| The management of agricultural pests and diseases is an indispensable part of the process of crop planting.It is an important factor that affects the quality and yield of crops.Although computer technology has developed vigorously in recent yea rs and has been continuously integrated with the agricultural field,there is still a lack of an agricultural pests and diseases discussion platform for domestic users in the market.On the one hand,the communication needs of domestic farmers is increasing.On the other hand,there is a lack of specialized agricultural communication platforms.Therefore,it is urgent to develop a convenient,professional,and intelligent agricultural pests and diseases discussion community.This article has done the following work around the design and development of agricultural pests and diseases discussion communities:(1)Carry out market prospect analysis on the agricultural pests and diseases discussion community.The discussion community conforms to the national agricult ural digital policy and has good market prospects and development potential.Then,the author has analyze the various functions that the discussion community should have from the perspectives of user needs and business function requirements.Then,from the perspective of non-functional requirements,the author has obtained obtain important indicators that affect user experience.Finally,judg ing from both economic and technical aspects,the author has discussed the feasibility of community realization.(2)Based on the discussion of community needs and feasibility analysis,the overall structure of the discussion community is designed,and the hierarchical design model is adopted.It can be divided into four layers: presentation layer,application layer,business layer and persistence layer.The module function is designed and divided into three modules: user module,community module and recommendation module.The user module includes user registration and user login functions;the community module includes community display,article publishing and user message functions;and the recommendation module includes content recommendation functions.Finally,on the basis of the database ER relationship diagram,the detailed structure of each database table is designed.(3)According to the design of the discussion community,the user module and the community module of the discussion community are implemented with code,and the functions of user login,user registration,community display,article publishing and user message are completed,and the performance of the discussion community is optimized to simplify the dependency.Relationship,improve the performance of database access,and finally,provide solutions to the problems that arise in the discussion of community development.(4)With the help of the Mahout framework,a user-based collaborative filtering recommendation algorithm was implemented,a recommendation module for the agricultural pest discussion community was created,and articles based on user preferences were su ccessfully recommended for users.Aiming at the cold start problem of collaborative filtering recommendation algorithm,the Top N algorithm is used for optimization,and the top articles on the ranking list are recommended for new users.(5)Perform functional,safety and stress tests on the agricultural pests and diseases discussion community with various modules and functions of the community in accordance with the process.The results show that all links can operate normally;the security test covers the community user permissions,password logs,and SQL injection.The test results show that illegal malicious access can be effectively intercepted and user rights can be judged;the stress test simulates a multi-threaded concurrent access environment to view the status of the community in response to high traffic,and the average time of each link does not exceed In 1 seconds,the hardware CPU usage rate is up to 80%,and the memory usage rate is up to 78%.Various performance indicators meet the requirements of normal operation.The establishment of agricultural pests and diseases discussion community provides a communication platform for farmers and agricultural experts,promotes the modernization of agricultural informatization,promotes the popularization of a gricultural pests and diseases,enriches the prevention and control methods of farmers,and helps increase the yield and quality of crops.It provides an important reference for building an agricultural exchange ecological community in the future. |
