006_ redis_ Jedis quick start

006_redis_jedis Quick start

1、 Create a new one maven project

2、 Introduce dependencies
3、 Establishing a connection
4、 test string
5、 Release resources
The specific code is shown in the figure ：

• Introduce dependencies ：

<?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>jedis-demo</groupId>
    <artifactId>jedis-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <!--jedis rely on -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.7.0</version>
        </dependency>
        <!-- Introduce unit testing -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>5.7.0</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

• Create test class

package com.ym.test;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import redis.clients.jedis.Jedis;

/** * @author: LYM * @description * @version： V1.0 * @date: 2022/4/20 16:57 */
public class JedisTest {
    

    // Introduce dependencies 
    private Jedis jedis;

    /** *  Establishing a connection  */
    @BeforeEach
    void setUp() {
    
        // Establishing a connection 
        jedis=new Jedis("10.223.31.215",6379);
        // Set the password 
        // Select Library 
        jedis.select(0);
    }

    /** *  operation jedis */
    @Test
    void test() {
    
        // In the data 
        String  set = jedis.set("name", " The bees ");
        // Print data 
        System.out.println("name="+set);
        // get data 
        String  name = jedis.get("name");
        System.out.println("name="+name);
    }

    /** *  Release resources  */
    @AfterEach
    void tearDown() {
    
        if(jedis!=null){
    
            jedis.close();
        }
    }
}

• test HashSet type

    @Test
    void testHash() {
    
        // Insert hash data 
        jedis.hset("user:1","name","Jack");
        jedis.hset("user:1","age","21");
        // get data 
        Map<String,String> map = jedis.hgetAll("user:1");
        System.out.println(map);
    }

Jedis Summary of the use steps of ：

• （1） Introduce dependencies
• （2） establish Jedis object , Establishing a connection
• （3） Use Jedis, The method name should be in line with Redis bring into correspondence with
• （4） Release resources

The bee clocked in the next day ~