【转】Java代码操作Redis的sentinel和Redis的集群Cluster操作
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.
直接看代码:
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....
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 }
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