SpringBoot Redis自適應(yīng)配置的方法

發(fā)布時間：2020-07-09 10:46:28 來源：億速云閱讀：204 作者：清晨欄目：開發(fā)技術(shù)

小編給大家分享一下SpringBoot Redis自適應(yīng)配置的方法，希望大家閱讀完這篇文章后大所收獲，下面讓我們一起去探討吧！

核心代碼段

提供一個JedisConnectionFactory 根據(jù)配置來判斷單點集群還是哨兵

 @Bean
 @ConditionalOnMissingBean
 public JedisConnectionFactory jedisConnectionFactory() {
  JedisConnectionFactory factory = null;
 
  String[] split = node.split(",");
  Set<HostAndPort> nodes = new LinkedHashSet<>();
  for (int i = 0; i < split.length; i++) {
   try {
    String[] split1 = split[i].split(":");
    nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1])));
   } catch (Exception e) {
    throw new RuntimeException(String.format("出現(xiàn)配置錯誤!請確認(rèn)node=[%s]是否正確", node));
   }
  }
  //獲得默認(rèn)的連接池構(gòu)造器(怎么設(shè)計的，為什么不抽象出單獨類，供用戶使用呢) 有毒
  JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpcb =
    (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
  //指定jedisPoolConifig來修改默認(rèn)的連接池構(gòu)造器（真麻煩，濫用設(shè)計模式！） ?。。。?
  jpcb.poolConfig(jedisPoolConfig);
  //通過構(gòu)造器來構(gòu)造jedis客戶端配置
  JedisClientConfiguration jedisClientConfiguration = jpcb.build();
 
  //如果是哨兵的模式
  if (!StringUtils.isEmpty(sentinel)) {
   logger.info("Redis use SentinelConfiguration");
   RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration();
   String[] sentinelArray = sentinel.split(",");
   for (String s : sentinelArray) {
    try {
     String[] split1 = s.split(":");
     redisSentinelConfiguration.addSentinel(new RedisNode(split1[0], Integer.parseInt(split1[1])));
    } catch (Exception e) {
     throw new RuntimeException(String.format("出現(xiàn)配置錯誤!請確認(rèn)node=[%s]是否正確", node));
    }
   }
   factory = new JedisConnectionFactory(redisSentinelConfiguration, jedisClientConfiguration);
 
  }
  //如果是單個節(jié)點 用Standalone模式
  else if (nodes.size() == 1) {
   logger.info("Redis use RedisStandaloneConfiguration");
   for (HostAndPort n : nodes) {
    RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
    if (!StringUtils.isEmpty(password)) {
     redisStandaloneConfiguration.setPassword(RedisPassword.of(password));
    }
    redisStandaloneConfiguration.setPort(n.getPort());
    redisStandaloneConfiguration.setHostName(n.getHost());
    factory = new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration);
   }
  }
  //集群配置信息實現(xiàn)
  else {
   logger.info("Redis use RedisStandaloneConfiguration");
   RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
   nodes.forEach(n -> {
    redisClusterConfiguration.addClusterNode(new RedisNode(n.getHost(), n.getPort()));
   });
   if (!StringUtils.isEmpty(password)) {
    redisClusterConfiguration.setPassword(RedisPassword.of(password));
   }
   redisClusterConfiguration.setMaxRedirects(maxRedirect);
   factory = new JedisConnectionFactory(redisClusterConfiguration, jedisClientConfiguration);
  }
  return factory;
 }

Configration

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cache.Cache;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.CacheErrorHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.*;
import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.util.StringUtils;
import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.JedisPoolConfig;
 
import java.util.LinkedHashSet;
import java.util.Set;
 
/**
 * @Author foxzzz
 * @Class SelfAdaptionRedisConfig
 * @Description 自適應(yīng)redis配置
 * 適用于 單點[主從] 哨兵模式 集群模式
 * @Date 2020/7/6 14:34
 */
 
@Configuration
@EnableCaching
public class SelfAdaptionRedisConfig<K, V> extends CachingConfigurerSupport {
 private final static Logger logger = LoggerFactory.getLogger(SelfAdaptionRedisConfig.class);
 
 @Value("${spring.redis.node}")
 private String node;
 @Value("${spring.redis.timeout:0}")
 private int timeout;
 @Value("${spring.redis.password:}")
 private String password;
 @Value("${spring.redis.sentinel:}")
 private String sentinel;
 
 @Value("${spring.redis.jedis.pool.max-total:8}")
 private int maxTotal;
 @Value("${spring.redis.jedis.pool.max-idle:8}")
 private int maxIdle;
 @Value("${spring.redis.jedis.pool.min-idle:0}")
 private int minIdle;
 @Value("${spring.redis.jedis.pool.max-wait:-1}")
 private long maxWaitMillis;
 @Value("${spring.redis.jedis.pool.test-on-borrow:true}")
 private boolean testOnBorrow;
 @Value("${spring.redis.jedis.factory.max-redirects:5}")
 private int maxRedirect;
 
 
 @Autowired
 private JedisPoolConfig jedisPoolConfig;
 @Autowired
 private JedisConnectionFactory jedisConnectionFactory;
 
 
 @Bean
 @ConditionalOnMissingBean
 @Override
 public CacheManager cacheManager() {
  // 初始化緩存管理器，在這里我們可以緩存的整體過期時間什么的，我這里默認(rèn)沒有配置
  logger.info("初始化 -> [{}]", "CacheManager RedisCacheManager Start");
  RedisCacheManager.RedisCacheManagerBuilder builder = RedisCacheManager
    .RedisCacheManagerBuilder
    .fromConnectionFactory(jedisConnectionFactory);
  return builder.build();
 }
 
 
 @Bean
 @ConditionalOnMissingBean
 @Override
 public CacheErrorHandler errorHandler() {
  // 異常處理，當(dāng)Redis發(fā)生異常時，打印日志，但是程序正常走
  logger.info("初始化 -> [{}]", "Redis CacheErrorHandler");
  CacheErrorHandler cacheErrorHandler = new CacheErrorHandler() {
   @Override
   public void handleCacheGetError(RuntimeException e, Cache cache, Object key) {
    logger.error("Redis occur handleCacheGetError：key -> [{}]", key, e);
   }
 
   @Override
   public void handleCachePutError(RuntimeException e, Cache cache, Object key, Object value) {
    logger.error("Redis occur handleCachePutError：key -> [{}]；value -> [{}]", key, value, e);
   }
 
   @Override
   public void handleCacheEvictError(RuntimeException e, Cache cache, Object key) {
    logger.error("Redis occur handleCacheEvictError：key -> [{}]", key, e);
   }
 
   @Override
   public void handleCacheClearError(RuntimeException e, Cache cache) {
    logger.error("Redis occur handleCacheClearError：", e);
   }
  };
  return cacheErrorHandler;
 }
 
 
 @Bean
 @ConditionalOnMissingBean
 public JedisPoolConfig jedisPoolConfig() {
  JedisPoolConfig config = new JedisPoolConfig();
  // 獲取連接時的最大等待毫秒數(shù)(如果設(shè)置為阻塞時BlockWhenExhausted),如果超時就拋異常, 小于零:阻塞不確定的時間, 默認(rèn)-1
  config.setMaxWaitMillis(maxWaitMillis);
  //最小空閑連接數(shù), 默認(rèn)0
  config.setMinIdle(minIdle);
  // 最大空閑連接數(shù), 默認(rèn)8個
  config.setMaxIdle(maxIdle);
  // 最大連接數(shù), 默認(rèn)值8個
  config.setMaxTotal(maxTotal);
  //對拿到的connection進行validateObject校驗
  config.setTestOnBorrow(testOnBorrow);
  return config;
 }
 
// private JedisCluster getJedisCluster() {
//  String[] split = node.split(",");
//  Set<HostAndPort> nodes = new LinkedHashSet<>();
//  for (int i = 0; i < split.length; i++) {
//   try {
//    String[] split1 = split[i].split(":");
//    nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1]))));
//   } catch (Exception e) {
//   }
//  }
//  JedisCluster jedisCluster = null;
//  if (StringUtils.isEmpty(password)) {
//   jedisCluster = new JedisCluster(nodes, 5000, 3000, 10, jedisPoolConfig);
//  } else {
//   jedisCluster = new JedisCluster(nodes, 5000, 3000, 10, password, jedisPoolConfig);
//  }
// }
 
 
 @Bean
 @ConditionalOnMissingBean
 public JedisConnectionFactory jedisConnectionFactory() {
  JedisConnectionFactory factory = null;
 
  String[] split = node.split(",");
  Set<HostAndPort> nodes = new LinkedHashSet<>();
  for (int i = 0; i < split.length; i++) {
   try {
    String[] split1 = split[i].split(":");
    nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1])));
   } catch (Exception e) {
    throw new RuntimeException(String.format("出現(xiàn)配置錯誤!請確認(rèn)node=[%s]是否正確", node));
   }
  }
  //獲得默認(rèn)的連接池構(gòu)造器(怎么設(shè)計的，為什么不抽象出單獨類，供用戶使用呢) 有毒
  JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpcb =
    (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
  //指定jedisPoolConifig來修改默認(rèn)的連接池構(gòu)造器（真麻煩，濫用設(shè)計模式?。??。。?！
  jpcb.poolConfig(jedisPoolConfig);
  //通過構(gòu)造器來構(gòu)造jedis客戶端配置
  JedisClientConfiguration jedisClientConfiguration = jpcb.build();
 
  //如果是哨兵的模式
  if (!StringUtils.isEmpty(sentinel)) {
   logger.info("Redis use SentinelConfiguration");
   RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration();
   String[] sentinelArray = sentinel.split(",");
   for (String s : sentinelArray) {
    try {
     String[] split1 = s.split(":");
     redisSentinelConfiguration.addSentinel(new RedisNode(split1[0], Integer.parseInt(split1[1])));
    } catch (Exception e) {
     throw new RuntimeException(String.format("出現(xiàn)配置錯誤!請確認(rèn)node=[%s]是否正確", node));
    }
   }
   factory = new JedisConnectionFactory(redisSentinelConfiguration, jedisClientConfiguration);
 
  }
  //如果是單個節(jié)點 用Standalone模式
  else if (nodes.size() == 1) {
   logger.info("Redis use RedisStandaloneConfiguration");
   for (HostAndPort n : nodes) {
    RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
    if (!StringUtils.isEmpty(password)) {
     redisStandaloneConfiguration.setPassword(RedisPassword.of(password));
    }
    redisStandaloneConfiguration.setPort(n.getPort());
    redisStandaloneConfiguration.setHostName(n.getHost());
    factory = new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration);
   }
  }
  //集群配置信息實現(xiàn)
  else {
   logger.info("Redis use RedisStandaloneConfiguration");
   RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
   nodes.forEach(n -> {
    redisClusterConfiguration.addClusterNode(new RedisNode(n.getHost(), n.getPort()));
   });
   if (!StringUtils.isEmpty(password)) {
    redisClusterConfiguration.setPassword(RedisPassword.of(password));
   }
   redisClusterConfiguration.setMaxRedirects(maxRedirect);
   factory = new JedisConnectionFactory(redisClusterConfiguration, jedisClientConfiguration);
  }
  return factory;
 }
 
 
 @Bean
 @ConditionalOnMissingBean
 public RedisTemplate<String, Object> redisTemplate(JedisConnectionFactory jedisConnectionFactory) {
  //設(shè)置序列化
  Jackson2JsonRedisSerializer 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);
  // 配置redisTemplate
  RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
  redisTemplate.setConnectionFactory(jedisConnectionFactory);
  RedisSerializer stringSerializer = new StringRedisSerializer();
  // key序列化
  redisTemplate.setKeySerializer(stringSerializer);
  // value序列化
  redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
//  redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
  // Hash key序列化
  redisTemplate.setHashKeySerializer(stringSerializer);
  // Hash value序列化
  redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
  redisTemplate.afterPropertiesSet();
  return redisTemplate;
 }
}

pom依賴

<dependencies>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-redis</artifactId>
   <version>${springboot.version}</version>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter</artifactId>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>redis.clients</groupId>
   <artifactId>jedis</artifactId>
   <version>${redis.version}</version>
  </dependency>
 
  <dependency>
   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-annotations</artifactId>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-databind</artifactId>
   <scope>provided</scope>
  </dependency>
  <dependency>
   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-core</artifactId>
   <scope>provided</scope>
  </dependency>
 </dependencies>

配置文件

1.yml配置

1.1支持 Cluster模式集群

node有多個redis的地址,以逗號分隔
如果redis沒有密碼直接去掉配置就可以了 yml配置

spring:
 redis:
 node: 127.0.0.1:1001,127.0.0.1:1002,127.0.0.1:1003
 password: 123456

properties配置

spring.redis.node=127.0.0.1:1001,127.0.0.1:1002,127.0.0.1:1003
spring.redis.password=123456

1.2支持 Standalone模式單點

node里只有一個redis地址的時候,會自動變成單點模式 yml配置

spring:
 redis:
 node: 127.0.0.1:1001
 password: 123456

properties配置

spring.redis.node=127.0.0.1:1001
spring.redis.password=123456

1.3支持 Sentinel模式哨兵

當(dāng)配置上sentinel以后就變成了哨兵模式多個哨兵可以以逗號分割 yml配置

spring:
 redis:
 node: 127.0.0.1:1001
 sentinel:127.0.0.1:1002,127.0.0.1:1003
 password: 123456

properties配置

spring.redis.node=127.0.0.1:1001
spring.redis.sentinel:127.0.0.1:1002,127.0.0.1:1003
spring.redis.password=123456

1.4覆蓋默認(rèn)配置

如果沒有配置這些信息,就會走默認(rèn)配置也可以在properties或者yml覆蓋默認(rèn)配置

#最大連接數(shù), 默認(rèn)值8個
spring.redis.jedis.pool.max-total=8
#最大空閑連接數(shù), 默認(rèn)8個
spring.redis.jedis.pool.max-idle=8
#最小空閑連接數(shù), 默認(rèn)0
spring.redis.jedis.pool.min-idle=0
#獲取連接時的最大等待毫秒數(shù),如果超時就拋異常, 小于零:阻塞不確定的時間, 默認(rèn)-1
spring.redis.jedis.pool.max-wait=-1
#對拿到的connection進行validateObject校驗
spring.redis.jedis.pool.test-on-borrow=true
#集群時最大重定向個數(shù)默認(rèn)5
spring.redis.jedis.factory.max-redirects=5

使用

代碼使用

@Autowired
 private RedisTemplate<String, Object> redisTemplate;

看完了這篇文章，相信你對SpringBoot Redis自適應(yīng)配置的方法有了一定的了解，想了解更多相關(guān)知識，歡迎關(guān)注億速云行業(yè)資訊頻道，感謝各位的閱讀！

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