Redis集群——SpringBoot連接Redis集群(帶密碼)

第一步，新建項目maven項目，添加依賴

 

（1）本文所采用的SpringBoot的版本如下

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.2.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

（2）加入Redis相關依賴

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
</dependency>

 

第二步，application.yml加入redis相關配置

spring:
  application:
    name: redis-cluster
  redis:
    cluster:
      nodes: 192.168.0.102:6379,192.168.0.103:6379,192.168.0.105:6379
      max-redirects: 6
redis:
  timeout: 10000 #客戶端超時時間單位是毫秒 默認是2000
  maxIdle: 300 #最大空閑數
  maxTotal: 1000 #控制一個pool可分配多少個jedis實例,用來替換上面的redis.maxActive,如果是jedis 2.4以后用該屬性
  maxWaitMillis: 1000 #最大建立連接等待時間。如果超過此時間將接到異常。設為-1表示無限制。
  minEvictableIdleTimeMillis: 300000 #連接的最小空閑時間 默認1800000毫秒(30分鍾)
  numTestsPerEvictionRun: 1024 #每次釋放連接的最大數目,默認3
  timeBetweenEvictionRunsMillis: 30000 #逐出掃描的時間間隔(毫秒) 如果為負數,則不運行逐出線程, 默認-1
  testOnBorrow: true #是否在從池中取出連接前進行檢驗,如果檢驗失敗,則從池中去除連接並嘗試取出另一個
  testWhileIdle: true #在空閑時檢查有效性, 默認false
  password: 123456 #密碼
server:
  port: 8080

 

第三步，編寫配置類

package com.qxj.redis;

import java.util.HashSet;
import java.util.Set;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisClusterConfiguration;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisPassword;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

import redis.clients.jedis.JedisPoolConfig;

@Configuration
public class RedisClusterConfig {

    @Value("${spring.redis.cluster.nodes}")
    private String clusterNodes;
    @Value("${spring.redis.cluster.max-redirects}")
    private int maxRedirects;
    @Value("${redis.password}")
    private String password;
    @Value("${redis.timeout}")
    private int timeout;
    @Value("${redis.maxIdle}")
    private int maxIdle;
    @Value("${redis.maxTotal}")
    private int maxTotal;
    @Value("${redis.maxWaitMillis}")
    private int maxWaitMillis;
    @Value("${redis.minEvictableIdleTimeMillis}")
    private int minEvictableIdleTimeMillis;
    @Value("${redis.numTestsPerEvictionRun}")
    private int numTestsPerEvictionRun;
    @Value("${redis.timeBetweenEvictionRunsMillis}")
    private int timeBetweenEvictionRunsMillis;
    @Value("${redis.testOnBorrow}")
    private boolean testOnBorrow;
    @Value("${redis.testWhileIdle}")
    private boolean testWhileIdle;

    /**
     * Redis連接池的配置
     * 
     * @return JedisPoolConfig
     */
    @Bean
    public JedisPoolConfig getJedisPoolConfig() {
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        // 最大空閑數
        jedisPoolConfig.setMaxIdle(maxIdle);
        // 連接池的最大數據庫連接數
        jedisPoolConfig.setMaxTotal(maxTotal);
        // 最大建立連接等待時間
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        // 逐出連接的最小空閑時間 默認1800000毫秒(30分鍾)
        jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        // 每次逐出檢查時 逐出的最大數目 如果為負數就是 : 1/abs(n), 默認3
        jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun);
        // 逐出掃描的時間間隔(毫秒) 如果為負數,則不運行逐出線程, 默認-1
        jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        // 是否在從池中取出連接前進行檢驗,如果檢驗失敗,則從池中去除連接並嘗試取出另一個
        jedisPoolConfig.setTestOnBorrow(testOnBorrow);
        // 在空閑時檢查有效性, 默認false
        jedisPoolConfig.setTestWhileIdle(testWhileIdle);
        return jedisPoolConfig;
    }

    /**
     * Redis集群的配置
     * 
     * @return RedisClusterConfiguration
     */
    @Bean
    public RedisClusterConfiguration redisClusterConfiguration() {
        RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
        // Set<RedisNode> clusterNodes
        String[] serverArray = clusterNodes.split(",");
        Set<RedisNode> nodes = new HashSet<RedisNode>();
        for (String ipPort : serverArray) {
            String[] ipAndPort = ipPort.split(":");
            nodes.add(new RedisNode(ipAndPort[0].trim(), Integer.valueOf(ipAndPort[1])));
        }
        redisClusterConfiguration.setClusterNodes(nodes);
        redisClusterConfiguration.setMaxRedirects(maxRedirects);
        redisClusterConfiguration.setPassword(RedisPassword.of(password));
        return redisClusterConfiguration;
    }

    /**
     * redis連接工廠類
     * 
     * @return JedisConnectionFactory
     */
    @Bean
    public JedisConnectionFactory jedisConnectionFactory() {
        // 集群模式
        JedisConnectionFactory factory = new JedisConnectionFactory(redisClusterConfiguration(), getJedisPoolConfig());
        return factory;
    }

    /**
     * 實例化 RedisTemplate 對象
     * 
     * @return RedisTemplate<String, Object>
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        // Template初始化
        initDomainRedisTemplate(redisTemplate);
        return redisTemplate;
    }

    /**
     * 設置數據存入 redis 的序列化方式 使用默認的序列化會導致key亂碼
     */
    private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
        // 開啟redis數據庫事務的支持
        redisTemplate.setEnableTransactionSupport(true);
        redisTemplate.setConnectionFactory(jedisConnectionFactory());

        // 如果不配置Serializer，那么存儲的時候缺省使用String，如果用User類型存儲，那么會提示錯誤User can't cast to
        // String！
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        redisTemplate.setHashKeySerializer(stringRedisSerializer);

        // jackson序列化對象設置
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(
                Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);

        // value序列化方式采用jackson
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);

        redisTemplate.afterPropertiesSet();
    }
}

 

第四步，編寫Controller測試類

package com.qxj.application;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

    @Autowired
    private RedisTemplate<String, Object> template;

    @RequestMapping("/test")
    public String test() {
        template.opsForValue().set("demo", "hello world! 你好，世界");
        String str = (String) template.opsForValue().get("demo");
        return str;
    }

}

 

參考文獻：https://blog.csdn.net/WYA1993/article/details/88046628