【正文】 要任何其他的客戶端的工具，而且由于瀏覽器完全支持多媒體形式，所以傳輸?shù)膬?nèi)容可以非常豐富多彩。B/S 結(jié)構(gòu)與其不同，它不需要安裝任何軟件，直接使用瀏覽器即可，因為它輕盈、便捷的優(yōu)勢，得到了更多用戶的偏好。其中，在線交流提供了客服與用戶及用戶間直接對話的平臺。 JDBC。t need to wait for users request operation, also don39。JavaScript 代碼還可以把樣式表加到檢索到的數(shù)據(jù)上，然后在現(xiàn)有網(wǎng)頁的聊天內(nèi)容顯示區(qū)加以顯示。本系統(tǒng)主要具有用戶注冊、用戶登錄驗證、用戶在線顯示，用戶資料查看與修改、實時聊天等功能。在實現(xiàn)實時顯示聊天內(nèi)容功能時，運用了 Ajax 技術(shù)。本系統(tǒng)采用 Struts、JSP 作為開發(fā)工具，后臺數(shù)據(jù)庫采用 sql server 2022 數(shù)據(jù)庫設(shè)計，利用基于 JDBC 的 ODBC 數(shù)據(jù)庫訪問技術(shù)實現(xiàn)對數(shù)據(jù)庫的各種管理操作，實現(xiàn)用戶登錄驗證的功能、用戶聊天的功能和顯示在線聊天用戶信息等功能。t have to update the whole window can show new data obtained. As long as the transfer of the back and forth an XML format data in the browser, operates the JavaScript code can to contact a web server. JavaScript code can also add to the style sheet to retrieve data, and then in the existing web chat show area to show the content. The system USES Struts, JSP as development tools, the backend database using SQL server 2022 database design, use the ODBC database access based on JDBC database technology to achieve various management operation, realize user login the verification of the function, the function and user chat show chat online user information etc. Function. Key words: Ajax。 chat room 目 錄摘 要 ........................................................................................................................................................................IABSTRACT.........................................................................................................................................................II目 錄 .....................................................................................................................................................................III第一章 緒論 ......................................................................................................................................................1 設(shè)計的研究意義 ........................................................................................................................................1 研究概況及發(fā)展趨勢 ...............................................................................................................................1第二章 系統(tǒng)設(shè)計基本原理與技術(shù) ....................................................................................................3 SQL SERVER 2022...................................................................................................................................3 SQL 簡介 ..............................................................................................................................................3 SQL 數(shù)據(jù)庫體系結(jié)構(gòu) ......................................................................................................................3 SQL 的組成 ..........................................................................................................................................4 簡介 .......................................................................................................................................4 關(guān)鍵技術(shù) .......................................................................................................................................................7 AJAX 技術(shù) .............................................................................................................................................7 APPLICATION 對象 ............................................................................................................................10 SESSION 對象 .....................................................................................................................................11第三章 需求分析 .........................................................................................................................................13 需求分析 ......................................................................................................................................................13第四章 系統(tǒng)概要設(shè)計 ................................................................................................................................15 系統(tǒng)功能模塊圖 .........................................................................................................................................15 系統(tǒng)流程圖 .................................................................................................................................................17第五章 詳細設(shè)計 .........................................................................................................................................19 數(shù)據(jù)庫模塊設(shè)計 ................................................................................................................19 用戶登錄模塊設(shè)計 ....................................................................................................................................20 用戶注冊模塊設(shè)計 ....................................................................................................................................23 顯示在線用戶模塊設(shè)計 .........................................................................................................................26 用戶退出模塊設(shè)計 ....................................................................................................................................27第六章 系統(tǒng)的測試和維護 ..................................................................................................................29 系統(tǒng)調(diào)試與測試的作用和意義 .............................................................................