1鸯乃、JAVA客戶端Jedis

Jedis：一款java 操作redis數(shù)據(jù)庫的工具
使用步驟：
1、下載jedis相關(guān)的jar包
jedis.jar
commons-pool.jar
2跋涣、使用

jedis入門

2缨睡、jedis操作String

各種操作總結(jié)

過期時(shí)間，激活碼存儲(chǔ)過期時(shí)間

string

3陈辱、jedis操作hash

hash

獲取所有鍵值對

4奖年、jedis操作列表list

list.png

5、jedis操作set 和sortedset

set

sortedset

package dayRedis;

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

import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * @author duyanyan
 * @date 2022/6/5 15:27
 * Jedis的測試類
 */
public class JedisTest {
    /*
    快速入門
     */
    @Test
    public void test1(){
        //獲取連接
       Jedis jedis =  new Jedis("localhost",6379);
       //操作
        jedis.set("username","zhangsan");
        //關(guān)閉連接
        jedis.close();

    }

    @Test
    public void test2(){
        //獲取連接
        Jedis jedis =  new Jedis("localhost",6379);
        //操作
        jedis.set("username","zhangsan");
        String username = jedis.get("username");
        System.out.println("string獲扰嫣啊：" + username);
        //將active 陋守，hehe鍵值對存入redis.并且20s后自動(dòng)刪除該鍵值對
        jedis.setex("active",20,"hehe");
        //關(guān)閉連接
        jedis.close();
 System.out.println("-------------------------");
    }

    @Test
    public void test3(){
        //獲取連接
        Jedis jedis =  new Jedis("localhost",6379);
        //存儲(chǔ)hash
        jedis.hset("user","name","lisa");
        jedis.hset("user","age","18");
        jedis.hset("user","gender","male");

       //獲取hash
        String name = jedis.hget("user", "name");
        System.out.println("hash獲取:" + name);

        //獲取hash的所有map中的集合
        Map<String, String> user = jedis.hgetAll("user");
        Set<String> strings = user.keySet();
        for (String key : strings) {
           //獲取value
            String value = user.get(key);
            System.out.println(key + ":" + value);
        }
        //關(guān)閉連接
        jedis.close();
 System.out.println("-------------------------");
    }

    @Test
    public void test4(){
        //獲取連接
        Jedis jedis =  new Jedis("localhost",6379);
        //操作list
        jedis.lpush("mylist","a","b","c");  //從左邊存
        jedis.rpush("mylist","a","b","c"); //從右邊村

        //獲取范圍
        List<String> mylist = jedis.lrange("mylist", 0, -1);
        System.out.println("list的輸出：" + mylist);

        //彈出
        String mylist1 = jedis.lpop("mylist");
        System.out.println("mylist從左邊彈出的元素：" + mylist1);

        String mylist2 = jedis.rpop("mylist");
        System.out.println("mylist從右邊彈出的元素：" + mylist2);

        List<String> mylistall = jedis.lrange("mylist", 0, -1);
        System.out.println("list最后的輸出：" + mylistall);
        //關(guān)閉連接
        jedis.close();

    }

}

輸出:
string獲日鸸蟆：zhangsan
-------------------------
hash獲取:lisa
name:lisa
gender:male
age:18
-------------------------
list的輸出：[c, b, a, a, b, c]
mylist從左邊彈出的元素：c
mylist從右邊彈出的元素：c
list最后的輸出：[b, a, a, b]