redis入门

在redis目录下打开cmd，执行

redis-server.exe redis.windows.conf

再在cmd里运行

redis-cli

spring 整合 redis
maven引入依赖

        
            org.springframework.boot
            spring-boot-starter-data-redis
        

application.yml配置文件

spring:
  redis:
    database: 0
    host: localhost
    port: 6379

config包下

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate template = new RedisTemplate<>();
        template.setConnectionFactory(factory);

        // 设置key的序列化方式
        template.setKeySerializer(RedisSerializer.string());
        // 设置value的序列化方式
        template.setValueSerializer(RedisSerializer.json());
        // 设置hash的key的序列化方式
        template.setHashKeySerializer(RedisSerializer.string());
        // 设置hash的value的序列化方式
        template.setHashValueSerializer(RedisSerializer.json());

        template.afterPropertiesSet();
        return template;
    }
}

测试常用的数据结构, string, hash, list, set, zset

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.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class RedisTest {

    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void testStrings(){
        String redisKey = "test:count";

        redisTemplate.opsForValue().set(redisKey, 1);
        System.out.println(redisTemplate.opsForValue().get(redisKey));
        System.out.println(redisTemplate.opsForValue().increment(redisKey));
        System.out.println(redisTemplate.opsForValue().decrement(redisKey));

    }

 	@Test
    public void testHashes(){
        String key = "test:student";

        redisTemplate.opsForHash().put(key, "id", 1);
        redisTemplate.opsForHash().put(key, "username", "zhangsan");
        System.out.println(redisTemplate.opsForHash().get(key, "id"));
        System.out.println(redisTemplate.opsForHash().get(key, "username"));
    }

    @Test
    public void testLists(){
        String key = "test:ids";

        redisTemplate.opsForList().leftPush(key, 101);
        redisTemplate.opsForList().leftPush(key, 102);
        redisTemplate.opsForList().rightPush(key,103);

        System.out.println(redisTemplate.opsForList().size(key));
        System.out.println(redisTemplate.opsForList().index(key, 1));
        System.out.println(redisTemplate.opsForList().range(key,1, 2));

        System.out.println(redisTemplate.opsForList().leftPop(key));
        System.out.println(redisTemplate.opsForList().rightPop(key));
    }
	@Test
    public void testSets(){
        String key = "test:people";
        redisTemplate.opsForSet().add(key, "van", "gogh", "judy", "tony");

        System.out.println(redisTemplate.opsForSet().size(key));
        //随机弹出一个元素
        System.out.println(redisTemplate.opsForSet().pop(key));
        System.out.println(redisTemplate.opsForSet().members(key));
    }

    @Test
    public void testZset(){
        String key = "test:score";

        redisTemplate.opsForZSet().add(key, "zs", 10);
        redisTemplate.opsForZSet().add(key, "ls", 30);
        redisTemplate.opsForZSet().add(key, "ww", 45);
        redisTemplate.opsForZSet().add(key, "ll", 67);
        redisTemplate.opsForZSet().add(key, "az", 88);
        
		// 可以绑定 key，调用相应方法时不要参数 key
        BoundZSetOperations operations = redisTemplate.boundZSetOps(key);
        operations.add("yf", 56);

        System.out.println(redisTemplate.opsForZSet().zCard(key));
        System.out.println(redisTemplate.opsForZSet().score(key, "ls"));
        //默认从小到大, 序号从 0 开始
        System.out.println(redisTemplate.opsForZSet().rank(key, "ls"));
        //从大到小
        System.out.println(redisTemplate.opsForZSet().reverseRank(key, "ls"));

        System.out.println(redisTemplate.opsForZSet().range(key, 2, 4));
    }


}