Java代码操作Redis的sentinel和Redis的集群Cluster操作-白红宇

Java代码操作Redis的sentinel和Redis的集群Cluster操作

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发布时间：2019-05-20

本文共 2635 字，大约阅读时间需要 8 分钟。

Jedis操作Redis的sentinel示例代码:

总共四台机器,crxy99,crxy98分别是主节点和从节点. crxy97和crxy96是两个监控此主从架构的sentinel节点.

上代码:

1 import org.junit.Test; 2  3 import redis.clients.jedis.HostAndPort; 4 import redis.clients.jedis.Jedis; 5 import redis.clients.jedis.JedisPoolConfig; 6 import redis.clients.jedis.JedisSentinelPool; 7  8 public class TestSentinel { 9     @Test10     public void test1() {11         JedisPoolConfig poolConfig = new JedisPoolConfig();12         String masterName = "mymaster";13         Set
     
       sentinels = new HashSet
      
       ();14         sentinels.add("192.168.1.97:26379");15         sentinels.add("192.168.1.96:26379");16         JedisSentinelPool jedisSentinelPool = new JedisSentinelPool(masterName, sentinels, poolConfig);17         HostAndPort currentHostMaster = jedisSentinelPool.getCurrentHostMaster();18         System.out.println(currentHostMaster.getHost()+"--"+currentHostMaster.getPort());//获取主节点的信息19         Jedis resource = jedisSentinelPool.getResource();20         String value = resource.get("a");21         System.out.println(value);//获得键a对应的value值22         resource.close();23     }24 25 }

运行结果入下:

192.168.1.99--63791

Jedis操作集群示例代码:

模拟的集群环境.在一台机器上启动多个redis..每个redis对应的是不同端口.

在crxy99 192.168.1.99上启动的....总共3主3从端口号对应的的是7000~7005.....

看代码:

1 import java.util.HashSet; 2 import java.util.Set; 3 import org.junit.Test; 4 import redis.clients.jedis.HostAndPort; 5 import redis.clients.jedis.JedisCluster; 6 import redis.clients.jedis.JedisPoolConfig; 7  8 public class TestCluster { 9     @Test10     public void test1() throws Exception {11         JedisPoolConfig poolConfig = new JedisPoolConfig();12         Set
     
       nodes = new HashSet
      
       ();13         HostAndPort hostAndPort = new HostAndPort("192.168.1.99", 7000);14         HostAndPort hostAndPort1 = new HostAndPort("192.168.1.99", 7001);15         HostAndPort hostAndPort2 = new HostAndPort("192.168.1.99", 7002);16         HostAndPort hostAndPort3 = new HostAndPort("192.168.1.99", 7003);17         HostAndPort hostAndPort4 = new HostAndPort("192.168.1.99", 7004);18         HostAndPort hostAndPort5 = new HostAndPort("192.168.1.99", 7005);19         nodes.add(hostAndPort);20         nodes.add(hostAndPort1);21         nodes.add(hostAndPort2);22         nodes.add(hostAndPort3);23         nodes.add(hostAndPort4);24         nodes.add(hostAndPort5);25         JedisCluster jedisCluster = new JedisCluster(nodes, poolConfig);//JedisCluster中默认分装好了连接池.26         //redis内部会创建连接池，从连接池中获取连接使用，然后再把连接返回给连接池27         String string = jedisCluster.get("a");28         System.out.println(string);            29     }30 }