定时任务相关修改；添加schedule_task数据库表；BusinessErrorCode扩充；QCloudCosUtils调整（暂存）

bookshelfplus/src/main/java/plus/bookshelf/Dao/Mapper/FileDOMapper.java

@@ -59,4 +59,11 @@ public interface FileDOMapper {
      * @return
      */
     FileDO[] selectAll();
+
+    /**
+     * 获取上一次插入的主键Id
+     *
+     * @return
+     */
+    int getLastInsertId();
 }

bookshelfplus/src/main/java/plus/bookshelf/Dao/Mapper/ScheduleTaskDOMapper.java

@@ -0,0 +1,70 @@
+package plus.bookshelf.Dao.Mapper;
+
+import org.springframework.stereotype.Repository;
+import plus.bookshelf.Dao.DO.ScheduleTaskDO;
+
+@Repository // 添加这个注解，Autowired的时候idea就不会报错了
+public interface ScheduleTaskDOMapper {
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    int deleteByPrimaryKey(Integer id);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    int insert(ScheduleTaskDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    int insertSelective(ScheduleTaskDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    ScheduleTaskDO selectByPrimaryKey(Integer id);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    int updateByPrimaryKeySelective(ScheduleTaskDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table schedule_task
+     *
+     * @mbg.generated
+     */
+    int updateByPrimaryKey(ScheduleTaskDO record);
+
+    /**
+     * 从数据库中取出需要处理的任务
+     *
+     * @return
+     */
+    ScheduleTaskDO[] selectTodoTask();
+
+    /**
+     * 通过 GUID 获取任务
+     *
+     * @param taskGuid
+     * @return
+     */
+    ScheduleTaskDO selectByGuid(String taskGuid);
+}