TavenYin

import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;

public class WeightRandom<T> {
    ThreadLocal<Random> threadLocalRandom = ThreadLocal.withInitial(Random::new);

    private final List<T> items = new ArrayList<>();
    private double[] weights;

    public WeightRandom(List<ItemWithWeight<T>> itemsWithWeight) {

TavenYin

[Unit]
Description=IRON consumer service
# 网络就绪后执行
After=network.target

[Service]
#
Type=simple
# 当服务进程 正常退出、异常退出、被杀死、超时的时候， 是否重新启动该服务，可选的值包括 always（总是重启）、on-success、on-failure、on-abnormal、on-abort、on-watchdog
Restart=always

TavenYin

git reset --hard 6c98c09e4ccf3e1808a0c0e40de637b63ae1ebbb // 回退到某一个提交
git push -f

TavenYin

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import redis.clients.jedis.Jedis;

import java.util.Collections;

@Service
public class RedisLock {