修改了类名以及添加了bean和dao接口类

demo/src/test/java/com/example/demo/Dao/transationMapping.java

@@ -0,0 +1,7 @@
+package com.example.demo.Dao;
+
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface transationMapping {
+}

demo/src/test/java/com/example/demo/Dao/usageDateMapping.java

@@ -0,0 +1,6 @@
+package com.example.demo.Dao;
+
+import org.apache.ibatis.annotations.Mapper;
+@Mapper
+public interface usageDateMapping {
+}