[1]肖红玉,贺辉,陈红顺. 在线评测教学辅助系统设计[J].计算机技术与发展,2017,27(11):141-145.
　XIAO Hong-yu,HE Hui,CHEN Hong-shun. Design of Online Judge Teaching Assistant System[J].,2017,27(11):141-145.
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 在线评测教学辅助系统设计()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2017年11期
页码:
141-145
栏目:
应用开发研究
出版日期:
2017-11-10

文章信息/Info

Title:
 Design of Online Judge Teaching Assistant System
文章编号:
1673-629X（2017)11-0141-05
作者:
 肖红玉; 贺辉; 陈红顺
 北京师范大学珠海分校 信息技术学院
Author(s):
 XIAO Hong-yu; HE Hui; CHEN Hong-shun
关键词:
 ; 在线评测; 实验教学; 教学辅助系统; 沙盒
Keywords:
 ; online judge; experiment teaching; teaching assistant system; sandbox
分类号:
TP302
文献标志码:
A
摘要:
 为满足程序设计类课程实验教学及程序设计竞赛的需要,对国内外现有的在线评测系统进行研究.以ACM/ICPC竞赛模式为蓝本,采用Python、Mysql、Django 1.8、HTML5、jQuery 1.11、Bootstrap 3.5、Nginx 1.8等技术,设计并实现了基于RabbitMQ高级消息队列和多级安全沙盒的在线评测辅助教学系统.基于Celery并行分布式框架,解决了系统大规模评测的并发性需求,可根据评测负载动态调整评测节点个数.系统具有高容错性,个别评测节点的意外故障不影响系统整体运行.通过Linux用户权限机制、全虚拟化技术、Linux Container(LTX)和setUID实现的多级安全沙盒,保证了评测环境的公平性和安全性.系统主要为日常实验教学代码评测而设计,共有4个角色,与面向竞赛的评测系统相比,增加了教学管理模块、作业管理模块、统计分析管理模块.系统已经成功应用在C/C++/Java/数据结构等课程的日常实验教学中.运行结果表明,该辅助教学系统对促进教学质量、提升学生学习兴趣非常有帮助.
Abstract:
 To meet the requirements of experimental teaching of programming courses as well as programming contest,the existing online judge teaching system at home and abroad are researched. On the basis of ACM/ICPC competition,an online judge assistant system is de-signed and implemented in accordance with the RabbitMQ advanced message queue and multi-level safe sandbox by use of Python, Mysql,Django 1. 8,HTML5,jQuery 1. 11,Bootstrap 3. 5 and Nginx 1. 8. The needs of concurrency in large-scale judge for system are satisfied based on Celery and the number of judging nodes is adjusted dynamically according to system load. The accidental failures of some nodes have no impact on system operation due to its high fault tolerance. The fairness and security in judging environment is guaran-teed by multi-level safe sandbox realized by user permission mechanism of Linux,full virtualization,Linux Container and setUID. The system is mainly designed for judging code in experiment teaching,with four roles,and in comparison with judging system to competi-tion,adds the three modules of teaching management,schoolwork management and statistic analysis. It has been successfully applied in daily experiment teaching like C,C++,Java and data structure. The operation shows that it is very helpful to promoting teaching quality and enhancing students’ learning interest.

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更新日期/Last Update: 2017-12-26