package com.study.demo1; import lombok.extern.slf4j.Slf4j; @Slf4j public class getRandNumber { public static void main(String[] args) { int min = 10000000; int max = m......
本机MySQL版本:8.0 select @@transaction_isolation; 网上很多都是@@tx_isolation; 跟着操作后MySQL报Unknown system variable 'tx_isolation',查了资料才发现最新版MySQL已经改为transac...
1. POST不带id POST http://localhost:9200/customer/_doc Content-type: application/json {"name":"Tom Cat"} 结果:不管请求多少次,result始终是created,seq_no也是一直往上涨 2. POST带...
Java: import java.util.Scanner; public class CheckHuiWen { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String string = scanner.nex......
添加一个配置文件即可: package com.myproject.config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org....
写@Repository时,会用到@Query来自定义SQL @Repository public interface UsersRepository extends JpaRepository { List findByMobile(String mobile); @Query(value = "se......
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