Initial project

src/main/java/com/imyeyu/spring/mapper/BaseMapper.java

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+package com.imyeyu.spring.mapper;
+
+import com.imyeyu.spring.util.SQLProvider;
+import org.apache.ibatis.annotations.DeleteProvider;
+import org.apache.ibatis.annotations.InsertProvider;
+import org.apache.ibatis.annotations.Options;
+import org.apache.ibatis.annotations.SelectProvider;
+import org.apache.ibatis.annotations.UpdateProvider;
+
+import java.util.List;
+
+/**
+ * 基本 SQL 映射，子接口可以不实现
+ *
+ * @author 夜雨
+ * @version 2021-07-16 09:40
+ */
+public interface BaseMapper<T, P> {
+
+	/**
+	 * 排序方式
+	 *
+	 * @author 夜雨
+	 * @version 2023-09-05 22:14
+	 */
+	enum OrderType {
+
+		ASC,
+
+		DESC
+	}
+
+	static final String NOT_DELETE = " AND `deleted_at` IS NULL ";
+
+	static final String LIMIT_1 = " LIMIT 1";
+
+	static final String UNIX_TIME = " FLOOR(UNIX_TIMESTAMP(NOW(3)) * 1000) ";
+
+	static final String PAGE = NOT_DELETE + " LIMIT #{offset}, #{limit}";
+
+	/**
+	 * 统计数据量
+	 *
+	 * @return 数据量
+	 */
+	long count();
+
+	/**
+	 * 获取部分数据
+	 *
+	 * @param offset 偏移
+	 * @param limit  数据量
+	 * @return 数据列表
+	 */
+	List<T> list(long offset, int limit);
+
+	/**
+	 * 创建数据。默认自增主键为 id，如需修改请重写此接口
+	 *
+	 * @param t 数据对象
+	 */
+	@InsertProvider(type = SQLProvider.class, method = "insert")
+	@Options(useGeneratedKeys = true, keyProperty = "id")
+	void insert(T t);
+
+	/**
+	 * 根据 ID 获取对象
+	 *
+	 * @param id 索引
+	 * @return 数据对象
+	 */
+	@SelectProvider(type = SQLProvider.class, method = "select")
+	T select(P id);
+
+	@SelectProvider(type = SQLProvider.class, method = "selectByExample")
+	T selectByExample(T t);
+
+	@SelectProvider(type = SQLProvider.class, method = "selectAllByExample")
+	List<T> selectAllByExample(T t);
+
+	/**
+	 * 修改数据
+	 *
+	 * @param t 数据对象
+	 */
+	@UpdateProvider(type = SQLProvider.class, method = "update")
+	void update(T t);
+
+	/**
+	 * 软删除
+	 *
+	 * @param id 索引
+	 */
+	@UpdateProvider(type = SQLProvider.class, method = "delete")
+	void delete(P id);
+
+	/**
+	 * 销毁（物理删除）
+	 *
+	 * @param id 索引
+	 */
+	@DeleteProvider(type = SQLProvider.class, method = "destroy")
+	void destroy(P id);
+}