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/resources/mapper/UserStatsMapper.xml b/src/main/resources/mapper/UserStatsMapper.xml
new file mode 100644
index 0000000..3560a39
--- /dev/null
+++ b/src/main/resources/mapper/UserStatsMapper.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+ "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="com.example.g8backend.mapper.UserStatsMapper">
+ <update id="incrementTraffic">
+ UPDATE user_stats
+ SET total_upload = total_upload + #{deltaUploaded},
+ total_download = total_download + #{deltaDownloaded}
+ WHERE passkey = #{passkey}
+ </update>
+</mapper>
\ No newline at end of file