type = IdType.ASSIGN_ID指定了主键的生成策略为雪花算法(Snowflake)。雪花算法是一种分布式系统中生成全局唯一ID的算法,它生成的是一个64位的长整型数字,具有趋势递增、时间有序等特点,非常适合在分布式系统中使用。 使用场景: 分布式系统:在分布式系统中,由于多个节点可能需要同时生成ID,因此传统的数据库自增ID无法...
id-type:auto# 鼠标放在id-type上面显示的解释如下图。 鼠标放在id-type上面出来的解释:  注解:@TableId(value = "id", type = IdType.ASSIGN_ID) 测试点: 在bootstrap.yml中配置:id-type: auto, 注解为...
The method builder() is undefined for the type User 回答2 在测试时,无法注入mapper接口,提示Could not autowire. No beans of 'SysFwListMapper' type found. 回答3打开慕课网App查看更多内容
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id-type:auto# 鼠标放在id-type上面显示的解释如下图。 鼠标放在id-type上面出来的解释:  注解:@TableId(value = "id", type = IdType.ASSIGN_ID) ...
用的@TableId(type = IdType.ASSIGN_ID))insert()单条不会报错 批量insert或者 saveBatch 的时候就报主键重复错误Duplicate entry '1418570282181787649' for key 't_facility.PRIMARY'类似这种 老师看到请解答一下 怎么解决,需要哪边配置一下 慕用7341170 2021-07-23 源自:MyBatis-Plus入门 6-2 ...
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