Redis实战--SpringBoot中对Redis数据类型set的基本操作示例

echo编辑整理

该文章是接上一篇文章《Redis整合SpringBoot示例》的后续，操作用例代码比较多，这里展示核心代码所占篇幅很多，所以单独抽出来写

set类型在SpringBoot中的使用代码如下

package com.example.echo.redis;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;

/**
 * @author XLecho
 * Date 2019/11/9 0009
 * Time 13:36
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class RedisTypeSetUseTest {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    /**
     * 在set中添加a b c
     */
    @Test
    public void testSaddSet() {
        redisTemplate.opsForSet().add("mySet", "d", "e", "f");
        System.out.println(redisTemplate.opsForSet().members("mySet"));
    }

    /**
     * 获取set的长度
     */
    @Test
    public void testScardSet() {
        System.out.println(redisTemplate.opsForSet().size("mySet"));
    }

    /**
     * 随机获取set集合中的元素
     */
    @Test
    public void testSrandmemberSet() {
        System.out.println(redisTemplate.opsForSet().randomMember("mySet"));
        System.out.println(redisTemplate.opsForSet().members("mySet"));
    }

    /**
     * 随机弹出set集合中的元素，弹出的元素会在set集合中删除
     */
    @Test
    public void testSpopSet() {
        System.out.println(redisTemplate.opsForSet().pop("mySet"));
        System.out.println(redisTemplate.opsForSet().members("mySet"));
    }

    /**
     * 移除set集合中指定元素
     */
    @Test
    public void testSremSet() {
        redisTemplate.opsForSet().remove("mySet", "b");
        System.out.println(redisTemplate.opsForSet().members("mySet"));
    }

    /**
     * 查看元素c是否存在set集合中,存在返回true，不存在返回false
     */
    @Test
    public void testSismemberSet() {
        System.out.println(redisTemplate.opsForSet().isMember("mySet", "c"));
    }

    /**
     * 获取两个集合的差集
     */
    @Test
    public void testSdiffSet() {
        redisTemplate.opsForSet().add("mySet1","a", "b", "c", "d", "e");
        redisTemplate.opsForSet().add("mySet2", "c", "d", "e", "f", "g");
        System.out.println(redisTemplate.opsForSet().difference("mySet1", "mySet2"));
    }

    /**
     * 获取两个集合的交集
     */
    @Test
    public void testSinterSet() {
        redisTemplate.opsForSet().add("mySet1","a", "b", "c", "d", "e");
        redisTemplate.opsForSet().add("mySet2", "c", "d", "e", "f", "g");
        System.out.println(redisTemplate.opsForSet().intersect("mySet1", "mySet2"));
    }

    /**
     * 获取两个集合的并集
     */
    @Test
    public void testSunionSet() {
        redisTemplate.opsForSet().add("mySet1","a", "b", "c", "d", "e");
        redisTemplate.opsForSet().add("mySet2", "c", "d", "e", "f", "g");
        System.out.println(redisTemplate.opsForSet().union("mySet1", "mySet2"));
    }

}

项目源码地址：https://coding.net/u/xlsorry/p/SpringBootRedis/git