文件名作为七牛云前缀，以便搜索

cost-service/src/main/java/com/blt/other/module/cost/utils/CostFileUtil.java

@@ -138,8 +138,8 @@ public class CostFileUtil {
         String secretKey = "yagRd-cBOVhkRGGT-o_reMqNVjI8_k7YwoTXkhrm";
         String bucket = "bailun-data-center";
 
-        //默认不指定key的情况下，以文件内容的hash值作为文件名
-        String key = UidUtils.VM_ID + "-" + localFilePath.getName();
+        //七牛云文件名
+        String key = localFilePath.getName() + "-" + UidUtils.VM_ID + "-" + localFilePath.getName();
         Auth auth = Auth.create(accessKey, secretKey);
         String upToken = auth.uploadToken(bucket);
         try {