Spring中RedisTemplate的基本使用浅析

<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-redis</artifactId>
  <version>2.7.3</version>
</dependency>
<!--SpringBoot项目，可以引入这个依赖，这个依赖也是会依赖spring-data-redis的-->
<!--<dependency>-->
<!--    <groupId>org.springframework.boot</groupId>-->
<!--    <artifactId>spring-boot-starter-data-redis</artifactId>-->
<!--    <version>2.7.4</version>-->
<!--</dependency>-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <version>2.7.4</version>
</dependency>

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.core.DefaultTypedTuple;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ZSetOperations;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
@SpringBootTest
public class RedisDemoApplicationTest {
    // 注入RedisTemplate
    @Autowired
    private RedisTemplate redisTemplate;
    // String类型
    @Test
    void testString () {
        redisTemplate.opsForValue().set("name", "javaCoder");
        Object name = redisTemplate.opsForValue().get("name");
        System.out.println(name);
    }
    // Hash类型
    @Test
    public void testHash () {
        redisTemplate.opsForHash().put("hash", "name", "abc");
        redisTemplate.opsForHash().put("hash", "age", 18);
        Map map = redisTemplate.opsForHash().entries("hash");
        System.out.println(map);
    }
    // List类型
    @Test
    public void testList () {
        redisTemplate.opsForList().leftPushAll("list", "zhangsan", "li", 
        "wanger");
        List<String> names = redisTemplate.opsForList().range("list", 0, 
        -1);
        System.out.println(names);
    }
    // Set类型
    @Test
    public void testSet () {
        redisTemplate.opsForSet().add("set", "cat", "dog", "wolf", "pig", 
        "sheep");
        Set<String> set = redisTemplate.opsForSet().members("set");
        System.out.println(set);
    }
    // SortedSet类型
    @Test
    public void testSortedSet () {
        redisTemplate.opsForZSet().add("zset", "cat", 30);
        redisTemplate.opsForZSet().add("zset", "dog", 20);
        redisTemplate.opsForZSet().add("zset", "wolf", 80);
        redisTemplate.opsForZSet().add("zset", "pig", 40);
        Set<String> aClass = redisTemplate.opsForZSet().range("zset", 
        0, -1);
        System.out.println(aClass);
        //使用下面这套写法，也行
        //Set<ZSetOperations.TypedTuple<String>> set = new HashSet<>();
        //set.add(new DefaultTypedTuple<>("cat", 30.0));
        //set.add(new DefaultTypedTuple<>("dog", 20.0));
        //set.add(new DefaultTypedTuple<>("wolf", 80.0));
        //set.add(new DefaultTypedTuple<>("pig", 40.0));
        //redisTemplate.opsForZSet().add("zset", set);
        //Set<String> aClass1 = redisTemplate.opsForZSet().range("zset", 
        //0, -1);
        //System.out.println(aClass1);
    }
}

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<String, Object> redisTemplate(
    RedisConnectionFactory connectionFactory) {
        // 创建 RedisTemplate 对象
        RedisTemplate<String, Object> redisTemplate = 
        new RedisTemplate<>();
        // 设置连接工厂
        redisTemplate.setConnectionFactory(connectionFactory);
        // 设置Key的序列化 - String 序列化 RedisSerializer.string() => 
        // StringRedisSerializer.UTF_8
        redisTemplate.setKeySerializer(RedisSerializer.string());
        redisTemplate.setHashKeySerializer(RedisSerializer.string());
        // 返回
        return redisTemplate;
    }
}

@Autowired
private RedisTemplate<String, String> redisTemplate;

redisTemplate.setValueSerializer(RedisSerializer.json());
// 针对于hash类型的value
redisTemplate.setHashValueSerializer(RedisSerializer.json());