7.spring-boot2 ------redis cluster

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1.修改pom文件,添加redis依赖:

<!--redis 使用-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-redis</artifactId>
    <version>2.0.9.RELEASE</version>
</dependency>
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>2.9.0</version>
</dependency>
<!--json处理-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.49</version>
</dependency>

2.spring配置文件修改[application.yml]:

redis:
 cluster:
    nodes: 192.168.20.68:7001,192.168.20.68:7002,192.168.20.68:7003,192.168.20.68:7004,192.168.20.68:7005
 jedis:
  pool:
    max-active: 8
    max-idle: 8
    max-wait: -1
    min-idle: 0
 timeout: 0

3.创建redis配置类:

@ConditionalOnClass({JedisCluster.class})
@Configuration
public class RedisConfig4Cluster {
    @Value("${spring.redis.cluster.nodes}")
    private String clusterNodes;
    @Value("${spring.redis.timeout}")
    private int timeout;
    @Value("${spring.redis.jedis.pool.max-idle}")
    private int maxIdle;
    @Value("${spring.redis.jedis.pool.max-wait}")
    private long maxWaitMillis;

    @Bean
    public JedisCluster getJedisCluster() {
        String[] cNodes = clusterNodes.split(",");
        Set<HostAndPort> nodes =new HashSet<>();
        //分割出集群节点
        for(String node : cNodes) {
            String[] hp = node.split(":");
            nodes.add(new HostAndPort(hp[0],Integer.parseInt(hp[1])));
        }
        JedisPoolConfig jedisPoolConfig =new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        //创建集群对象
        return new JedisCluster(nodes,timeout,jedisPoolConfig);
    }

    /**
     * 设置数据存入redis 的序列化方式
     *</br>redisTemplate序列化默认使用的jdkSerializeable,存储二进制字节码,导致key会出现乱码，所以自定义
     *序列化类
     *
     * @paramredisConnectionFactory
     */
    @Bean
    public RedisTemplate<Object,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory)throws UnknownHostException {
        RedisTemplate<Object,Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer =new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper =new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

4.测试用例:

@Autowired
private JedisCluster jedisCluster;

@Test
public void testRedisCluster(){
    final String NAME_KEY="name_key";
    jedisCluster.set(NAME_KEY,"berg");
    System.out.println("==========set cache============");
    String userName=jedisCluster.get(NAME_KEY);
    System.out.println("=========get cache=============userName:"+userName);
}