精简util模块，ReturenResponse重构

server/src/main/java/cn/keking/config/SchedulerCleanConfig.java

@@ -0,0 +1,37 @@
+package cn.keking.config;
+
+import cn.keking.service.cache.CacheService;
+import cn.keking.utils.FileUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+/**
+ * @auther: chenjh
+ * @since: 2019/6/11 7:45
+ */
+@Component
+@ConditionalOnExpression("'${cache.clean.enabled:false}'.equals('true')")
+public class SchedulerCleanConfig {
+
+    private final Logger logger = LoggerFactory.getLogger(SchedulerCleanConfig.class);
+
+    private final CacheService cacheService;
+
+    public SchedulerCleanConfig(CacheService cacheService) {
+        this.cacheService = cacheService;
+    }
+
+    private final String fileDir = ConfigConstants.getFileDir();
+
+    //默认每晚3点执行一次
+    @Scheduled(cron = "${cache.clean.cron:0 0 3 * * ?}")
+    public void clean() {
+        logger.info("Cache clean start");
+        cacheService.cleanCache();
+        FileUtils.deleteDirectory(fileDir);
+        logger.info("Cache clean end");
+    }
+}