Add IVisitorDao

src/main/java/com/dao/IVisitorDao

@@ -0,0 +1,15 @@
+package com.dao;
+
+import com.entity.Visitor;
+import com.utils.Page;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+import java.util.Map;
+@Respository
+public interface IVisitorDao{
+	List<Visitor>listVisitor(Page page);
+  int getVisitorTotal();
+  void addVisitor(Visitor visitor);
+  List<Visitor>searchByName(Map<String,Object> map);
+}