Java Redis Redisson設定教學詳解

        <!--redis-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
                 <exclusions>
                     <exclusion>
                         <groupId>io.lettuce</groupId>
                         <artifactId>lettuce-core</artifactId>
                     </exclusion>
                 </exclusions>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
        <!--     多臺相同應用(負載均),Session共用  -->
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.17.5</version>
        </dependency>

spring:
  redis:
    host: 106.12.174.220
    port: 6379
    password: 123456           #沒有密碼就保留空
    timeout: 5000
    jedis:
       pool:
         max-active: 1000 # 池在給定時間可以分配的最大連線數。使用負值表示無限制。
         max-idle: 50  #池中「空閒」連線的最大數量。使用負值表示空閒連線的數量不受限制
         min-idle: 10  # 目標是池中要維護的最小空閒連線數。此設定只有在它和逐出執行之間的時間均為正值時才有效。
         max-wait: -1  # 在池耗盡時引發異常之前，連線分配應阻止的最長時間。使用負值無限期阻塞。
    redisson:
      tokenName: Authorization    # 用於分散式鎖的唯一標識,一般使用token如果沒有找到,就找sessionId
  session:
    store-type: redis   #設定session儲存為預設redis的方式 ,可以解決分散式session不一致問題

import org.springframework.context.annotation.Configuration;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

@Configuration
//設定session的預設在redis中的存活時間
@EnableRedisHttpSession(maxInactiveIntervalInSeconds = 7200)   //Session過期時間,2小時,預設1800秒(半小時)   -1 永不過期
public class SessionConfig {}

import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;

//初始化Session設定
public class SessionInitializer extends AbstractHttpSessionApplicationInitializer {
    public SessionInitializer() {
        super(SessionConfig.class);
    }
}

import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.redisson.config.SingleServerConfig;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RedissonConfig {

    @Value("${spring.redis.host}")
    private String host;
    @Value("${spring.redis.port}")
    private String port;
    @Value("${spring.redis.password}")
    private String password;

    @Bean
    public RedissonClient getRedisson() {
        Config config = new Config();
        SingleServerConfig singleServerConfig = config.useSingleServer();
        singleServerConfig.setAddress("redis://" + host + ":" + port).setPassword(password);
        return Redisson.create(config);
    }

}

        Config config = new Config();
        config.useSingleServer().setAddress("redis://" + host + ":" + port).setPassword(password);

Config config = new Config();
config.useSentinelServers().addSentinelAddress(
        "redis://172.29.3.245:26378","redis://172.29.3.245:26379", "redis://172.29.3.245:26380")
        .setMasterName("mymaster")
        .setPassword("a123456");

        Config config = new Config();
        config.useMasterSlaveServers()
                //可以用"rediss://"來啟用SSL連線
                .setMasterAddress("redis://192.168.81.145:6379")//主節點
                //從節點
                .addSlaveAddress("redis://192.168.81.146:6379")
                .addSlaveAddress("redis://192.168.81.148:6379")
                .setPassword("123456");

Config config = new Config();
config.useClusterServers()
    .setScanInterval(2000) // 叢集狀態掃描間隔時間，單位是毫秒
    .addNodeAddress("redis://127.0.0.1:7000")
    .addNodeAddress("redis://127.0.0.1:7001")
    .addNodeAddress("redis://127.0.0.1:7002")
    .setPassword("123456");

Config config1 = new Config();
config1.useSingleServer().setAddress("redis://172.29.1.180:5378")
        .setPassword("123456");
RedissonClient redissonClient1 = Redisson.create(config1);

Config config2 = new Config();
config2.useSingleServer().setAddress("redis://172.29.1.180:5379")
        .setPassword("123456");
RedissonClient redissonClient2 = Redisson.create(config2);

Config config3 = new Config();
config3.useSingleServer().setAddress("redis://172.29.1.180:5380")
        .setPassword("123456");
RedissonClient redissonClient3 = Redisson.create(config3);

String resourceName = "REDLOCK";
RLock lock1 = redissonClient1.getLock(resourceName);
RLock lock2 = redissonClient2.getLock(resourceName);
RLock lock3 = redissonClient3.getLock(resourceName);
// 同時給3個redis上鎖
RedissonRedLock redLock = new RedissonRedLock(lock1, lock2, lock3);
boolean isLock;
try {
    isLock = redLock.tryLock(500, 30000, TimeUnit.MILLISECONDS);
    System.out.println("isLock = "+isLock);
    if (isLock) {
        //TODO if get lock success, do something;
        Thread.sleep(30000);
    }
} catch (Exception e) {
} finally {
    // 無論如何, 最後都要解鎖
    System.out.println("");
    redLock.unlock();
}