最近项目中需要接入 Redis CacheCloud，CacheCloud是一个开源的 Redis 运维监控云平台，功能十分强大，支持Redis 实例自动部署、扩容、碎片管理、统计、监控等功能， 特别是支持单机、sentinel 、cluster三种模式的自动部署，搭建redis集群一步到位轻松搞定。
java项目中 接入 CacheCloud redis的方式主要有两种。
第一种就是在 CacheCloud 上创建好redis实例后将对应的IP，端口直接配置以配置形式应用到项目中，优点是通用性好，原有项目改造成本低，不过万一后期CacheCloud上对redis进行管理扩容，那只能手动把每个项目的redis配置都改一遍了。
第二种CacheCloud 上创建好实例后有一个对应的appId,程序调用CacheCloud 平台的rest接口通过 appId获取redis相关配置，将程序中的redis配置 统一交给CacheCloud平台去管理维护，后期管理和扩容及其方便，不过程序改造成本比较高。
现在采用第二种方式接入，工程采用springboot，redis采用哨兵模式，redis客户端主要用spring-data-redis和redisson, 接入流程如下:
添加配置到pom.xml文件
<!--cachecloud 相关jar包--> <dependency> <groupId>com.sohu.tv</groupId> <artifactId>cachecloud-open-client-redis</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.sohu.tv</groupId> <artifactId>cachecloud-open-client-basic</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.sohu.tv</groupId> <artifactId>cachecloud-open-common</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <!--spring redis 和 redisson--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <exclusions> <exclusion> <artifactId>jedis</artifactId> <groupId>redis.clients</groupId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.redisson</groupId> <artifactId>redisson</artifactId> <version>3.9.0</version> </dependency>
准备配置文件 cacheCloudClient.properties，启动项目时 VM参数追加 -Dcachecloud.config= 配置文件路径
http_conn_timeout = 3000http_socket_timeout = 5000client_version = 1.0-SNAPSHOTdomain_url = http://192.168.33.221:8585 #cachecloud实际路径redis_cluster_suffix = /cache/client/redis/cluster/%s.json?clientVersion=redis_sentinel_suffix = /cache/client/redis/sentinel/%s.json?clientVersion=redis_standalone_suffix = /cache/client/redis/standalone/%s.json?clientVersion=cachecloud_report_url = /cachecloud/client/reportData.json
基本思路是先通过cachecloud的restapi接口获取并解析redis节点的配置信息，然后就可以按照传统的访问redis的方式进行初始化，获取RedisTemplate对象。
java代码如下:
import com.alibaba.fastjson.JSONObject;import com.sohu.tv.cachecloud.client.basic.heartbeat.ClientStatusEnum;import com.sohu.tv.cachecloud.client.basic.util.ConstUtils;import com.sohu.tv.cachecloud.client.basic.util.HttpUtils;import com.sohu.tv.cachecloud.client.jedis.stat.ClientDataCollectReportExecutor;import lombok.Getter;import lombok.Setter;import org.apache.commons.lang3.tuple.Pair;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Component; import javax.annotation.PostConstruct;import java.util.HashSet;import java.util.Random;import java.util.Set;import java.util.concurrent.TimeUnit;import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReentrantLock; @Componentpublic class RedisProperties { public static Logger logger = LoggerFactory.getLogger(RedisProperties.class); /** * 构建锁 */ private static final Lock LOCK = new ReentrantLock(); @Value("${cacheCloud.appId}") //cahcecloud 开通redis实例 应用id private Integer appId; @Getter @Setter private String masterName; @Getter @Setter private Set<Pair<String, String>> sentinelSet = new HashSet<>(); private Boolean clientStatIsOpen=true; @Getter @Setter private String password; private Boolean getConfigSuccess = false; @PostConstruct public void init() { while (true) { try { LOCK.tryLock(10, TimeUnit.MILLISECONDS); if (!getConfigSuccess) { /** * http请求返回的结果是空的； */ String response = HttpUtils.doGet(String.format(ConstUtils.REDIS_SENTINEL_URL, appId)); if (response == null || response.isEmpty()) { logger.warn("get response from remote server error, appId: {}, continue...", appId); continue; } /** * http请求返回的结果是无效的； */ JSONObject jsonObject = null; try { jsonObject = JSONObject.parseObject(response); } catch (Exception e) { logger.error("heartbeat error, appId: {}. continue...", appId, e); } if (jsonObject == null) { logger.error("get sentinel info for appId: {} error. continue...", appId); continue; } int status = jsonObject.getIntValue("status"); String message = jsonObject.getString("message"); /** 检查客户端版本 **/ if (status == ClientStatusEnum.ERROR.getStatus()) { throw new IllegalStateException(message); } else if (status == ClientStatusEnum.WARN.getStatus()) { logger.warn(message); } else { logger.info(message); } /** * 有效的请求：取出masterName和sentinels； */ masterName = jsonObject.getString("masterName"); String sentinels = jsonObject.getString("sentinels"); for (String sentinelStr : sentinels.split(" ")) { String[] sentinelArr = sentinelStr.split(":"); if (sentinelArr.length == 2) { sentinelSet.add(Pair.of(sentinelArr[0], sentinelArr[1])); } } //收集上报数据 if (clientStatIsOpen) { ClientDataCollectReportExecutor.getInstance(); } password = jsonObject.getString("password"); getConfigSuccess = true; return; } } catch (Throwable e) {//容错 logger.error("error in build, appId: {}", appId, e); } finally { LOCK.unlock(); } try { TimeUnit.MILLISECONDS.sleep(200 + new Random().nextInt(1000));//活锁 } catch (InterruptedException e) { logger.error(e.getMessage(), e); } } }}
import com.shunwang.buss.dispatchPay.provider.config.PropertiesUtil;import org.apache.commons.lang3.StringUtils;import org.redisson.Redisson;import org.redisson.api.RedissonClient;import org.redisson.config.Config;import org.redisson.config.ReadMode;import org.redisson.config.SentinelServersConfig;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.Primary;import org.springframework.data.redis.connection.RedisConnectionFactory;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; import java.net.UnknownHostException;import java.util.List;import java.util.Set;import java.util.stream.Collectors; import static java.util.stream.Collectors.toList; @Configurationpublic class RedisConfig { /** * JedisPoolConfig 连接池 */ @Bean public JedisPoolConfig jedisPoolConfig(RedisProperties properties) { JedisPoolConfig jedisPoolConfig = new JedisPoolConfig(); // 最大空闲数 jedisPoolConfig.setMaxIdle(20); // 连接池的最大数据库连接数 jedisPoolConfig.setMaxTotal(20); // 最大建立连接等待时间 jedisPoolConfig.setMaxWaitMillis(3000); return jedisPoolConfig; } /** * 配置redis的哨兵 */ @Bean public RedisSentinelConfiguration sentinelConfiguration(RedisProperties properties) { RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration(); // 配置redis的哨兵sentinel Set<RedisNode> redisNodeSet = properties.getSentinelSet().stream() .map(pair -> new RedisNode(pair.getLeft(), Integer.parseInt(pair.getRight()))) .collect(Collectors.toSet()); redisSentinelConfiguration.setSentinels(redisNodeSet); redisSentinelConfiguration.setMaster(properties.getMasterName()); return redisSentinelConfiguration; } /** * 配置工厂 */ @Bean public RedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig, RedisSentinelConfiguration sentinelConfig) { JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(sentinelConfig, jedisPoolConfig); return jedisConnectionFactory; } @Bean public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) throws UnknownHostException { RedisTemplate template = new RedisTemplate(); template.setConnectionFactory(redisConnectionFactory); FastJsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<>(Object.class); // 设置值（value）的序列化采用FastJsonRedisSerializer。 template.setValueSerializer(fastJsonRedisSerializer); template.setHashValueSerializer(fastJsonRedisSerializer); // 设置键（key）的序列化采用StringRedisSerializer。 template.setKeySerializer(new StringRedisSerializer()); template.setHashKeySerializer(new StringRedisSerializer()); template.afterPropertiesSet(); return template; } /** * Redisson 配置 */ @Bean public RedissonClient redissonClient(RedisProperties properties) { Config config = new Config(); List<String> newNodes = properties.getSentinelSet().stream() .map(pa -> "redis://" + pa.getLeft() + ":" + pa.getRight()).collect(toList()); SentinelServersConfig serverConfig = config.useSentinelServers() .addSentinelAddress(newNodes.toArray(new String[newNodes.size()])) .setMasterName(properties.getMasterName()) .setReadMode(ReadMode.SLAVE); if (StringUtils.isNotBlank(properties.getPassword())){ serverConfig.setPassword(properties.getPassword()); } return Redisson.create(config); }}
到这里我们已经在Spring中 生成了RedisTemplate 和RedissonClient 对象，无论是基本数据结构操作 还是分布式锁 都已经轻松支持了，具体使用就不展开了
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。
本文标题: springboot接入cachecloud redis示例实践
以上就上有关springboot接入cachecloudredis示例实践的全部内容，学步园全面介绍编程技术、操作系统、数据库、web前端技术等内容。