Redis can lead a horse of self-cultivation by Jedis

I. First, what is Jedis?

Jedis = Java + Redis; // Yes, is this ^ _ ^

Two .Jedis and Redis origin

1.Redis not only use the commands to operate the now largely mainstream languages have client support, such as java, C, C #, C ++, PHP, Node.js, Go and other languages.

In a column in the official website of some of the Java client, there are Jedis, Redisson, Jredis, JDBC-Redis, such as which official recommended Jedis and Redisson. In the enterprise with the most is the Jedis, Here's to the market with the most Jedis to understand Kazakhstan:

2. Jedis also hosted on github, and hosting address: https: //github.com/xetorthio/jedis

Note: Yes, you see that it wants

III. Only know Java, so Java to connect with what Redis

1. First you need to download jar package

The two jar package is a must, you can download well in advance, still project into java, then introduced

2. Write a test class

package com.yinxin.Jedis;

import redis.clients.jedis.Jedis;

public class JedisTest {
	public static void main(String[] args) {
		//1.设置ip地址和端口
		Jedis jedis=new Jedis("172.16.10.118",6379);
		//添加数据
		jedis.set("name","zhangsan");
		//获取数据
		String name=jedis.get("name");
		System.out.println("获取name属性的值："+name);
		//释放资源
		jedis.close();
		
	}

}

If you perform will appear the following results:

① thrown connection timeout, there is no reason to close the firewall port 6379 on the remote server

② linux firewall must be set, so then you need to turn off the firewall, and let it take effect permanently saved

vim /etc/sysconfig/iptables

Add port 6379

service iptables restart

③ turn off the firewall

systemctl stop firewalld.service

After enough off the firewall, the test procedure can be used, as shown:

Java programs and data acquired as a client

3. The connection pool

Code section:

package com.yinxin.Jedis;

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 testJedisPool(){
		//获取连接池配置对象，设置配置项
		JedisPoolConfig config=new JedisPoolConfig();
		//最大连接数
		config.setMaxTotal(30);
		//最大空闲连接数
		config.setMaxIdle(10);
		
		JedisPool jedisPool=new JedisPool(config,"172.16.10.111",6379);
		
		//获得核心对象
		Jedis jedis=null;
		jedis=jedisPool.getResource();
		
		//设置数据
		jedis.set("name","yinxin");
		//获取数据
		String name=jedis.get("name");
		System.out.println("name为["+name+"]");
		if(jedis!=null){
			jedis.close();
		}
		//虚拟机关闭时，释放pool资源
		if(jedisPool!=null){
			jedisPool.close();
		}
		
		
	}

}

Value obtained from the connection pool as:

Redis can lead a horse of self-cultivation by Jedis

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