解析url

src/main/java/com/lovenav/dao/NavDao.java

@@ -1,11 +1,13 @@
 package com.lovenav.dao;
 
 import com.lovenav.entity.Nav;
+import org.apache.ibatis.annotations.Mapper;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
 
 @Repository
+@Mapper
 public interface NavDao {
     int deleteByNavName(String navName);