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

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

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     @Test
10     public void test1() {
11         JedisPoolConfig poolConfig = new JedisPoolConfig();
12         String masterName = "mymaster";
13         Set<String> sentinels = new HashSet<String>();
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--6379
1

 

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     @Test
10     public void test1() throws Exception {
11         JedisPoolConfig poolConfig = new JedisPoolConfig();
12         Set<HostAndPort> nodes = new HashSet<HostAndPort>();
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 }