基于工作流的土地审批系统的研究与实现

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武汉大学硕士毕业论文

基于工作流的土地审批系统的研究与实现

摘要

随着社会的发展和政府机构改革的深入，各个政府职能部门之间的协同工作显得越来越

重要，电子政务的复杂度日益增加，原有的办公模式己经不能适应日益增长的事务处理、信

息共享等方面的要求。为了提高政府的工作效率、增强政府决策能力，更好地为公众服务，

必须充分利用现代化的信息技术，优化政府流程，构建高效的电子政务系统。

工作流管理技术作为一种过程管理的核心技术，不仅强调某个环节的完成情况，而且还

要求从整个流程的角度来看待该环节的义务管理过程，把完成最终的服务管理目标作为流程

管理的目标。工作流技术还可以将信任服务、授权服务和公文流转、信息共享等业务流程有机

紧密地结合在一起，构成安全的工作流业务系统，为不同业务系统集成提供实现的技术手段。

实际上，将工作流技术引入电子政务系统，实现流程、业务和管理职责、管理岗位的标准化，

将非常有利于提高政务流程的重组和规范程度，明确审批和办理流程中的责权利，真正达到

实施电子政务系统工程中需要满足的一个目的:理顺政府信息、规范政务流程。

论文首先对分布式工作流技术理论和国内外相关科研成果进行研究，同时将当前主流的

几种工作流技术进行分析比较，探讨了分布式工作流的实现技术，并比较几种分布式工作流

的技术，提出了 J2EE 工作流引擎的体系结构。然后在详细分析本课题的研究项目的基础上提

出了基于多任务域结构的分布式工作流系统解决方案，对系统架构、运行策略、通信机制和

数据存储策略等进行了深入的分析。之后，本文设计并实现了分布式工作流引擎原型 DWF-

Engine 的核心部分。设计了基于“NEA”思想的“节点-事件-动作”模型，使引擎执行的灵

活性大为增强，同时还设计了任务的柔性分配模型。引擎间的通信采用基于 JMS 的消息机制，

引擎数据的持久化采用了基于对象关系映射的方法。论文还针对引擎原型实现过程中涉及的

引擎任务管理、数据持久化管理和引擎部署进行深入的研究。最后是对整个项目的实现，提

出了工作流技术的软件构架和整个模型的实现的技术方案。最后是整个系统的性能测评和开

发效率的评估，可以得出本文所研究基于 J2EE 的分布式工作流引擎 DWF-Engine 与其他同类

引擎相比，具有更好的灵活性和可扩展性。

关键字：分布式工作流引擎；工作流管理系统；J2EE

武汉大学硕士毕业论文

Design and Implementation of Land Examine and Approve System

based on Workflow

Abstract

With the development of society and the deepening of the reform in government departments,

the more important the cooperation among different function departments becomes and the more

complex E-government becomes, thus the previous office affairs-handling pattern can no longer

meet the requirements of enlarging office affairs and information-sharing. Therefore, modern

science and technology must be utilized to optimize the government workflow by construct highly

efficient E-government system so as to enhance the governments' policy-making capability and to

better the service for the public.

Workflow management technology is one of the core technology for the process management,

which emphasizes not only the accomplishment status of every single step, but also emphasizes that

the final service management target should be taken as the flow management target by treating

the step-by-step management process in terms of the perspective of the whole workflow

process.Workflow technology makes for safe workflow system by incorporating credit service,

authorization service, circulation of office documents and information-sharing into an organic and

closely-related system, so that it provides critical technology for the realization of integrated

government business system. In fact, the application of workflow technology into E-government

system will realize the idea of standardization of management responsibilities and its respective

management posts, which is extremely beneficial for the enhancement of the reshuffling of the

government affairs-handling flow and for the standardization degree of the handling, if it is

introduced and applied into E-government system; it is beneficial for the clear definition of the duty,

right and benefit in the process of examination and approval of government documents and

document processing, which is one of the purpose for the application of theE-government system.

In addition, it serves to straight up and streamlines the government information and standardizes the

government business flow. With the development of technology, WFMC workflow software

stands out conspicuously in the application of modern office affairs handling in the sense that it

武汉大学硕士毕业论文

can realize not only the atomization of the workflow, enabling the switch of the manual handling

style of the incoming and outgoing documents into the atomization style; but also easily reshuffles

and optimizes the workflow by virtue of visualized workflow definition and workflow monitoring.

The thesis first shows the research on theory of DWFMS, and also on domestic and foreign

scientific research achievements. Simultaneously, it carries on the analysis and comparisons of

several main kinds of workflow technologies, discusses the implenments of distributes workflow

technologies, and compares with the different distributes workflow technologies, puts forward the

architecture of J2EE-Based engine DWF-Engine. Second, with deeply investigation of this project

background, a preliminary solution of DWFMS based on multi-duties is given. It analyzes the

system's architecture, executing strategy, data storage and so on. With deep research on technology

of WFMS and J2EE, and also with absorbing of other’s achievements, a prototype and J2EE-Based

engine DWF-Engine is designed. Later a model named "Node-Event-Action" and based on theory

of "ECA" is given, and a flexible task assignment model is also given. The models greatly

strengthen the engine’s execution flexibility. The communication of engines is based on JMS

mechanism and ORM tool is used into data storage. Some essential technologies are also

introduced in this paper. Lastly, the application of DWF-Engine is analyzed. Simultaneously, a

process example is given to show the usage and accuracy of the engine’s core. By the comparisons

with other similar workflow engines, DWF-Engine has the advantages of flexibility and

expansibility. It also studies the engines task management, data serial storage management and

engines deploy.Finallt it is the realization department. It puts forward the soft architecture of

workflow engines technology and technologies schema of the whole project. Finally, it elevates the

significance testing and develepment efficency. By the comparisons with other similar workflow

engines DWF-Engine has the advantages of flexibility and expansibility.

Key Word: Distributed Workflow Engine; Workflow Management System; J2EE

武汉大学硕士毕业论文
目录
摘要...............................................................1
Abstract...........................................................2
第一章 绪论........................................................6
1 课题研究背景.................................................6
1．2 国内外研究现状..............................................7
3 课题的研究意义...............................................9
4 本文的主要研究内容..........................................10
第二章 分布式工作流及其相关技术研究...............................11
1 分布式工作流技术............................................11
2 分布式工作流的实现技术......................................13
3 分布式工作流系统体系结构简介................................18
4 基于 J2EE 的工作流引擎体系结构...............................19
第三章 土地审批业务系统需求分析...................................22
3．1 国土电子政务系统现状.......................................22
1.1 电子政务信息系统建设现状...............................22
1.2 前期工作中暴露出的问题.................................25
2东莞市国土资源电子政务系统建模方法..........................26
2.1 业务需求分析方法.......................................26
2.2 系统分析设计方法.......................................27
3 业务系统集成................................................28
3.1 数据级集成.............................................29
3.2功能级集成.............................................29
3.3 业务级集成.............................................29
4 土地审批作业流程分析........................................30
3 分布式工作流引擎架构设计...................................37
3.1 引擎体系结构的分析与设计...............................37
1.2 系统运行策略分析.......................................40
4 分布式引擎通信机制..........................................42
4.1 通信机制的比较和选择...................................42

武汉大学硕士毕业论文
4.2 分布式引擎的注册机制...................................44
3 过程模型的分析与定义........................................45
3.1 过程模型的分析.........................................45
3.2 过程模型的定义.........................................46
第四章 审批工作流引擎的设计与实现.................................49
1 工作流引擎体系结构设计......................................49
2 流程的解析与部署...........................................50
3 流程的调度与执行............................................52
4.1 流程调度模型 NEA.......................................52
4.2 流程执行器的设计.......................................54
4.3 调度与执行服务的实现...................................55
5 引擎消息服务................................................59
5.1 传递信息分析...........................................59
5.2消息机制的设计........................................60
5.3 消息服务的实现.........................................61
6 引擎任务管理器..............................................64
6.1 任务管理器与用户的交互.................................64
6.2 任务管理器的实现.......................................65
7 数据的持久化管理............................................67
8 引擎的部署..................................................70
第五章 系统实现与性能.............................................71
1 工作流模型的软件架构.......................................71
2 分布式工作流模型实现的技术方案.............................72
2.1 表示层的具体实现.......................................73
2.2 业务层的具体实现.......................................74
2.3 数据访问层的具体实现...................................75
3 分布式工作流模型的性能评估..................................75
4 小结........................................................79
第六章 全文总结与展望.............................................80
1 全文总结....................................................80

武汉大学硕士毕业论文

6.2 课题展望....................................................80

参考文献..........................................................82

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摘要：

武汉大学硕士毕业论文基于工作流的土地审批系统的研究与实现摘要随着社会的发展和政府机构改革的深入，各个政府职能部门之间的协同工作显得越来越重要，电子政务的复杂度日益增加，原有的办公模式己经不能适应日益增长的事务处理、信息共享等方面的要求。为了提高政府的工作效率、增强政府决策能力，更好地为公众服务，必须充分利用现代化的信息技术，优化政府流程，构建高效的电子政务系统。工作流管理技术作为一种过程管理的核心技术，不仅强调某个环节的完成情况，而且还要求从整个流程的角度来看待该环节的义务管理过程，把完成最终的服务管理目标作为流程管理的目标。工作流技术还可以将信任服务、授权服务和公文流转、信息共享等业务流程有...

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