从"Blog"仓库中分离出来

src/main/java/cn/celess/blog/mapper/VisitorMapper.java

@@ -0,0 +1,24 @@
+package cn.celess.blog.mapper;
+
+import cn.celess.blog.entity.Visitor;
+import org.apache.ibatis.annotations.Mapper;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+/**
+ * @Author: 小海
+ * @Date： 2019/07/03 00:23
+ * @Description：
+ */
+@Repository
+@Mapper
+public interface VisitorMapper {
+    int insert(Visitor visitor);
+
+    int delete(long id);
+
+    List<Visitor> findAll();
+
+    long count();
+}