redis使用

JedisUtil

package com.lv.redis;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

/**
 * Created by lvyanghui
 * 2018/6/14 16:40
 */
public class JedisUtil {
    private static JedisPool pool = null;

    public static JedisPool getPool() {
        if (pool == null) {
            JedisPoolConfig config = new JedisPoolConfig();
            config.setMaxTotal(500);
            config.setMaxIdle(5);
            config.setMaxWaitMillis(1000*10);
            //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；
            config.setTestOnBorrow(true);
            //new JedisPool(config, ADDR, PORT, TIMEOUT, AUTH);
            pool = new JedisPool(config, "127.0.0.1", 6379, 10000);

        }
        return pool;
    }

    public synchronized static Jedis getResource() {
        if (pool == null) {
            pool = getPool();
        }
        return pool.getResource();
    }

    // 返还到连接池
    // Deprecated
    // 换成用完之后, redis.close()
    /*
    public static void returnResource(Jedis redis) {
        if (redis != null) {
            pool.returnResource(redis);
        }
    }
    */

    public static void main(String[] args) {
        Jedis redis = null;
        int loop = 1;
        while (loop < 20) {
            try {
                long start = System.currentTimeMillis();
                redis = getResource();
                redis.set("k1", "v1");
                String ret = redis.get("k1");
                long end = System.currentTimeMillis();
                System.out.printf("Get ret from redis: %s with %d millis\n", ret, end-start);
            } finally {
                if (redis != null) {
                    redis.close();
                }
            }
            loop++;
        }
    }
}

RedisPoolUtil

package com.lv.redis;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

import java.util.Properties;

/**
 * Created by lvyanghui
 * 2018/6/14 16:53
 */
public class RedisPoolUtil {

    private static JedisPool jedisPool = null;
    private static String redisConfigFile = "redis.properties";
    //把redis连接对象放到本地线程中
    private static ThreadLocal local=new ThreadLocal();

    //不允许通过new创建该类的实例
    private RedisPoolUtil() {
    }

    /**
     * 初始化Redis连接池
     */
    public static void initialPool() {
        try {
            Properties props = new Properties();
            //加载连接池配置文件
            props.load(RedisPoolUtil.class.getClassLoader().getResourceAsStream(redisConfigFile));
            // 创建jedis池配置实例
            JedisPoolConfig config = new JedisPoolConfig();
            // 设置池配置项值
            config.setMaxTotal(Integer.valueOf(props.getProperty("jedis.pool.maxActive")));
            config.setMaxIdle(Integer.valueOf(props.getProperty("jedis.pool.maxIdle")));
            config.setMaxWaitMillis(Long.valueOf(props.getProperty("jedis.pool.maxWait")));
            config.setTestOnBorrow(Boolean.valueOf(props.getProperty("jedis.pool.testOnBorrow")));
            config.setTestOnReturn(Boolean.valueOf(props.getProperty("jedis.pool.testOnReturn")));
            // 根据配置实例化jedis池
            jedisPool = new JedisPool(config, props.getProperty("redis.ip"),
                    Integer.valueOf(props.getProperty("redis.port")),
                    Integer.valueOf(props.getProperty("redis.timeout")));
            System.out.println("线程池被成功初始化");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 获得连接
     * @return Jedis
     */
    public static Jedis getConn() {
        //Redis对象
        Jedis jedis =local.get();
        if(jedis==null){
            if (jedisPool == null) {
                initialPool();
            }
            jedis = jedisPool.getResource();
            local.set(jedis);
        }
        return jedis;
    }

    //新版本用close归还连接
    public static void closeConn(){
        //从本地线程中获取
        Jedis jedis =local.get();
        if(jedis!=null){
            jedis.close();
        }
        local.set(null);
    }

    //关闭池
    public static void closePool(){
        if(jedisPool!=null){
            jedisPool.close();
        }
    }
}

RedisTest

package com.lv.redis;

import redis.clients.jedis.Jedis;

import java.util.List;

/**
 * Created by LocalUser on 2018/1/25.
 */
public class RedisTest {

    public static void main(String[] args)throws Exception{

        Jedis conn = RedisUtil.newInstance();


        conn.flushAll();
        //string
        /*conn.set("userId","80574102");
        conn.set("userId","00790433");
        conn.expire("userId",1000);
        conn.del("userId");
        System.out.println(conn.get("userId"));*/


        //list
        /*conn.rpush("listKey", "item1");
        conn.rpush("listKey", "item2");
        conn.rpush("listKey", "item3");
        conn.rpush("listKey", "item3");
        System.out.println(conn.lindex("listKey",0));
        System.out.println(conn.lrange("listKey", 0, 5));
        System.out.println(conn.rpop("listKey"));
        System.out.println(conn.lindex("listKey",0));
        System.out.println(conn.lrange("listKey",0,5));*/


        //set
        /*conn.sadd("setKey","item1");
        conn.sadd("setKey","item2");
        conn.sadd("setKey","item3");
        long sts = conn.sadd("setKey","item1");
        System.out.println(sts);
        System.out.println(conn.smembers("setKey"));
        System.out.println(conn.sismember("setKey", "item1"));
        System.out.println(conn.srem("setKey","item1"));
        System.out.println(conn.smembers("setKey"));
        System.out.println(conn.sismember("setKey", "item1"));*/


        //hashset
        /*conn.hset("hashSet","key1","item1");
        conn.hset("hashSet","key2","item2");
        conn.hset("hashSet","key3","item3");
        long sts = conn.hset("hashSet","key1","item1");
        System.out.println(sts);
        System.out.println(conn.hgetAll("hashSet"));
        System.out.println(conn.hget("hashSet", "key1"));
        System.out.println(conn.hdel("hashSet","key1"));
        System.out.println(conn.hgetAll("hashSet"));
        System.out.println(conn.hget("hashSet", "key1"));*/


        //numset
        /*conn.zadd("numset",234,"item1");
        conn.zadd("numset",345,"item2");
        conn.zadd("numset",589,"item3");
        long sts = conn.zadd("numset",234,"item1");
        System.out.println(sts);
        System.out.println(conn.zrange("numset",0,-1));
        System.out.println(conn.zrangeByScore("numset", 0, 400));
        System.out.println(conn.zrem("numset","item1"));
        System.out.println(conn.zrange("numset",0,-1));
        System.out.println(conn.zrangeByScore("numset", 0, 400));*/


        /*for (int i = 0; i < 10; i++) {
            User user = new User();
            user.setId(i+"");
            user.setName("kk" + i);
            user.setAge(i+"");
            user.setAddress("深圳"+i);
            conn.rpush("user".getBytes(), SerializeUtil.serialize(user));
        }

        byte[] bytes = conn.lpop("user".getBytes());

        User user0 = (User)SerializeUtil.unserialize(bytes);

        System.out.println(user0.getAddress());*/

        long time = System.currentTimeMillis();
        for (int i = 0; i < 10000; i++) {
            User user = new User();
            user.setId(i+"");
            user.setName("kk" + i);
            user.setAge(i+"");
            user.setAddress("深圳"+i);
            conn.rpush("user", StringUtil.BeanToString(user));
        }

        List resultList =  conn.lrange("user",0,10000);

        for (int i = 0; i < resultList.size(); i++) {
            User user = StringUtil.StringToBean(resultList.get(i));
            System.out.println(user.getAddress());
        }

        /*List> mapList = new ArrayList>();
        for (int i = 0; i < resultList.size(); i++) {
            Map map = StringUtil.StringToMap(resultList.get(i));
            mapList.add(map);
        }

        List userlist = MapUtil.mapsToObjects(mapList,User.class);*/
        System.out.println((System.currentTimeMillis() - time) / 1000);

    }
}