package com.hmdp.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 RedissonConfig {
    @Bean
    public RedissonClient redissonClient() {
        // 配置
        Config config = new Config();
        // 地址 & 密碼
        config.useSingleServer().setAddress("redis://ip:端口").setPassword("pwd");
        // 創(chuàng)建 RedissonClient 對(duì)象
        return Redisson.create(config);
    }
    @Bean
    public RedissonClient redissonClient2() {
        // 配置
        Config config = new Config();
        // 地址 & 密碼
        config.useSingleServer().setAddress("redis://ip:端口").setPassword("pwd");
        // 創(chuàng)建 RedissonClient 對(duì)象
        return Redisson.create(config);
    }
    @Bean
    public RedissonClient redissonClient3() {
        // 配置
        Config config = new Config();
        // 地址 & 密碼
        config.useSingleServer().setAddress("redis://ip:端口").setPassword("pwd");
        // 創(chuàng)建 RedissonClient 對(duì)象
        return Redisson.create(config);
    }
}

package com.hmdp;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;
@Slf4j
@SpringBootTest
public class TestRedisson {
    @Resource
    private RedissonClient redissonClient;
    @Resource
    private RedissonClient redissonClient2;
    @Resource
    private RedissonClient redissonClient3;
    private RLock lock;
    @BeforeEach
    void setUp() {
        RLock lock1 = redissonClient.getLock("order");
        RLock lock2 = redissonClient2.getLock("order");
        RLock lock3 = redissonClient3.getLock("order");
        // 創(chuàng)建連鎖 multiLock
        lock = redissonClient.getMultiLock(lock1, lock2, lock3);
    }
    @Test
    void method1() throws InterruptedException {
        // 嘗試獲取鎖
        boolean isLock = lock.tryLock(1L, TimeUnit.SECONDS);
        if (!isLock) {
            log.error("獲取鎖失敗 .... 1");
            return;
        }
        try {
            log.info("獲取鎖成功 .... 1");
            method2();
            log.info("開(kāi)始執(zhí)行業(yè)務(wù) .... 1");
        } finally {
            log.warn("準(zhǔn)備釋放鎖 .... 1");
            lock.unlock();
        }
    }
    void method2() {
        // 嘗試獲取鎖
        boolean isLock = lock.tryLock();
        if (!isLock) {
            log.error("獲取鎖失敗 .... 2");
            return;
        }
        try {
            log.info("獲取鎖成功 .... 2");
            log.info("開(kāi)始執(zhí)行業(yè)務(wù) .... 2");
        } finally {
            log.warn("準(zhǔn)備釋放鎖 .... 2");
            lock.unlock();
        }
    }
}