repo DETAILED README
   1. @SpringBootApplication(exclude = IdGeneratorAutoConfiguration.class)
   2. 参照x7-id-generator工程, 新建工程,实现自定义的IdGeneratorService, 代码如下:
        public interface MyIdGeneratorService extends IdGeneratorProxy       
   1. A method, coded with io.xream/acku or seata, maybe we can not use:
        @Lock  or 
        { DistributionLock.by(key).lock(task) }