redis在idea中的应用

2023-11-20

导入的依赖

 <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

 

package com.sky.test;


import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.core.*;

import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
 * @author Hua
 * @version 1.0
 * @DATE 2023-11-20 15:09:48
 */
@SpringBootTest
public class SpringDataRedisTest {

    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void test(){
        System.out.println(redisTemplate);
        ValueOperations valueObjects = redisTemplate.opsForValue();
        HashOperations hashOperations = redisTemplate.opsForHash();
        ListOperations listOperations = redisTemplate.opsForList();
        SetOperations setOperations = redisTemplate.opsForSet();
        ZSetOperations zSetOperations = redisTemplate.opsForZSet();
    }

    /**
     * 操作字符串的数据
     */
    @Test
    public void testString(){
        // set get setex setnx
        redisTemplate.opsForValue().set("city","深圳");
        String city = (String)redisTemplate.opsForValue().get("city");
        System.out.println("city = " + city);
        redisTemplate.opsForValue().set("code","856485",3, TimeUnit.MINUTES);
        redisTemplate.opsForValue().setIfAbsent("lock","1");
        redisTemplate.opsForValue().setIfAbsent("lock","2");
    }

    /**
     * 操作哈希类型的数据
     */
    @Test
    public void testHash(){
        // hset hget hdel hkeys hvals
        HashOperations hashOperations = redisTemplate.opsForHash();
        hashOperations.put("100","name","tom");
        hashOperations.put("100","age","22");

        String name = (String)hashOperations.get("100", "name");
        System.out.println("name = " + name);
        Set keys = hashOperations.keys("100");
        System.out.println("keys = " + keys);
        List values = hashOperations.values("100");
        System.out.println("values = " + values);
        hashOperations.delete("100","age");
    }

    /**
     * 操作列表类型的数据
     */
    @Test
    public void testList(){
        //lpush lrange rpop llen
        ListOperations listOperations = redisTemplate.opsForList();
        listOperations.leftPushAll("mylist","a","b","c");
        listOperations.leftPush("mylist","d");

        List mylist = listOperations.range("mylist",0,-1);
        System.out.println("mylist = " + mylist);

        listOperations.rightPop("mylist");
        Long mylist1 = listOperations.size("mylist");
        System.out.println("mylist1 = " + mylist1);
    }

    /**
     * 操作集合类型的数据
     */
    @Test
    public void testSet(){
        //sadd smembers scard sinter sunion srem
        SetOperations setOperations = redisTemplate.opsForSet();
        setOperations.add("set1","a","b","c","d");
        setOperations.add("set2","a","b","c","d");

        Set set1 = setOperations.members("set1");
        System.out.println("set1 = " + set1);

        Long size = setOperations.size("set1");
        System.out.println("size = " + size);

        Set intersect = setOperations.intersect("set1", "set2");
        System.out.println("intersect = " + intersect);

        Set union = setOperations.union("set1", "set2");
        System.out.println("union = " + union);

        setOperations.remove("set1","a","b");


    }

    /**
     * 操作有序集合类型的数据
     */
    @Test
    public void testZSet(){
        //zadd zrange zincrby zrem
        ZSetOperations zSetOperations = redisTemplate.opsForZSet();
        zSetOperations.add("zset1","a",10);
        zSetOperations.add("zset1","b",12);
        zSetOperations.add("zset1","c",9);
        Set zset1 = zSetOperations.range("zset1", 0, -1);
        System.out.println("zset1 = " + zset1);

        zSetOperations.incrementScore("zset","c",10);

        zSetOperations.remove("zset1","a","b");
    }

    /**
     * 通用命令操作
     */
    @Test
    public void testCommon(){
        //keys exists type del
        Set keys = redisTemplate.keys("*");
        System.out.println("keys = " + keys);

        Boolean name = redisTemplate.hasKey("name");
        Boolean set1 = redisTemplate.hasKey("set1");

        for (Object key : keys) {
            DataType type = redisTemplate.type(key);
            System.out.println("type = " + type);
        }

        redisTemplate.delete("mylist");


    }

}