互聯(lián)網(wǎng)開發(fā)技術(shù)第六講web技術(shù)-文庫吧資料
2024-10-08 16:59本頁面
【正文】 Request Response Servlet2 Servlet3 Filter A Filter B Filter C Filter D Filter Functions ? 對網(wǎng)絡(luò)請求進(jìn)行分析 , 對輸入數(shù)據(jù)進(jìn)行預(yù)處理 ? 阻止請求和響應(yīng)的進(jìn)行 ? 根據(jù)功能改動請求的頭信息和數(shù)據(jù)體 . ? 根據(jù)功能改動響應(yīng)的頭信息和數(shù)據(jù)體 . ? 和其他網(wǎng)絡(luò)資源協(xié)作 Filter Chain F i l t e r 3F i l t e r C h a i n . d o F i l t e rF i l t e r C h a i n .d o F i l t e rC l i e n tF i l t e r 1 F i l t e r 2 S e r v l e td o F i l t e r ( )se r vi ced o F i l t e r ( )d o F i l t e r ( )F i l t e r C h a i n .d o F i l t e rd o P o st ( ) o r d o G e t ( )R e sp o n seR e sp o n seR e sp o n seR e sp o n seM o d i f yR e q u e stM o d i f yR e sp o n seFilter Setup in filter icon/icon filternameSimpleFilter/filtername displaynameASimpleFilter /displayname description The first filter sample/description filterclass /filterclass initparam paramnameparam1/paramname paramvaluevalue1/paramvalue /initparam /filter …… filtermapping filternameSimpleFilter /filtername urlpattern/path//urlpattern /filtermapping Filter Example P109, Filter to Check Password Security Filter Action Listener serlvet的事件監(jiān)聽器接口能夠處理ServletContext, HttpSession, ServletRequest的生命周期和屬性變化事件 listener listenerclass …… /listenerclass /listener Data Base Connection J2EE Web Container Web Browser request response HTML URL click display Generate HTML HTML HTML Database SQL Data resource JDBC Connection JDBC Connection ? 1. Use JDBC Driver ? Put in /mon/system/lib ? (“UniversalDriver”)。 To Load Another Servlet ? (req, resp)?；ヂ?lián)網(wǎng)開發(fā)技術(shù) Inter Systems Development Technologies 蔡 劍 , . Assistant Professor in Management Science and EBusiness Guanghua School of Management Peking University 本講內(nèi)容 ? Web
環(huán)評公示相關(guān)推薦
鄂ICP備17016276號-1