背景:测试的时候,没有数据,自己一个一个造,很是麻烦,再搞个java接口,似乎也不太方便,这里就可以尝试一下下面这种做法,利用mysql的存储过程来造数据。
示例代码:
delimiter $$
drop procedure if exists generate;
CREATE DEFINER=`root`@`localhost` PROCEDURE `generate`( IN num INT )
BEGIN
DECLARE chars VARCHAR ( 100 ) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
DECLARE name VARCHAR ( 10 ) DEFAULT '';
DECLARE hobby VARCHAR ( 25 ) DEFAULT '';
DECLARE id INT UNSIGNED;
DECLARE len INT;
SET id = 1;
DELETE FROM person;
WHILE id <= num DO
SET len = FLOOR( 1 + RAND()* 10 );
SET fname = '';
WHILE len > 0 DO
SET name = CONCAT(name,substring( chars, FLOOR( 1 + RAND()* 62 ), 1 ));
SET len = len - 1;
END WHILE;
SET len = FLOOR( 1+RAND ()* 25 );
SET hobby = '';
WHILE len > 0 DO
SET hobby = CONCAT(hobby,SUBSTR( chars, FLOOR( 1 + RAND()* 62 ), 1 ));
SET len = len - 1;
END WHILE;
INSERT INTO person VALUES (id,name,hobby,FLOOR( RAND()* 100 ),FLOOR( RAND()* 2 ));
SET id = id + 1;
END WHILE;
END $$
-- 停掉事务
set autocommit = 0;
-- 调用存储过程
call generate(1000000); -- 重启事务
set autocommit = 1;