| The severe weather phenomena is more and more frequent in the whole world, such as downpour, hurricane, and sandstorm, they largely damage the life and property of human beings. Severe Weather Database System is exploited and invested by Chinese meteorological phenomena science research institute country disaster weather priority laboratory, the system is used for collecting kinds of disaster meteorological data and convenient for the researchers to download data they need from the server. The system has optimized store for enormous data, and simplified the process of download the data for use for the researcher, ensured that all kinds of data is secure, valid and utile.The Rational Unified Process is used as development tool and UML is used as description language for analyzing and design in this paper. The system adopts object-oriented idea on the degree management business of requirements acquisition, requirements analysis and system design. According to the characteristics and the uses, the system implements many function modules in the severe Weather Database System, using B/S architecture model in form, using multi-level software functional framework in function, adopted SVN Edition control technique, based on the J2EE-based technical Structsl, Spring, Hibernate, Quartz framework in technique. The system uses Java as the programming language, and uses XML configuration and Dao, Hibernate related technologies, realized the function of data server on line, users and authority management, system management, data collect and store, and System monitored. On aspect of storage of massive data, we use Oracle as database to store data, adopting the technical of partition, partition-index and global-index to process the table of database, which achieve rapid query. In the area of security, the system adopts role management based on authority management to enhance system security. Through the external interface to provide query service, the FTP to provide data download, and the system of internal business processes to provide a complete interface to operate or query data, the system achieve internal and external data on the system of data server.In the system analysis, the requirement acquisition methods in system development process are explained and a detailed description for system and business processes in general business is carried out. Also the functions of five modules as well as the relationship between the modules are described. Also the functions of five modules as well as the relationship between the modules are described. From the structure design, code conversion design, database design and so on describes detailed the design of the system, and obtained the system design classes and database model.At present, the system has already handed over and will being completed stage, Severe Weather Database System being on line and put into practice will be make great progress to meteorological phenomena the scientific research... |
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