实体类
@TableId(value = "projectID",type = IdType.AUTO)
@TableField("projectID")
private Long projectID;
插入的时候就不能直接用BaseMapper接口的Integer insert(T var1);了，需要自己实现
@Options(useGeneratedKeys = true, keyProperty = "projectID", keyColumn = "projectID")
@Insert("insert into "+tableName+"(projectName,creTm,createrID,createrName,finUpdaterID,finUpdateTm,mangerName,mangerID,projectContent,participantIDstr) VALUES(#{projectName},#{creTm},#{createrID},#{createrName},#{finUpdaterID},#{finUpdateTm},#{mangerName},#{mangerID},#{projectContent},#{participantIDstr})")
int addCmpProject(CmpProject project);
需要用以上两个注解实现，如此
Integer insert = projectMapper.addCmpProject(project);
执行之后的project中就已经包含主键了