五、java操作redis

系列导航

一、redis单例安装(linux)

二、redis主从环境搭建

三、redis集群搭建

四、redis增加密码验证

五、java操作redis

 

--demo主方法

package com.redis;

import com.JedisCluster;
import java.util.HashSet;
 
/**
 * 描述:redis集群样例。
 * <p>项目名称: redis集群</p>
 * <p>文件名称: DemonMain.java</p>
 */
public class DemonMain {
    static HashSet set = new HashSet();
    private static JedisClusterFactory jedisClusterFactory = new JedisClusterFactory();
    private static JedisCluster jedisCluster = jedisClusterFactory.getJedisCluster();
 

    /**
     * 描述:redis测试是的主函数。
     *
     * @param args 主函数的参数
     */
    public static void main(String[] args) {
        RedisService rs = new RedisService();
        //普通的操作
        jedisCluster.set("key", "0");
        String value = jedisCluster.get("key");
    }
}

//redis操作不同的数据集可以参考https://www.cnblogs.com/edisonfeng/p/3571870.html 写的比较全面

//本例主要提供一个连接redis集群的公共配置类

 

----连接配置类

package com.redis;

import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.JedisCluster;
import redis.clients.jedis.JedisPoolConfig;

import java.util.HashSet;
import java.util.Set;

/**
 * 描述:redis集群样例。
 * <p>项目名称: redis集群</p>
 */
public class JedisClusterFactory {
    private static final String MODULE = JedisClusterFactory.class.getName();


    JedisPoolConfig poolConfig;

    private JedisCluster jedisCluster;
    private int connectionTimeout = 1000;
    private int soTimeout = 2000;
    private int maxRedirections = 30;

    private Set<String> jedisClusterNodes;

    private static JedisClusterFactory instance = null;

    /**
     * 描述:redis的构造函数(配置信息)。
     */
    public JedisClusterFactory() {
        try {
            Set<HostAndPort> haps = new HashSet<HostAndPort>();
 

            String hostIp = "127.0.0.1";
            haps.add(new HostAndPort(hostIp, 7001));
            haps.add(new HostAndPort(hostIp, 7002));
            haps.add(new HostAndPort(hostIp, 7003));
            haps.add(new HostAndPort(hostIp, 7004));
            haps.add(new HostAndPort(hostIp, 7005));
            haps.add(new HostAndPort(hostIp, 7006));


            JedisPoolConfig poolConfig = new JedisPoolConfig();
            // 控制一个pool可分配多少个jedis实例,通过pool.getResource()来获取;
            // 如果赋值为-1,则表示不限制;如果pool已经分配了maxActive个jedis实例,则此时pool的状态为exhausted(耗尽)。
            poolConfig.setMaxTotal(20);

            // 控制一个pool最多有多少个状态为idle(空闲的)的jedis实例。
            poolConfig.setMaxIdle(50);
            poolConfig.setMinIdle(20);
            // 表示当borrow(引入)一个jedis实例时,最大的等待时间,如果超过等待时间,则直接抛出JedisConnectionException;
            poolConfig.setMaxWaitMillis(1000 * 100);
            // 在borrow一个jedis实例时,是否提前进行validate操作;如果为true,则得到的jedis实例均是可用的;
            poolConfig.setTestOnBorrow(true);
        //密码
            String password = "redispass";
            jedisCluster = new JedisCluster(haps, connectionTimeout, soTimeout, maxRedirections, password, poolConfig);
            //如下是不加密码的写法
            //jedisCluster = new JedisCluster(haps, connectionTimeout, soTimeout, maxRedirections, poolConfig);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 描述:redis的构造函数(配置信息)。
     *
     * @return JedisClusterFactory redis集群的连接信息
     */
    public static synchronized JedisClusterFactory getInstance() {
        if (instance == null) {
            instance = new JedisClusterFactory();
        }
        return instance;
    }


    public JedisPoolConfig getPoolConfig() {
        return poolConfig;
    }

    public void setPoolConfig(JedisPoolConfig poolConfig) {
        this.poolConfig = poolConfig;
    }

    public JedisCluster getJedisCluster() {
        return jedisCluster;
    }

    public void setJedisCluster(JedisCluster jedisCluster) {
        this.jedisCluster = jedisCluster;
    }

    public int getConnectionTimeout() {
        return connectionTimeout;
    }

    public void setConnectionTimeout(int connectionTimeout) {
        this.connectionTimeout = connectionTimeout;
    }

    public int getSoTimeout() {
        return soTimeout;
    }

    public void setSoTimeout(int soTimeout) {
        this.soTimeout = soTimeout;
    }

    public int getMaxRedirections() {
        return maxRedirections;
    }

    public void setMaxRedirections(int maxRedirections) {
        this.maxRedirections = maxRedirections;
    }

    public Set<String> getJedisClusterNodes() {
        return jedisClusterNodes;
    }

    public void setJedisClusterNodes(Set<String> jedisClusterNodes) {
        this.jedisClusterNodes = jedisClusterNodes;
    }
}
                                                    

posted @ 2021-05-21 17:15  万笑佛  阅读(188)  评论(0编辑  收藏  举报