实体层，dao层基本创建

src/main/java/com/lovenav/mapper/UserMetaDao.java

@@ -0,0 +1,19 @@
+package com.lovenav.mapper;
+
+import com.lovenav.entity.UserMeta;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface UserMetaDao {
+    int deleteByPrimaryKey(Long id);
+
+    int insert(UserMeta record);
+
+    int insertSelective(UserMeta record);
+
+    UserMeta selectByPrimaryKey(Long id);
+
+    int updateByPrimaryKeySelective(UserMeta record);
+
+    int updateByPrimaryKey(UserMeta record);
+}