The Structure Of The National Petroleum Resources Database Using And Management System

"The National Petroleum Resources Database Construction"is the sub-topic of the digital national territory project (the project number: 1211010750107). The present paper aims at the designing of the National Petroleum Resources Database Using And Management System construction.This system construction development uses the MVC pattern. MVC is Model– View–Controller .The model processes the backstage data and business logic .The view is used to demonstrate that the backstage the attribute data and spatial data's contact surface (may be C/S UI, may also be the B/S browser), may also transmit the request which the user must process .The controller is the intermediary between the view and the model, it is responsible to the requesting of the view for the concrete model, causing the view to make the corresponding demonstration change. And the Model layer may also be subdivided into the handling of the business layer and the data manipulation layer. The handling of business layer undertakes by the Web service module, through the server module to visit the Web, had guaranteed C/S Win Form and B/S Web Form and the JSP page execute the identical request obtains the same result . Therefore uses the MVC pattern to separate the view, the control and the model. The separation makes the system's structure more clear and which will be advantageous in the module and future system maintenance.Using the object-oriented analysis design technique in demand stage of this system .The system takes the UML (Unified Modeling Language) as the model language of the system architecture, Using the circulation life cycle method of exploitation, has been helpful to the SA concept penetration entire software life cycle, thus had guaranteed the software development process's concept integrity, expressed the large-scale complicated system's architecture effectively. Using this method is helpful between the guarantee demand analysis and the system design traceability and the uniformity, in the overall system performance history, the user, the analysis designers, the programmer, the system integration personnel, the administrative personnel understand the system from different view of the combination model and exchange the thought. Using the UML object-oriented technologies to design this software system construction, the software architecture's concept penetration in the three stages are demand analysis, designs and realizes.This system has completed the National Petroleum Resources Database Using And Management platform which contains the local area network subsystem, the WAN subsystem and the inputting subsystem. This system first reflects our country and the international oil gas resources situation comprehensively in domestic. This system also has the ability of handling comprehensive spatial information.The C/S construction's application has the characteristics of speed of responding, operation contact surface personalization and complex flow adaptation quick and so on. This system uses the C/S construction to realize including various special petroleum resources data inquiry, compiles service functions, spatial operation, spatial inquiry, space and attribute interoperability. The system completes the onstage customer to submit and to transform Web the service the request. This system mainly visits to various special basic information, amount of resources and so on attribute data maintenances. The multiform compiles the analysis and can connect to the database of the spatial data, loading the data, revising the data, and so on concrete service. Let system's user visit to the local area network to get a more complex processing data which is deployment on the database server. The user cannot directly through Internet to visit The National Petroleum Resources Database. The user derive the data which are conform to the foreign announcement condition to a special foreign announcement country Petroleum Resources data server, thus making the data separate the connection from the net, therefore the data that the users will visit has been processed .Thus the data of the system is safe.In order to enable this system issue the petroleum resources information promptly. This system provides the petroleum resources basic data through net to issue, the attribute data basic inquiry, the attribute data unification inquiry and so on spatial data basic management. This system's outside net part uses the B/S construction, enables the public through the WWW browser convenient to inquiry some basic information. Considering the security and the secrecy of the data, the National Petroleum Resources data that are issued to the public must undergo the strict appraisal to be able to issue to the public. Moreover the database are issued to the public is subset to the local area's database. These two database in physics must isolate completely. This system usually through the Intranet link to connect to the Petroleum Resources database, and according to assigned from already uploaded various special data which through the appraisal data takeoff rule withdrew to the petroleum resources database which wants to issue, then cutting of the intranet's connection. Needs to consume server's massive resources by the B/S pattern's spatial data operation, moreover needs to wait for a long time. Considering to make the customer operation conveniences and friendliness, to avoid the customer because of withdrawing the massive spatial data to be unable to endure the long time waiting. So the all B/S pattern function uses the newest AJAX technology to realize. AJAX uses the asynchronous communication mechanism movement. Therefore the customer operates this system equally with the C/S pattern, the users does not need to wait other duties after sending out the request. The result which is very quickly calculated by the system returns to browser's page, the attribute data will present by the paging attractive tabular form. The result that is the spatial data of inquiring and anglicizing will returns as many kinds of picture.This system realized the Excel data intelligence inputting system, this system is to satisfy the national petroleum resources database 10 topics saved by the Excel preservation nearly hundred attribute list data to transmit into the Access database. It must choose one from many EXCEL sheets which preserve National Petroleum Resources information, then choose one to preserve the concrete topic in some table. The users must carry on the strict data check and finally preserved the database in the goal table.This system has completed the data form outputting system. This system can use the form style which the user provides. To produce form dynamically according to the user inquiry's result, simultaneously providing functions such as printing preview and printing setup. The users can print the data and preserve the data more convenience.This system completed the charting system, this charting system's function including drawing up the statistical result into the graph (for example line and so on)that the user chose, adjusting stick plot column size, demonstrating the graph value, setting background picture, setting the abscissa axis ordinate axis title and the total title, preserving picture and the printing picture function.In brief, the design of the National Petroleum Resources Database Using And Management System construction has provided the very good theory to realize the system.