init

src/main/java/xyz/fortern/dao/NewsMapper.java

@@ -0,0 +1,35 @@
+package xyz.fortern.dao;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.One;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Result;
+import org.apache.ibatis.annotations.Results;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.type.JdbcType;
+import xyz.fortern.pojo.News;
+
+import java.util.List;
+
+@Mapper
+public interface NewsMapper extends BaseMapper<News> {
+	//1. 分页查询动态
+	
+	/**
+	 * 分页查询动态
+	 *
+	 * @param offset 偏移量
+	 * @param rows   查询数量
+	 */
+	@Select("select * from news limit #{offset}, #{rows}")
+	@Results({
+			@Result(column = "id", property = "id", jdbcType = JdbcType.INTEGER, id = true),
+			@Result(column = "uid", property = "uid", jdbcType = JdbcType.INTEGER),
+			@Result(column = "uid", property = "simpleUser", one = @One(select = "xyz.fortern.dao.UserMapper.selectSimpleInfoById")),
+			@Result(column = "aid", property = "aid", jdbcType = JdbcType.INTEGER),
+			@Result(column = "aid", property = "SimpleArticle", one = @One(select = "xyz.fortern.dao.ArticleMapper.selectSimpleInfoById")),
+			@Result(column = "time", property = "time", jdbcType = JdbcType.DATE),
+	})
+	List<News> getNews(@Param("offset") int offset, @Param("rows") int rows);
+}