Jedis工具类代码

　　安装Redis可以参考 https://www.cnblogs.com/dddyyy/p/9763098.html

　　Redis的学习可以参考https://www.cnblogs.com/dddyyy/p/9803828.html 谢谢啦！

1.基本使用

　　因为Jedis工具类使用的是连接池，那么我们就来看一下连接池最简单的Demo，这样可以有助于了解后面的工具类代码。

　　先可以使用Maven工程来导包呀

　　

 <dependency>
         <groupId>redis.clients</groupId>
         <artifactId>jedis</artifactId>
         <version>2.6.3</version>
         <type>jar</type>
         <scope>compile</scope>
   </dependency>

　　编写个测试类

package com.JedisTest;

import org.junit.Test;

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

public class JedisTest {

    @Test
    public void Test1() {
        //创建一个连接池 参数为你的Redis安装的ip地址和端口
        JedisPool jedisPool = new JedisPool("192.168.25.128",6379);
        //从连接池拿个连接资源
        Jedis jedis = jedisPool.getResource();//获取资源
        //设置Key-Value
        jedis.set("myname", "dingyu");
        //根据Key 取 Value
        String name = jedis.get("myname");
        System.out.println(name);
        //关闭连接资源
        jedis.close();
        //关闭连接池
        jedisPool.close();
    }
}

　　测试结果

2.工具类

　　

package JedisTool;


public interface JedisClient {

    String set(String key, String value);
    String get(String key);
    Boolean exists(String key);
    Long expire(String key, int seconds);
    Long ttl(String key);
    Long incr(String key);
    Long hset(String key, String field, String value);
    String hget(String key, String field);    
    Long hdel(String key,String... field);//删除hkey    
}

package JedisTool;

import org.springframework.beans.factory.annotation.Autowired;

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

public class JedisClientPool implements JedisClient {
    
    @Autowired
    private JedisPool jedisPool;

    @Override
    public String set(String key, String value) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.set(key, value);
        jedis.close();
        return result;
    }

    @Override
    public String get(String key) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.get(key);
        jedis.close();
        return result;
    }

    @Override
    public Boolean exists(String key) {
        Jedis jedis = jedisPool.getResource();
        Boolean result = jedis.exists(key);
        jedis.close();
        return result;
    }

    @Override
    public Long expire(String key, int seconds) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.expire(key, seconds);
        jedis.close();
        return result;
    }

    @Override
    public Long ttl(String key) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.ttl(key);
        jedis.close();
        return result;
    }

    @Override
    public Long incr(String key) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.incr(key);
        jedis.close();
        return result;
    }

    @Override
    public Long hset(String key, String field, String value) {
        Jedis jedis = jedisPool.getResource();
        Long result = jedis.hset(key, field, value);
        jedis.close();
        return result;
    }

    @Override
    public String hget(String key, String field) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.hget(key, field);
        jedis.close();
        return result;
    }

    @Override
    public Long hdel(String key, String... field) {
        Jedis jedis = jedisPool.getResource();
        Long hdel = jedis.hdel(key, field);
        jedis.close();
        return hdel;
    }    

}

package JedisTool;

import org.springframework.beans.factory.annotation.Autowired;

import redis.clients.jedis.JedisCluster;
/**
 * 主要用于集群的时候连接Redis
 * 
 *
 */
public class JedisClientCluster implements JedisClient {
    
    @Autowired
    private JedisCluster jedisCluster;

    @Override
    public String set(String key, String value) {
        return jedisCluster.set(key, value);
    }

    @Override
    public String get(String key) {
        return jedisCluster.get(key);
    }

    @Override
    public Boolean exists(String key) {
        return jedisCluster.exists(key);
    }

    @Override
    public Long expire(String key, int seconds) {
        return jedisCluster.expire(key, seconds);
    }

    @Override
    public Long ttl(String key) {
        return jedisCluster.ttl(key);
    }

    @Override
    public Long incr(String key) {
        return jedisCluster.incr(key);
    }

    @Override
    public Long hset(String key, String field, String value) {
        return jedisCluster.hset(key, field, value);
    }

    @Override
    public String hget(String key, String field) {
        return jedisCluster.hget(key, field);
    }

    @Override
    public Long hdel(String key, String... field) {
        // TODO Auto-generated method stub
        return jedisCluster.hdel(key, field);
    }

}

 　　

<!-- spring的写法 -->
<!-- 配置单机版 -->
<bean class="redis.clients.jedis.JedisPool">
        <constructor-arg name="host" value="192.168.25.153"</constructor-arg>
        <constructor-arg name="port" value="6379"></constructor-arg>
</bean>
<!-- 配置集群版 -->
<bean class="redis.clients.jedis.JedisCluster">
        <constructor-arg name="nodes">
            <set>
                <bean class="redis.clients.jedis.HostAndPort">
                    <constructor-arg name="host" value="192.168.25.153"></constructor-arg>
                    <constructor-arg name="port" value="7001"></constructor-arg>
                </bean>
                <bean class="redis.clients.jedis.HostAndPort">
                    <constructor-arg name="host" value="192.168.25.153"></constructor-arg>
                    <constructor-arg name="port" value="7002"></constructor-arg>
                </bean>
　　　　　　</set>　

</constructor-arg>
</bean>