fix: 交友裂变-获取素材接口，读取redis报错修复

launch-admin/src/main/java/com/webflux/launchadmin/mysql/controller/planNew/PlanNewCommonOutController.java

@@ -26,6 +26,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.r2dbc.core.R2dbcEntityTemplate;
 import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.data.relational.core.query.Criteria;
 import org.springframework.data.relational.core.query.Query;
 import org.springframework.scheduling.annotation.Scheduled;
@@ -457,14 +458,16 @@ public class PlanNewCommonOutController {
      * 获取音频
      */
     private Mono<Audio> getAudio(Long id) {
-        if (Objects.isNull(id)) {
+        if (Objects.isNull(id) || id <= 0) {
             return Mono.just(getAudio());
         }
         // 优先读缓存
-        Mono<Object> obj = reactiveRedisTemplate.opsForValue().get(RedisKey.FISSION_AUDIO + id);
+        Mono<Object> obj = reactiveRedisTemplate.opsForValue().get(RedisKey.FISSION_AUDIO + id)
+                .switchIfEmpty(Mono.just(" "));
         return obj.flatMap(val -> {
-            if (val != null) {
-                return Mono.just(JSON.parseObject(val.toString(), Audio.class));
+            if (val != null && StrUtil.isNotBlank(val.toString())) {
+                Audio audio = JSON.parseObject(val.toString(), Audio.class);
+                return Mono.just(audio);
             } else {
                 return template.selectOne(Query.query(Criteria.where("id").is(id)), Audio.class)
                         .switchIfEmpty(Mono.error(new BaseException(StrUtil.format("通过计划retAudioId：{}查询音频为空", id))))