redis锁

暂时没时间整细节，给个粗略的记录一下

package com.util.qunar;

import com.service.qunar.FQunarSearchService;
import com.service.zl.ValidationCabinAndPrice_QNR;
import org.apache.log4j.Logger;
import org.redisson.Redisson;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class RedissonTemplate {

    private static volatile RedissonClient redissonClient;

    private static final String LOCK_TITLE = "QNRLock_";

    /**
     * 加锁
     * @param lockName
     * @param waitTime
     * @param timeOutSecond
     * @return
     */
    public static boolean acquireSecond(String lockName, Integer waitTime, Integer timeOutSecond){
        try {
            String key = LOCK_TITLE + lockName;
            RLock mylock = redisLock().getLock(key);
            //lock提供带timeout参数，timeout结束强制解锁，防止死锁
            //先尝试在超时时间内获取锁，如果没有获取到，此时如果等待时间还有剩余进入循环不断取尝试获取锁 直到时间结束退出  循环中是订阅，时间结束取消订阅
            return mylock.tryLock(waitTime, timeOutSecond, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            System.out.println(e);
        }
        return false;
    }

    /**
     * 连接redis
     * @return
     */
    private static RedissonClient redisLock(){
        if(redissonClient == null){
            synchronized (FQunarSearchService.class){
                if(redissonClient == null){
                    Config config = new Config();
                    config.useSingleServer().setAddress("redis://127.0.0.1:6379")
                            .setPassword("123")
                            .setDatabase(17);
                    redissonClient = Redisson.create(config);
                }
            }
        }
        return redissonClient;
    }

    /**
     * 解锁
     * @param lockName
     */
    public static void release(String lockName){
        String key = LOCK_TITLE + lockName;
        RLock mylock = redissonClient.getLock(key);
        mylock.unlock();
    }
}