Redisson-分布式锁-闭锁

Redisson-分布式锁-闭锁

引入必要依赖

		<dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-data-redisartifactId>
            
            <exclusions>
                <exclusion>
                    <groupId>io.lettucegroupId>
                    <artifactId>lettuce-coreartifactId>
                exclusion>
            exclusions>
        dependency>

        
        <dependency>
            <groupId>redis.clientsgroupId>
            <artifactId>jedisartifactId>
            <version>3.3.0version>
        dependency>

        
        <dependency>
            <groupId>org.redissongroupId>
            <artifactId>redissonartifactId>
            <version>3.13.6version>
        dependency>

配置redisson的bean-实例

package com.ligaixian.config;

import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class MyRedissonConfig {
     

    /**
     * redissonClient 单节点配置
     * @return
     */
    @Bean
    public RedissonClient redissonClient(){
     
        Config config = new Config(); 
        config.useSingleServer().setAddress("redis://127.0.0.1:6379");

        RedissonClient redissonClient = Redisson.create(config);
        return redissonClient;
    }

    /**
     * redissonClient 集群配置
     * @return
     */
    @Bean
    public RedissonClient redissonClient(){
     
        Config config = new Config();
        config.useClusterServers()
                .setScanInterval(2000) // 集群状态扫描间隔时间，单位是毫秒
                //可以用"rediss://"来启用SSL连接
                .addNodeAddress("redis://127.0.0.1:7000", "redis://127.0.0.1:7001")
                .addNodeAddress("redis://127.0.0.1:7002");

        RedissonClient redissonClient = Redisson.create(config);
        return redissonClient;
    }
}

redisson实现分布式锁-闭锁

/**
     * 实现redisson 闭锁
     *
     * @return
     */
    @GetMapping("/lockDoor")
    public String loclDoor() {
     
        RCountDownLatch door = redissonClient.getCountDownLatch("door");
        door.trySetCount(5);
        try {
     
            door.await(); //等待闭锁都完成
        } catch (InterruptedException e) {
     
            e.printStackTrace();
        }
        return "关门了";
    }

    @GetMapping("/gogogo/{id}")
    public String gogogo(@PathVariable("id") Integer id) {
     
        RCountDownLatch door = redissonClient.getCountDownLatch("door");
        door.countDown(); //计数器减一

        return id + "班的人都走了";
    }