java连接redis-主从复制,哨兵模式

1 简单的主从复制模式

public class TextMS {
 
    public static void main(String[] args) {
        Jedis jedis_M = new Jedis("127.0.0.1",6379);
        Jedis jedis_S = new Jedis("127.0.0.1",6380);
 
        //从机连接到主机
        jedis_S.slaveof("127.0.0.1",6379);
 
        //主机写入
        jedis_M.set("class","1122");
 
        //从机读取
        String result = jedis_S.get("class");
        System.out.println(result);
    }

2 哨兵模式

	// 连接池配置
	JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
	jedisPoolConfig.setMaxTotal(10);
	jedisPoolConfig.setMaxIdle(5);
	jedisPoolConfig.setMinIdle(5);
	
	// 哨兵信息
	Set<String> sentinels = new HashSet<String>(Arrays.asList("192.168.11.128:6379", "192.168.11.129:6379", "192.168.11.130:6379"));
	
	//创建连接池
	//mymaster是我们配置给哨兵的服务名称
	// 123 连接redis服务器的密码
	JedisSentinelPool pool = new JedisSentinelPool("mymaster", sentinels, jedisPoolConfig, "123");
	//获取客户端
	Jedis jedis = pool.getResource();
	
	//执行两个命令
	jedis.set("mykey", "myvalue");
	System.out.println(jedis.get("mykey"));

3 在spring中使用哨兵模式

<?xml version='1.0' encoding='UTF-8' ?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">

	<!--配置Redis连接池 -->
	<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
		<property name="maxIdle" value="50" />  <!--最大空闲数 -->
		<property name="maxTotal" value="100" />  <!--最大连接数 -->
		<property name="maxWaitMillis" value="3000" />  <!--最大等待时间3s -->
	</bean>

	<!--jdk序列化器，可保存对象 -->
	<bean id="jdkSerializationRedisSerializer"
		class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />

	<!--String序列化器 -->
	<bean id="stringRedisSerializer"
		class="org.springframework.data.redis.serializer.StringRedisSerializer" />

		<!--哨兵配置 -->
	<bean id="sentinelConfig"
		class="org.springframework.data.redis.connection.RedisSentinelConfiguration">
		<!--服务名称 -->
		<property name="master">
			<bean class="org.springframework.data.redis.connection.RedisNode">
				<property name="name" value="mymaster" />
			</bean>
		</property>
		<!--哨兵服务IP和端口 -->
		<property name="sentinels">
			<set>
				<bean class="org.springframework.data.redis.connection.RedisNode">
					<constructor-arg name="host" value="192.168.11.128" />
					<constructor-arg name="port" value="26379" />
				</bean>
				<bean class="org.springframework.data.redis.connection.RedisNode">
					<constructor-arg name="host" value="192.168.11.129" />
					<constructor-arg name="port" value="26379" />
				</bean>
				<bean class="org.springframework.data.redis.connection.RedisNode">
					<constructor-arg name="host" value="192.168.11.130" />
					<constructor-arg name="port" value="26379" />
				</bean>
			</set>
		</property>
	</bean>			

	<!--连接池设置 -->
	<bean id="connectionFactory"
		class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
		<constructor-arg name="sentinelConfig" ref="sentinelConfig" />
		<constructor-arg name="poolConfig" ref="poolConfig" />
		<property name="password" value="abcdefg" />
	</bean>

	<!--配置RedisTemplate -->
	<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
		<property name="connectionFactory" ref="connectionFactory" />
		<property name="keySerializer" ref="stringRedisSerializer" />
		<property name="defaultSerializer" ref="stringRedisSerializer" />
		<property name="valueSerializer" ref="jdkSerializationRedisSerializer" />
	</bean>
</beans>

测试

	public static void testSpringSentinel() {
		ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:application.xml");
		RedisTemplate redisTemplate = ctx.getBean(RedisTemplate.class);
		String retVal = (String) redisTemplate.execute((RedisOperations ops) -> {
			ops.boundValueOps("mykey").set("myvalue");
			String value = (String) ops.boundValueOps("mykey").get();
			return value;
		});
		System.out.println(retVal);
	}