Design And Implementation Of Vegetable Price Information Monitoring And Analysis System Based On Web Crawler

As China is a big exporter of agricultural products,the export of vegetables is an important part of the trade of agricultural products.With the development of international emerging markets,the export of vegetables in China increases year by year,and the future production of vegetables will become the focus of agricultural production in China.Vegetables,however the network information and has a strong timeliness,the same vegetables in different regions of the price gap is bigger,how to extract in large agricultural data to help agricultural production,sales,good information is very important,which requires a precise vegetables,comparing the price information to help the government vegetable prices of agricultural products market regulation;At the same time,farmers can selectively plant agricultural products according to real-time prices to avoid losses.The existing agricultural vertical search engine focuses more on the trading information of agricultural products.Although it provides a convenient trading platform,it is not convenient for agricultural producers to analyze the market,nor can it provide a reference for agricultural producers to plant.Therefore,it is necessary to design a monitoring and analysis system for vegetable price information to facilitate agricultural producers to understand the price trends of different vegetables more quickly,accurately and timely,so as to facilitate more reasonable planting.The monitoring and analysis system of vegetable price information based on web crawler designed in this paper includes three parts: vegetable price information collection,vegetable price information storage and vegetable price information analysis.First written using c # language based on.net framework of web crawler to crawl in vegetable prices information data,and then crawl to the data stored in the mongo database,data import and export data in directing,indexes,such as operation,the use of ali cloud datav visualization tool for data visualization analysis,to detect the change trend of vegetable prices around vegetables,sales situation and influencing factors of vegetable prices provide farmers with a reasonable production decision give vegetables wholesale vegetable distribution route,etc.This system has simple operation and perfect function,which realizes the real-time monitoring of vegetable price,provides accurate data for farmers and vegetables,and plays an important role in promoting the establishment of agricultural informatization and vegetable price monitoring system in China.