Construction Plan of National Agricultural website Information resource Database

In order to implement the National Agricultural Information Conference Spirit, give full play to the central and local information resources advantages, integrate information resources, the national agricultural system to build a unified, shared "National Agricultural Web site information resource Pool", together to create "national information Network" brand-name channel, better for the "three rural" service.

Through the construction of "National Agricultural Web site information resource database" to strengthen the integration of agricultural system information resources, promote the national agricultural information sharing, through the construction of "National Information Network" channel, set up the overall image of the national agricultural Information system, reduce duplication of work, repeat input, improve the timeliness, comprehensiveness and authority of information

Status Quo and demand analysis

The Deputy Minister of Agriculture, fan, in the report of the National Agricultural Information Conference, stressed: "In the integration of information resources development, we should pay attention to the problem of horizontal ' information island ' and vertical ' web content similar '." "To build through institutionalization, changing information duplication collection, segmentation ownership, monopoly use and inefficient development of the situation;" Vertical aspects, the establishment of a sound information collection index system, the development of universal information collection software, the implementation of a unified data standards, the use of public modules, the realization of one-stop publishing, system-wide sharing, Raise the level of information resources development of agricultural system comprehensively. "In order to implement the National Agricultural Information Work Conference spirit, the Department of Agriculture of the Ministry of Information intends to unite the provincial and municipal agricultural clearing house, increase resources integration efforts, and carry out the construction of" National Agricultural website Information Resource Database "and" National Information Network "channel work.

The Ministry of Agriculture is currently using a network of middle-net information-gathering and editing system (WCM), which requires manual input and editing of information and finally released to the Ministry of Agriculture website. Everywhere also have their own corresponding Web site and database system. Guangzhou, Shanghai also uses the information to collect hair system (WCM) for local information collection and release, the rest of the provinces are other application systems to maintain information on the site. At present, some provinces have regularly emailed the local data to the Ministry of Agriculture, the Ministry of Agriculture manual data entry and release.

There are 9 provincial and municipal agricultural information centers in China (Guangdong, Heilongjiang, Jilin, Yunnan, Fujian, Jiangsu, Beijing, Inner Mongolia, Jiangxi, through email daily or irregular to the Chinese agricultural Information network to send information, the Chinese agricultural Information network in the "Central and local news headlines," the release of several more information to expand its impact. However, the "Central and local news headlines" can only issue 10 messages a day (after July 22 has been expanded to 15), can not meet the needs.

China Agricultural Information Network will receive some of the provinces and municipalities of the email information and from the provincial and municipal websites extracts of information, loaded into the WCM compilation and compilation platform of the database for selection and publication. The provinces and municipalities receive daily e-mail messages from the China Agricultural Information Network (one day behind), or extract information from the Chinese Agricultural Information web site. This way, the workload, duplication of labor, efficiency is not high, timeliness is not strong, affect the effect of information services.

Therefore, the construction of the "National Information Network" channel and "National Agricultural Web site information resource pool" from the central to the place are urgent needs.

II. Application System Solutions

Ministry of Agriculture National Agricultural Web site information resource database and the "National Information Network" channel construction, the Ministry of the Center to the middle-net of the acquisition and compilation of the platform, from the provincial and municipal websites to the rural network information customization, conversion, transmission and release through the message middleware tonglink/ Q and application integration middleware Tongintegrator.

System Overall architecture diagram

In the provincial and municipal sites of the information collection interface, the category of information and information to be sent to the Ministry is identified, through the provincial and municipal message-oriented middleware, forms the XML file, transmits to the Department Network Center, the Ministry-level message middleware, parses the XML file, stores it to the database server, and incorporates the management platform of the Middle-farm network mining. At the same time, the middle-level network of acquisition and compilation of the platform will need to be in the national provinces of the information stored in different directories, through the message middleware for the next transmission and in the provinces for warehousing or directly loaded into the Web site system.

After receiving the data from the Ministry, call the Web Service Interface network resource information base provided by WCM; The Ministry of Agriculture's compilation platform prepares the data to be broadcast to the provinces (. zip files), which are stored in different directories and passed to the provinces. After receiving the data from the provincial front, if there is a WCM system, will directly call the Web service into the province's resource information base, no WCM system will need to extract the ZIP packet, parsing XML files, and in the basic information table and attachment information table, but also to complete the static page of the next pass.

Third, the technical characteristics of the construction system

Dongfang Tong Technology company as one of the most important middleware platform technology providers, in the application integration technology, message-oriented middleware technology and other fields has been in the domestic leading position, with sophisticated technology and a strong service team, and its products have been widely recognized by users. Based on message-oriented middleware technology and application integration middleware technology, "National Agricultural website Information resource base" and "National Information Network" channel have the following characteristics:

The openness of technology platform

The "National Agricultural Web site information resource base" and the "National Information Network" channel system, which is based on message middleware and application integration middleware, adopt open technical standards, such as XML and JMS, to facilitate interconnection and interoperability with various internal and external systems based on different development technologies.

Advanced Technology Platform

Message middleware implements the message bottom, after many years ' development and application, it still has irreplaceable function in the field of information exchange and reliable transmission. Application integration Middleware has a powerful effect on the integration of distributed systems and the rational utilization of existing systems, and it can also be used to integrate and share data well.

The convenience of application development

Middleware technology applied in this system, while providing a wide range of services, the technical implementation details are adequately shielded, and the APIs that are simple and easy for developers to understand and use provide the basic services required by the upper tier applications, ensuring that application developers focus on applying business logic, effectively reducing development difficulties, shortening development cycles, Cut development costs.

Transmission Reliability

The data transmission platform built by message-oriented middleware can guarantee the reliability of transmission. In message-oriented middleware, transmission data can be stored and sent through reliable message queues, and the data can be transmitted reliably after the system and network are restored, even if there is a downtime or network failure.

Scalability of the system

The middleware provides good business type extensibility and business scale extensibility for the whole application system, and ensures that the system can quickly and conveniently introduce new hardware and software systems to protect the old system investment as the time increases.

Robustness of the system

The robustness of the application system depends on the robustness of the middleware product, on the other hand, the robustness of the application system. The middleware used in this system has been widely tested in a variety of user systems, and the application system built on the basis of the development difficulty, the corresponding robustness is more easily guaranteed.