Microservice technology - distributed global ID in high concurrency

Use UUI Generate order number （ Universal ）

Database table structure

####UUID()  Generate order number 
insert into orderNumber value('111')
DROP TABLE IF EXISTS `ordernumber`;
CREATE TABLE `ordernumber` (
  `order-number` varchar(255) primary key,
  KEY `order-number` (`order-number`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

select count(*) from ordernumber
### Generate order number based on database self increment 

Database auto increment mode

CREATE TABLE `ordernumber` (
  `order-number` int auto_increment primary key,
  KEY `order-number` (`order-number`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

insert into orderNumber value(null);

Redis Realize self increment mode

Maven rely on

<parent>
		<groupId>org