java 里使用 1

Dettan

2022-01-18 / 0 评论 / 0 点赞 / 54 阅读 / 3,965 字

01/18

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/ DATA / NOSQL / Redis / java 里使用 1

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
</dependency>

方法名都和操作的名一样

package com.yh.test;
import org.junit.Test;
import redis.clients.jedis.Jedis;

import redis.clients.jedis.JedisPool;

import redis.clients.jedis.JedisPoolConfig;
public class JedisTest {
@Test
public void fun(){
	//创建jedis客户端对象
	Jedis jedis = new Jedis(&quot;172.16.31.22&quot;, 6379);
	//向缓存库中存放数据类型为字符串的数据
	jedis.set(&quot;name&quot;, &quot;马光哲&quot;);
	//从缓存库中获取数据
	String name = jedis.get(&quot;name&quot;);
	System.out.println(&quot;name ==&quot;+name);
	jedis.close();
}

@Test
public void fun2(){
	JedisPoolConfig  jpc = new JedisPoolConfig();
	jpc.setMaxIdle(20);
	jpc.setMinIdle(5);
	JedisPool jp = new JedisPool(jpc, &quot;172.16.31.22&quot;, 6379);
	Jedis jedis = jp.getResource();
	String name = jedis.get(&quot;name&quot;);
	System.out.println(&quot;name ==&quot;+name);
	jedis.expire(&quot;name&quot;, 20);
	
	System.out.println(jedis.ttl(&quot;name&quot;));
	jedis.close();
	jp.close();
}

}

spring 集成

接口

package com.fz.common.component;
public interface RedisUtil {

public String set(String key, String value);
public String get(String key);

public Long del(String key);

public void expire(String key, Integer second);

public Long ttl(String key);

public Long incr(String key);

public Long hset(String key, String hkey, String value);

public String hget(String key, String hkey);

public Long hdel(String key, String hkey);

}

单机版

public class RedisSingleUtil implements RedisUtil {
    private JedisPool jedisPool;
public JedisPool getJedisPool() {
    return jedisPool;
}

public void setJedisPool(JedisPool jedisPool) {
    this.jedisPool = jedisPool;
}

@Override
public String set(String key, String value) {
    Jedis resource = jedisPool.getResource();
    String set = resource.set(key, value);
    resource.close();
    return set;
}</code></pre></div>            <div style="width: 100%; max-width: 996px; margin-top: 2px;">
            <div style="color: inherit; fill: inherit;">
                <div style="display: flex;">

spring 配置文件


            
<bean id="redisSingle" class="com.fz.common.component.impl.RedisSingleUtil">
    <property name="jedisPool" ref="jedisPool"/>
</bean>
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
    <constructor-arg name="host" value="localhost" />
    <constructor-arg name="port" value="6379" />
</bean>
            
                
                    
之后用@AutoWaried就可以注入了

package com.fz.common.component.impl; import com.fz.common.component.RedisUtil; import redis.clients.jedis.JedisCluster; public class RedisClusterUtil implements RedisUtil { private JedisCluster jedisCluster; @Override public String set(String key, String value) { String set = jedisCluster.set(key, value); return set; } @Override public String get(String key) { return jedisCluster.get(key); } @Override public Long del(String key) { return jedisCluster.decr(key); } @Override public void expire(String key, Integer second) { jedisCluster.expire(key, second); } @Override public Long ttl(String key) { return jedisCluster.ttl(key); } @Override public Long incr(String key) { return jedisCluster.incr(key); }

}

java 里使用 1

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