Jedis操作

1.新建maven工程

2.加入依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>com.atguigu.jedisdemo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.2.0</version>
        </dependency>
    </dependencies>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

测试java是否与redis连接，以及一些数据操作

需要启动本地redis服务

package com.atguigu.jedis;

import org.junit.Test;
import redis.clients.jedis.Jedis;

import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
 * 测试与redis连接是否成功
 */
public class JedisDemo1 {
    public static void main(String[] args) {
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        //测试连接是否成功
        String ping = jedis.ping();
        //输出PONG则连接成功
        System.out.println(ping);
    }

    /**
     * 操作key
     */
    @Test
    public void test1(){
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        Set<String> keys = jedis.keys("*");
        Iterator<String> iterator = keys.iterator();
        while (iterator.hasNext()){
            System.out.println("-----------");
            System.out.println(iterator.next());
        }
    }

    /**
     * 清空库
     */
    @Test
    public void test2(){
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        jedis.flushDB();
    }
    /**
     * set键值对
     */
    @Test
    public void test3(){
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        jedis.set("name1","jack");
        jedis.set("name2","lucy");
        jedis.set("name3","luna");
    }
    /**
     * 批量设置键值对
     */
    @Test
    public void test4(){
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        jedis.mset("k1","v1","k2","v2","k3","v3");
        List<String> mget = jedis.mget("k1", "k2", "k3");
        Iterator<String> iterator = mget.iterator();
        while (iterator.hasNext()){
            System.out.println(iterator.next());
        }
    }
    /**
     * 操作list
     */
    @Test
    public void test5(){
        //创建redis连接
        Jedis jedis=new Jedis("127.0.0.1",6379);
        jedis.mset("k1","v1","k2","v2","k3","v3");
        List<String> mget = jedis.mget("k1", "k2", "k3");
        Iterator<String> iterator = mget.iterator();
        while (iterator.hasNext()){
            System.out.println(iterator.next());
        }
    }
}