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【正文】 he main work is through the +SQL Server2021development of a popular electronic merce website urban supply and demand information work, for the users to provide information services, and as much as possible to provide all kinds of information, such as job search, recruitment, training, investment, housing, cars, sell, buy and other information. Main subject of the design and Realization of the information display, information inquiry, information, delete information, information auditing and payment settings module, task after release, users can live, work and learning is facilitated, and improve business visibility, product promotion for enterprises save a lot of cost. Based on the analysis of the user demand, the plete system function planning. Secondly, using the SQL Server2021 database information entities, categories of entity and entity information administrator access. The use of and Tomcat server has pleted the design of each module. The article realizes the system function to meet the amount to city information work of supply and demand for information display, query, and background information audit, information deleting related functional requirements, software interface beautiful, operation is convenient with easy operation and easy maintenance. Keywords ： Supply and demand information。 business website server。 Tomcat。 Struts2 technology。 information publishing 貴陽學院畢業(yè)設計（論文） III 目 錄 摘 要 ........................................................................................................................................ I Abstract ..................................................................................................................................II 第一章 前言 ......................................................................................................................... 1 第一節(jié) 課題的研究目的和意義 ................................................................................... 1 第二節(jié) 國內(nèi)外發(fā)展狀況 ............................................................................................... 1 一、國內(nèi)方面 ......................................................................................................... 1 二、國外方面 ......................................................................................................... 1 第三節(jié) 研究內(nèi)容及目標 ............................................................................................... 2 一、主要任務及要求 ............................................................................................. 2 二、預期目標 ......................................................................................................... 2 第二章 開發(fā)方法及關鍵技 術簡介 ..................................................................................... 3 第一節(jié) 開發(fā)工具與運行環(huán)境 ....................................................................................... 3 一、開發(fā)工具 ......................................................................................................... 3 二、運行環(huán)境 ......................................................................................................... 3 第二節(jié) 關鍵技術簡介 ................................................................................................... 3 一、 Struts 技術 .................................................................................................... 3 二、數(shù)據(jù)庫技術 ..................................................................................................... 4 第三 章 總體設計 ................................................................................................................... 5 第一節(jié) 總體設計 ........................................................................................................... 5 一、都市供求信息網(wǎng)前臺總體設計 ..................................................................... 5 二、都市供求信息網(wǎng)后臺總體設計 ..................................................................... 5 第二節(jié) 業(yè)務流程圖 ....................................................................................................... 6 第三節(jié) 功能設計 ........................................................................................................... 8 第四節(jié) 數(shù)據(jù)庫設計 ....................................................................................................... 8 一、各實體的 ER 圖 ............................................................................................. 8 二、表的設計 ....................................................................................................... 10 第四章 系統(tǒng)的設計與實現(xiàn) ................................................................................................. 12 第一節(jié) 公共類設計 ..................................................................................................... 12 一、數(shù)據(jù)庫連接及操作類 ................................................................................... 12 二、業(yè)務處理類 ................................................................................................... 12 三、分頁類 ........................................................................................................... 14 第二節(jié) 前臺頁面設計 ................................................................................................. 15 一、前臺頁面概述 ............................................................................................... 15 二、 前臺頁面的實現(xiàn)過程 ................................................................................. 16 第三節(jié) 前臺 信息顯示設計 ......................................................................................... 16 一、首頁信息的列表顯示 ................................................................................... 16 二、某類別中所有信息的列表顯示 ................................................................... 17 三、某信息詳細內(nèi)容的顯示 ............................................................................... 18 四、信息列表顯示中的分頁技術 ....................................................................... 19 貴陽學院畢業(yè)設計（論文） IV 第四節(jié) 信息發(fā)布模塊設計 ......................................................................................... 20 一、信息發(fā)布模塊概述 ....................................................................................... 20 二、信息發(fā)布模塊的表單驗證 ..................................