diff --git a/src/main/java/im/zhaojun/zfile/config/CacheConfig.java b/src/main/java/im/zhaojun/zfile/config/CacheConfig.java
deleted file mode 100644
index dccea69..0000000
--- a/src/main/java/im/zhaojun/zfile/config/CacheConfig.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package im.zhaojun.zfile.config;
-
-import im.zhaojun.zfile.model.dto.FileItemDTO;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-
-import java.util.List;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-
-/**
- * @author zhaojun
- */
-@Configuration
-public class CacheConfig {
-
-    @Bean
-    public ConcurrentMap<String, List<FileItemDTO>> concurrentMapCache() {
-        return new ConcurrentHashMap<>();
-    }
-}