导航，附件，拦截器

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

@@ -0,0 +1,25 @@
+package com.lovenav.dao;
+
+import com.lovenav.entity.Nav;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface NavDao {
+    int deleteByNavName(String navName);
+
+    int insert(Nav record);
+
+    int insertSelective(Nav record);
+
+    Nav selectByPrimaryKey(Integer id);
+
+    int updateByName(Nav record);
+
+    int updateByPrimaryKey(Nav record);
+
+    Nav selectAlreadyExist(Nav nav);
+
+    List<Nav> selectAllNav();
+}

src/main/java/com/lovenav/entity/Nav.java

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+package com.lovenav.entity;
+
+import java.io.Serializable;
+import lombok.Data;
+
+/**
+ * ln_nav
+ */
+@Data
+public class Nav implements Serializable {
+    /**
+     * id
+     */
+    private Integer id;
+
+    /**
+     * 导航名称
+     */
+    private String navName;
+
+    /**
+     * 跳转地址
+     */
+    private String url;
+
+    /**
+     * 状态
+     */
+    private Integer status;
+
+    private static final long serialVersionUID = 1L;
+}