完成对announce请求的处理，初步完成上传量和下载量的统计
Change-Id: Ief942d0364a11d945a10a5a58d7652a054bedaa4
diff --git a/src/main/java/com/example/g8backend/entity/UserStats.java b/src/main/java/com/example/g8backend/entity/UserStats.java
new file mode 100644
index 0000000..64225ee
--- /dev/null
+++ b/src/main/java/com/example/g8backend/entity/UserStats.java
@@ -0,0 +1,18 @@
+package com.example.g8backend.entity;
+
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("user_stats")
+public class UserStats {
+ @TableId
+ private Long userId;
+ private String passkey;
+ private double total_upload;
+ private double total_download;
+ private LocalDateTime last_update_time;
+}