崛起於Springboot2.X + 哨兵模式Redi(16)

《SpringBoot2.X心法總綱》java

介紹:springboot的哨兵模式若是隻是使用redis的狀況下,在單機redis的前提下,直接在配置文件添加幾行配置就能夠了,由於springboot有自動配置加載的功能就能夠了node

一、單機的redis中的配置文件redis註釋redis

#spring.redis.database=0
#spring.redis.host=localhost
#spring.redis.port=6379
#spring.redis.password=
#spring.redis.timeout=10000ms

註釋掉以後,改成:spring

#redis哨兵模式
spring.redis.sentinel.master=mymaster
spring.redis.sentinel.nodes=192.168.1.20:26379,192.168.1.20:36379,192.168.1.20:46379

添加配置類springboot

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisSentinelConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;

@Configuration
public class RedisSentinelConfig extends CachingConfigurerSupport {

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

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.timeout}")
    private int timeout;

    @Value("${spring.redis.database}")
    private int database;

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

    @Value("${spring.redis.sentinel.nodes}")
    private String redisNodes;

    @Value("${spring.redis.sentinel.master}")
    private String master;

    //redis哨兵配置
    @Bean
    public RedisSentinelConfiguration redisSentinelConfiguration(){
        RedisSentinelConfiguration configuration = new RedisSentinelConfiguration();
        String[] host = redisNodes.split(",");
        for(String redisHost : host){
            String[] item = redisHost.split(":");
            String ip = item[0];
            String port = item[1];
            configuration.addSentinel(new RedisNode(ip, Integer.parseInt(port)));
        }
        configuration.setMaster(master);
        return configuration;
    }
    //鏈接redis的工廠類
    @Autowired
    private JedisPoolConfig jedisPoolConfig;

    @Autowired
    private RedisSentinelConfiguration redisSentinelConfiguration;

    @Bean
    public JedisConnectionFactory jedisConnectionFactory() {
        JedisConnectionFactory jedisConnectionFactory =
                new JedisConnectionFactory(redisSentinelConfiguration, jedisPoolConfig);
        return jedisConnectionFactory;
    }

    //配置RedisTemplate,設置添加序列化器,key 使用string序列化器,value 使用Json序列化器,還有一種簡答的設置方式,改變defaultSerializer對象的實現。
    @Autowired
    private JedisConnectionFactory jedisConnectionFactory;

    @Bean
    public RedisTemplate<Object, Object> redisTemplate() {
        //StringRedisTemplate的構造方法中默認設置了stringSerializer
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        //設置開啓事務
        template.setEnableTransactionSupport(true);
        //set key serializer
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        template.setKeySerializer(stringRedisSerializer);
        template.setHashKeySerializer(stringRedisSerializer);

        template.setConnectionFactory(jedisConnectionFactory());
        template.afterPropertiesSet();
        return template;
    }

}

這樣咱們的springboot與redis的哨兵模式搭建成功了。spa

 

二、疑問:.net

咱們pom只添加了redis依賴,並無jedis!!!沒有jedis,文中出現的jedis是咱們依賴redis中裏面的java類,不是單獨集成jedis的,並且使用RedisTemplate這樣就能夠使用哨兵模式了,springboot會自動分配處理。對象

但願你們不要把集成redis和集成jedis當作同樣的,若是有問題,請你們幫忙提出來留言,我會更改的!!!blog

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