一、java操作redis集群


Java操作集群


Set jedisClusterNodes=new HashSet();

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7001));

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7002));

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7003));

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7004));

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7005));

jedisClusterNodes.add(new HostAndPort("192.168.1.124",7006));



JedisPoolConfig jedisPoolConfig=new JedisPoolConfig();

jedisPoolConfig.setMaxTotal(100);

jedisPoolConfig.setMaxIdle(20);

jedisPoolConfig.setMaxWaitMillis(-1);

jedisPoolConfig.setTestOnBorrow(true);


//节点,超时时间,最多重定向次数,链接池

JedisCluster jedisCluster=new JedisCluster(jedisClusterNodes,6000,1000,jedisPoolConfig);

System.out.println(jedisCluster.set("jedisClustername", "jedisClusterwlan"));

System.out.println(jedisCluster.set("jedisClustersex", "男"));

System.out.println(jedisCluster.get("jedisClustername"));

jedisCluster.close();



二、spring整合redis集群

    

  程序启动时,将数据缓存到redis中,如果修改操作再将缓存中的数据更新。针对一些不经常修改但是高访问率的数据进行缓存来减少关系型数据库的压力



1、redis.xml配置文件中


//redis线程池的配置

JedisPoolConfig">

    

    

    

    

    

    

    

//redis集群的配置

RedisClusterConfiguration">

   

   

    192.168.90.124:7001

    192.168.90.124:7002

    192.168.90.124:7003

    192.168.90.124:7004

    192.168.90.124:7005

    192.168.90.124:7006

   

   

   


//redis集群的连接工厂

JedisConnectionFactory">

    

       redisClusterConfig"/>

    

    

       jedisPoolConfig"/>

    

    

或者单个redis的连接工厂配置

  poolConfig" ref="jedisPoolConfig" />

  hostName" value="192.168.90.124" />

  port" value="6379" />

 

  usePool" value="true" />


//redis操作模板

RedisTemplate">

    



RedisTemplate源码中有以下几个对象

//RedisTemplate中封装了操作对象,有如下几个:

private ValueOperations valueOps;

private ListOperations listOps;

private SetOperations setOps;

private ZSetOperations zSetOps;

private HyperLogLogOperations hllOps;



2. Spring中使用RedisTemplate模板,封装几种类型的操作


//整合redis各种类型操作,在service中注入该对象,并调用响应的操作

@Service("redisService")

public class RedisService {


    @Autowired //注入RedisTemplate

    public RedisTemplate redisTemplate;


    public ValueOperations setCacheObject(String key,T value){

      ValueOperations operation=redisTemplate.opsForValue();

      operation.set(key, value);

      return operation;

    }

    public T getCacheObject(String key){

      ValueOperations operation=redisTemplate.opsForValue();

      return operation.get(key);

    }

}


4. spring redis缓存使用:注解


(1)在redis.xml配置文件中添加

//redis缓存管理器

RedisCacheManager">

    

    

    

    

    

<cache:annotation-driven cache-manager="redisCacheManager"/>


(2)项目中操作

@CacheConfig(cacheNames="prizeinfo")

@Service(value="springRedisService")

public class SpringRedisServiceImpl implements SpringRedisService{

     @Autowired

     private PrizeinfoService prizeinfoService;

    

     @Cacheable(key="'id:'+#id")

     public Prizeinfo getObject(int id) {

       return prizeinfoService.getPrizeinfoById(id);

     }

     @CachePut(key="'id:'+#o.id")

     public int insertObject(Prizeinfo o) {

       return prizeinfoService.insertPrizeinfo(o);

     }

     @CachePut(key="'id:'+#prizeinfo.id")

     public int updateObject(Prizeinfo prizeinfo) {

       return prizeinfoService.updatePrizeinfo(prizeinfo);

     }

     @CacheEvict(key="'id:'+#id")

     public int deleteObjectById(int id) {

       return prizeinfoService.deletePrizeinfoById(id);

     }

}