SpringBoot 操作Redis中的StringRedisTemplate的常用方法

引入依赖

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

配置redis中连接的端口号和IP地址

server.port=8888
spring.redis.host=localhost
spring.redis.port=6379

用法：

package com.aaa;

import lombok.val;
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.*;

@SpringBootTest
class Reis01ApplicationTests {

    @Autowired
    private StringRedisTemplate  stringRedisTemplate;
    //为string类型设置多个值
    @Test
    void contextLoads() {

        ValueOperations<String, String> value = stringRedisTemplate.opsForValue();
        Map<String,String> map=new HashMap<>(16);
        map.put("age","23");
        map.put("id","10");
        value.multiSet(map);

        List<String> strings = value.multiGet(Arrays.asList("age", "id"));
        System.out.println(strings);


    }
    //key的操作
    @Test
    public  void Key(){
        //获取所有的key
        Set<String> keys = stringRedisTemplate.keys("*");
        System.out.println(keys);
        //获取key的类型
        DataType username = stringRedisTemplate.type("username");
        System.out.println(username);

    }
    //list的操作
    @Test
    public  void list(){
    ListOperations<String, String> forList = stringRedisTemplate.opsForList();

        //获取所有的值
        List<String> a = forList.range("a", 0, -1);
        a.forEach(b->{
            System.out.println("b = " + b);
        });
        //获取指定键的长度
        Long a1 = forList.size("a");
        System.out.println(a1);
        //在那个值之前或之后增加值

    }
    @Test
    public  void set(){
        SetOperations<String, String> set = stringRedisTemplate.opsForSet();
        //增加set
        //set.add("sets","zhangsan","lisi","wangwu","1","2");
        //获取set
        //Set<String> sets = set.members("sets");
        //sets.forEach(value->System.out.println(value));
        //判断set中的某个值是否存在
        Boolean member = set.isMember("sets", "lisi");
        System.out.println(member);
        //返回集合的个数
        Long sets = set.size("sets");
        System.out.println(sets);

    }
    //zSet
    @Test
    public void  zSet(){

        ZSetOperations<String, String> forZSet = stringRedisTemplate.opsForZSet();
        //增加值
      //forZSet.add("zsets", "java", 12000);
      //forZSet.add("zsets", "c", 10000);
        //获取zset
        //Set<String> zsets = forZSet.range("zsets", 0, -1);
        //System.out.println(zsets);
        //统计该值在集合中的排名 正序
       // Long rank = forZSet.rank("zsets", "c");
       // System.out.println(rank);
        //统计该值在集合中的排名 倒序
        //Long aLong = forZSet.reverseRank("zsets", "c");
        //System.out.println(aLong);
        //范围内进行排序正序排列

        //Set<String> strings = forZSet.rangeByScore("zsets", 0, 20000);
        //System.out.println(strings);

        //范围内进行排序倒序排列 只获取到值
        //
        //Set<String> sets = forZSet.reverseRangeByScore("zsets", 0, 20000);
        //System.out.println(sets);
        //范围内进行排序获取值和分数
        Set<ZSetOperations.TypedTuple<String>> set = forZSet.rangeByScoreWithScores("zsets", 0, 20000);

        set.forEach(stringTypedTuple -> {
            Double score = stringTypedTuple.getScore();
            String value = stringTypedTuple.getValue();
            System.out.println(score+value);
        });

    }

    //hash
    @Test
    public  void  hash(){
        HashOperations<String, Object, Object> forHash = stringRedisTemplate.opsForHash();

        //设置值
        forHash.put("hashs","user:useranme","zhangsan");
        //获取指定的key中的filed
        List<Object> hashs = forHash.multiGet("hashs", Arrays.asList("user:useranme"));
        hashs.forEach(has->{
            System.out.println(has);
        });

    }

}