feat: RedisUtil 추가 (#4)

src/main/java/com/project/mapdagu/util/RedisUtil.java

@@ -0,0 +1,31 @@
+package com.project.mapdagu.util;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
+import org.springframework.stereotype.Component;
+
+import java.util.concurrent.TimeUnit;
+
+@Component
+@RequiredArgsConstructor
+public class RedisUtil {
+    private final RedisTemplate<String, Object> redisTemplate;
+
+    public void set(String key, Object o, Integer minutes) {
+        redisTemplate.setValueSerializer(new Jackson2JsonRedisSerializer(o.getClass()));
+        redisTemplate.opsForValue().set(key, o, minutes, TimeUnit.MINUTES);
+    }
+
+    public Object get(String key) {
+        return redisTemplate.opsForValue().get(key);
+    }
+
+    public boolean delete(String key) {
+        return redisTemplate.delete(key);
+    }
+
+    public boolean hasKey(String key) {
+        return redisTemplate.hasKey(key);
+    }
+}