Redisson连接Redis单机&集群&哨兵配置示例

本文介绍: 基于 spring–boot–starter–data–redis 原生配置集成Redi ss ion，连接不同模式（单机/主从/哨兵/集群）的Redi s 服务

Redi s son 简介

Redi ss ion是什么就不在这里多说了，可以自己百度或者查看最强分布式锁工具

Redisson 配置

看了很多博主对 Redi ss ion 配置基本都是单机模式，实际生产环境Redis部署有主从、哨兵、集群； Redi ss ion对不同Redis模式的配置区别挺大；同时，现在大部分项目都是Spr in gBo o t 项目，对Re dis的使用基本都是使用Spr in g 官网的starter；

所以这里基于Spr in gBo o t-1.5.22.RELEASE，解释一下结合 spring–b o o t–starter–data–redis 集成Re di ss ion的用法

pom 依赖

&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
    &lt;modelVersion&gt;4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.22.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.idto</groupId>
    <artifactId>redis-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>redis-demo</name>
    <description>redis-demo</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.15.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.12.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

RedissonClient创建

针对Redis不同的部署模式，对RedissonClient进行不同的初始化

package com.idto.config;

import org.apache.commons.lang3.StringUtils;
import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.ClusterServersConfig;
import org.redisson.config.Config;
import org.redisson.config.SentinelServersConfig;
import org.redisson.config.SingleServerConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.List;
import java.util.Objects;


@Configuration
public class RedissonConfig {

    Logger log = LoggerFactory.getLogger(RedissonConfig.class);


    # 直接使用starter注入的redis配置信息
    @Autowired
    private RedisProperties redisProperties;

    private int timeout = 3000;
    private int connectionPoolSize = 64;
    private int connectionMinimumIdleSize = 10;
    private int pingConnectionInterval = 60000;
    private static String ADDRESS_PREFIX = "redis://";

    /**
     * 单机模式
     */
    @Bean
    public RedissonClient initBean() {
        // 哨兵模式
        RedisProperties.Sentinel sentinel = redisProperties.getSentinel();
        if (Objects.nonNull(sentinel)) {
            log.info("redis is sentinel mode");
            return redissonSentinel();
        }
        // 集群模式
        RedisProperties.Cluster cluster = redisProperties.getCluster();
        if (Objects.nonNull(cluster)) {
            log.info("redis is cluster mode");
            return redissonCluster();
        }
        // 单机模式
        String host = redisProperties.getHost();
        if (StringUtils.isNotBlank(host)) {
            log.info("redis is single mode");
            return redissonSingle();
        }

        log.error("redisson config can not support this redis mode");
        return null;
    }

    /**
     * 单机模式
     */
    private RedissonClient redissonSingle() {
        String host = redisProperties.getHost();
        String password = redisProperties.getPassword();
        int port = redisProperties.getPort();
        // 设置超时时间
        if (redisProperties.getTimeout() > 0) {
            timeout = redisProperties.getTimeout();
        }
        // 声明一个配置类
        Config config = new Config();
        SingleServerConfig serverConfig = config.useSingleServer()
                .setAddress(ADDRESS_PREFIX + host + ":" + port)
                .setTimeout(timeout)
                .setPingConnectionInterval(pingConnectionInterval)
                .setConnectionPoolSize(this.connectionPoolSize)
                .setConnectionMinimumIdleSize(this.connectionMinimumIdleSize);
        // 判断密码
        if (!StringUtils.isEmpty(password)) {
            serverConfig.setPassword(password);
        }
        return Redisson.create(config);
    }


    /**
     * 哨兵模式
     */
    private RedissonClient redissonSentinel() {
        // mymaster
        String masterName = redisProperties.getSentinel().getMaster();
        // 127.0.0.1:26389,127.0.0.1:26379
        String nodes = redisProperties.getSentinel().getNodes();
        String password = redisProperties.getPassword();
        // 设置超时时间
        if (redisProperties.getTimeout() > 0) {
            timeout = redisProperties.getTimeout();
        }
        // 声明一个配置类
        Config config = new Config();
        SentinelServersConfig sentinelServersConfig = config.useSentinelServers();
        // 扫描间隔
        sentinelServersConfig.setScanInterval(2000);
        // 判断密码
        if (!StringUtils.isEmpty(password)) {
            sentinelServersConfig.setPassword(password);
        }
        sentinelServersConfig.setMasterName(masterName);
        String[] nodeArr = StringUtils.split(nodes, ",");
        for (int i = 0; i < nodeArr.length; i++) {
            nodeArr[i] = ADDRESS_PREFIX + nodeArr[i];
        }
        // 添加redis节点
        sentinelServersConfig.addSentinelAddress(nodeArr);
        return Redisson.create(config);
    }

    /**
     * 集群模式
     */
    private RedissonClient redissonCluster() {
        // 192.168.116.156:1901,192.168.116.156:1902
        List<String> nodes = redisProperties.getCluster().getNodes();
        String password = redisProperties.getPassword();
        // 设置超时时间
        if (redisProperties.getTimeout() > 0) {
            timeout = redisProperties.getTimeout();
        }
        // 声明一个配置类
        Config config = new Config();
        ClusterServersConfig clusterServersConfig = config.useClusterServers();
        // 扫描间隔
        clusterServersConfig.setScanInterval(2000);
        // 判断密码
        if (!StringUtils.isEmpty(password)) {
            clusterServersConfig.setPassword(password);
        }
        // 添加redis节点
        for (String node : nodes) {
            clusterServersConfig.addNodeAddress(ADDRESS_PREFIX + node);
        }
        return Redisson.create(config);
    }
}

Redis配置

spring:
  redis:

    # 单机/主从模式
#    host: 192.168.8.129
#    port: 7001

    # 哨兵模式
#    sentinel:
#      master: mymaster
#      nodes: 192.168.8.129:27001,192.168.8.129:27002,192.168.8.129:27003

    # 集群模式
    cluster:
      nodes: 192.168.8.129:8001,192.168.8.129:8002,192.168.8.129:8003,192.168.8.129:8004,192.168.8.129:8005,192.168.8.129:8006

    # redis服务数据库下标
    database: 2
    # redis服务密码
#    password: 111111
    pool:
      max-idle: 100
      min-idle: 1
      max-active: 10
      max-wait: 5000

Redisson简单 测试

package com.idto.controller;

import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;


@RestController
public class RedissionController {

    Logger log = LoggerFactory.getLogger(RedissionController.class);

    @Autowired
    private RedissonClient redissonClient;

    @GetMapping("/lock")
    public String lock() throws InterruptedException {
        String lockKey = "lock";
        RLock lock = redissonClient.getLock(lockKey);
        boolean lockResult = lock.tryLock();
        log.info("lock key {} lock result {}", lockKey, lockResult);
        TimeUnit.SECONDS.sleep(5);
        lock.unlock();
        log.info("lock key {} unlock ", lockKey);
        return System.currentTimeMillis() + "---" + lockResult;
    }


}