锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲精品国产电影,亚洲AV综合永久无码精品天堂,亚洲色欲啪啪久久WWW综合网http://www.tkk7.com/doulei/category/12182.htmlzh-cnTue, 27 Feb 2007 12:33:28 GMTTue, 27 Feb 2007 12:33:28 GMT60Servlet 2.4瑙勮寖闃呰絎旇(2-3绔?http://www.tkk7.com/doulei/archive/2006/06/14/52866.htmlHello JavaHello JavaWed, 14 Jun 2006 15:43:00 GMThttp://www.tkk7.com/doulei/archive/2006/06/14/52866.htmlhttp://www.tkk7.com/doulei/comments/52866.htmlhttp://www.tkk7.com/doulei/archive/2006/06/14/52866.html#Feedback0http://www.tkk7.com/doulei/comments/commentRss/52866.htmlhttp://www.tkk7.com/doulei/services/trackbacks/52866.html 絎?绔?The servlet Interface
鎵鏈塖ervlet瀹炵幇鍚屼竴鎺ュ彛錛歋ervlet,瀹冩湁涓や釜鐩存帴鐨勫瓙綾伙細GenericServlet鍜孒ttpServlet.
2.1 Request Handle method
鍩烘湰鐨凷ervlet浣跨敤service()鏂規硶澶勭悊璇鋒眰,鍥犱負鍙兘鏈夊涓鎴風殑璇鋒眰鍦╯ervice()涓伐浣滐紝鎵浠ュ紑鍙戣呭繀欏昏鑰冭檻鍒板茍鍙戠殑鎯呭喌銆?span style="font-weight: bold;">
SRV.2.1.1 HTTP Specific Request Handling Methods
HttpServlet瀹氫箟浜嗕互涓?涓柟娉曪細
  • doGet for handling HTTP GET requests
  • doPost for handling HTTP POST requests
  • doPut for handling HTTP PUT requests
  • doDelete for handling HTTP DELETE requests
  • doHead for handling HTTP HEAD requests
  • doOptions for handling HTTP OPTIONS requests
  • doTrace for handling HTTP TRACE requests
SRV.2.1.2 Additional Methods
聽聽聽 鍏充簬Http鐨勫嚑涓檮鍔犲懡浠EAD,DELETE,PUT,OPTIONS,TRACE銆?br />SRV.2.1.3 Conditional GET Support
榪欎釜鈥滳onditional GET鈥滄寚鐨勬槸榪欐牱鐨勮姹傦細鍙湁鎵璇鋒眰鐨勮祫婧愬湪涓涓壒瀹氭椂闂翠箣鍚庤淇敼榪囷紝鎵嶈鍙戦佺粰瀹㈡埛绔?br /> HttpServlet閲岀殑getLastModified()鏂規硶鎻愪緵浜嗚繖鏂歸潰鐨勬敮鎸併?span style="font-weight: bold;">
SRV.2.2 Number of Instances
聽聽聽 鍦?.4涔嬪墠鐨勭増鏈腑錛孲ervlet鏈変袱縐嶆柟寮忥細
聽聽聽 絎竴縐嶆柟寮忔槸瀵逛簬涓涓猄ervlet錛屽彧鏈変竴涓疄渚嬶紝榪欎釜瀹炰緥鍙互鍚屾椂鏈嶅姟澶氫釜鐢ㄦ埛錛岃繖鏄粯璁ょ殑銆?br /> 聽聽聽 鍙︿竴縐嶆柟寮忔槸涓涓猄ervlet鐨勫疄渚嬪彧鑳芥湇鍔′竴涓鎴鳳紝榪欐牱灝遍渶瑕佷竴涓猄ervlet鐨凱ool錛屽綋澶氫釜鐢ㄦ埛榪炴帴鏃訛紝闇瑕佸緩绔嬪涓猄ervlet瀹炰緥銆傝繖縐嶆柟寮忛渶瑕丼ervlet瀹炵幇SingleThreadModel鎺ュ彛銆?br /> 聽聽聽 浠ヤ笂涓ょ鏂瑰紡鐨勬瘮杈冿細絎竴縐嶆柟寮忛渶瑕佽冭檻鍚屾闂錛堝洜涓轟竴涓猄ervlet鐨勫疄渚嬫湇鍔″涓敤鎴鳳紝Servlet涓殑鏁版嵁鎴愬憳闇瑕佸悓姝?,絎簩縐嶆柟寮忎笉闇瑕佽冭檻鍚屾闂銆?br /> 聽聽聽
SRV.2.3 Servlet Life Cycle
聽聽聽 1.杞藉叆錛毬犅犅?/span>
聽聽聽 搴旂敤鏈嶅姟鍣ㄥ彲鑳藉湪鍚姩鏃惰澆鍏ervlet鎴栬呭湪絎竴涓姹傚埌鏉ユ椂寤惰繜鍔犺澆,杞藉叆鐨勬柟寮忎篃鏄嬌鐢ㄧ被瑁呰澆鍣紝鍜屾櫘閫氱殑Java Object娌℃湁浠涔堝尯鍒?br /> 聽聽聽 2.鍒濆鍖栵細
聽聽聽 鍒濆鍖栨椂鍙兘閬囧埌閿欒錛岃繖鏃朵細鎶涘嚭ServletException鎴栬匲naviliableException寮傚父
聽聽聽 3.澶氱嚎紼嬶細
聽聽聽 闇瑕佹敞鎰忕殑涓鐐規槸錛屾渶濂戒笉瑕佸service()鏂規硶榪涜synchronize淇グ銆傝繖鏍風殑璇濆氨涓嶈兘浣跨敤綰跨▼姹狅紝鑰屽繀欏誨request搴忓垪鍖?br /> 聽聽聽 4.澶勭悊璇鋒眰鏃剁殑閿欒澶勭悊錛?/span>
聽聽聽 濡傛灉鍦ㄨ繖鏃跺彂鐢熷紓甯革紝鍙互鍙戦乁navailableException鎴栬匰ervletException,濡傛灉鍙戦佷簡 ServletException,鏈嶅姟鍣ㄥ繀欏昏鎯沖姙娉曟竻闄equest銆傚鏋滃彂閫佷簡UnavailableException,鏈変袱縐嶉夋嫨錛屽鏋滄槸姘? 涔呯殑鐨勬棤鏁堬紝闇瑕佽皟鐢╠estroy()錛屽茍鎽ф瘉Servlet錛屽鏋滆繖鏃跺鎴風璁塊棶姝ervlet錛屽畠灝嗕細鏀跺埌404閿欒銆傚鏋滄槸涓存椂鐨勬棤鏁堬紝瀹瑰櫒闇 瑕佹嫆緇濅換浣曞埌姝ervlet鐨勮姹傦紝騫朵笖榪斿洖503閿欒
聽聽 5.綰跨▼瀹夊叏鐨勮瘽棰?/span>
聽聽聽 request鍜宺esponse榪欎袱涓璞′笉鏄嚎紼嬪畨鍏ㄧ殑錛屾墍浠ヤ笉瑕佸湪service()鏂規硶澶栭潰浣跨敤瀹冧滑錛屽畠浠殑寮曠敤涓嶅簲璇ヤ紶緇欏彟涓涓嚎紼嬩腑鐨勫璞★紝濡傛灉涓瀹氳璁塊棶瀹冧滑錛屽繀欏誨浣跨敤榪欎袱涓璞＄殑浠ｇ爜榪涜鍚屾銆?br style="font-weight: bold; text-decoration: underline;" />聽聽聽 6.鏈嶅姟鐨勭粨鏉?/span>
聽聽 Servlet瀹瑰櫒騫朵笉闇瑕佷竴鐩翠繚鎸佷竴涓猄ervlet澶勪簬榪愯鐘舵侊紝鍦ㄩ噴鏀句竴涓猻ervlet鏃訛紝浼氳皟鐢╠estroy鏂規硶錛屽綋璋冪敤destroy鏂規硶涔嬪墠錛屽鍣ㄤ細涓鐩寸瓑鍒版墍鏈夌殑綰跨▼閮藉畬鎴愪簡鍦╯ervice()鏂規硶涓殑宸ヤ綔銆?br />
絎?绔?Servlet Context
SRV.3.1 Introduction to the ServletContext Interface
Servlet Context錛屼粠Servlet鐨勮搴︽潵鐪嬶紝鍙互鐞嗚В涓哄畠鎵灞濿eb搴旂敤紼嬪簭錛孲ervletContext鏄竴涓帴鍙ｏ紝Servlet瀹瑰櫒鐨勬彁渚涘晢蹇呴』瑕佸疄鐜拌繖涓帴鍙ｃ?br /> ServletContext鑳藉仛浠涔堝憿錛熷畠鍙互鎶婁簨浠惰褰曞埌鏃ュ織涓紝鑾峰緱璧勬簮鐨刄RL錛岃繕鍙互鍒╃敤ServletContext瀛樻斁涓浜涙墍鏈塖ervlet閮借兘鍏變韓鐨勬暟鎹?br /> ServletContext鏈変竴涓礬寰勶紝渚嬪http://www.mycorp.com/catalog錛岃繖閲岀殑cataqlog灝辨槸ServletContext鐨勮礬寰勶紝鎵鏈夌殑瀵筩atalog鐨勮姹傞兘浼氬叧鑱斿埌榪欎釜ServletContext.
SRV.3.2 Scope of a ServletContext Interface

鍦⊿ervlet瀹瑰櫒涓紝姣忎釜ServletContext閫氬父鍙湁涓涓疄渚嬨傚綋Web瀹瑰櫒鏄垎甯冨紡鐨勯儴緗插湪澶氬彴鏈哄櫒涓婃椂錛岄偅涓涓猄ervletContext鍦ㄦ瘡涓狫VM涓婇兘鏈変竴涓疄渚嬨?br /> 鍦⊿ervlet瀹瑰櫒涓紝浣嗘病鏈夐儴緗茬殑Servlet涔熸槸鍏佽鐨勶紝榪欑Servlet灞炰簬涓涓己鐪佺殑ServletContext錛岃繖縐嶇己鐪佺殑ServletContext涓嶈兘琚垎甯冨埌澶氫釜JVM涓娿?br />SRV.3.3 Initialization Parameters
鍦⊿ervletContext鎺ュ彛涓紝鏈変袱涓柟娉曞彲浠ョ敤鏉ヨ幏寰楀垵濮嬪寲鍙傛暟錛?span style="font-weight: bold;">
鈥?getInitParameter
鈥?getInitParameterNames
SRV.3.4 Context Attributes
鍦⊿ervletContext涓紝鏈?涓柟娉曞彲浠ョ敤鏉ヨ緗拰綆＄悊ServletContext鐨勫睘鎬э細
鈥?setAttribute
鈥?getAttribute
鈥?getAttributeNames
鈥?removeAttribute
SRV.3.4.1 Context Attributes in a Distributed Container
ServletContext涓殑灞炴у彧鍦ㄦ湰鍦扮殑JVM涓湁鏁堬紝涓嶈兘琚垎甯冨紡鐜涓繍琛屼簬鍏跺畠JVM涓殑Servlet璁塊棶錛屽鏋滈渶瑕佸湪鍒嗗竷寮忕幆澧冧腑鍏變韓鏁版嵁錛屽彲浠ユ妸鏁版嵁瀛樻斁鍦⊿ession錛屾暟鎹簱鎴朎JB涓?br />SRV.3.5 Resources
璧勬簮鎸囩殑鏄湪Web搴旂敤紼嬪簭涓殑涓浜涢潤鎬佺殑鍐呭錛屽闈欐丠TML欏甸潰錛屽浘鐗囩瓑絳夈係ervletContext鎻愪緵浜嗕袱涓柟娉曟潵璁塊棶榪欎簺璧勬簮錛?br /> 鈥?getResource
鈥?getResourceAsStream
榪欎袱涓柟娉曢兘鎺ュ彈涓涓猄tring鍨嬪弬鏁幫紝瀹冩寚瀹氫簡涓涓互"/"寮澶寸殑鐩稿浜庤繖涓猄ervletContext鐨勮祫婧愯礬寰勩傝祫婧愬彲浠ユ斁鍦ㄥ悓涓鏈嶅姟鍣ㄤ笂錛屾垨鑰呬笉鍚屾湇鍔″櫒涓婏紝鎴栬呭湪涓涓猈eb搴旂敤紼嬪簭鐨刉AR鍖呬腑銆?br /> 闇瑕佹敞鎰忕殑鏄紝榪欎袱涓柟娉曚笉鑳界敤鏉ヨ幏鍙栧姩鎬佸唴瀹癸紝濡傛灉鎴戜滑鐢ㄨ繖涓や釜鏂規硶鍘誨彇涓涓狫SP欏甸潰錛岃繑鍥炵殑灝嗘槸JSP欏甸潰鐨勬簮浠ｇ爜銆?br /> getResourcePaths(String path)鏂規硶鍙互鐢ㄦ潵鑾峰彇涓涓祫婧愬垪琛ㄣ?br />SRV.3.6 Multiple Hosts and Servlet Contexts
Web鏈嶅姟鍣ㄥ彲鑳芥敮鎸佸涓煙鍚嶅垎浜竴涓狪P鍦板潃錛岃繖縐嶉厤緗彨鍋氣滆櫄鎷熶富鏈衡濄傚湪榪欑鎯呭喌涓嬶紝姣忎釜铏氭嫙涓繪満蹇呴』瑕佹湁鑷繁鐨凷ervletContext錛岃屼笉鑳藉叡浜竴涓猄ervletContext銆?br />SRV.3.7 Reloading Considerations
鎵鏈夌殑Servlet鍜屽畠浠紩鐢ㄧ殑綾誨繀欏婚兘澶勪簬涓涓被瑁呰澆鍣ㄨ寖鍥村唴銆?br />SRV.3.7.1 Temporary Working Directories
姣忎竴涓猄ervletContext閮介渶瑕佷竴涓復鏃剁洰褰曪紝騫朵笖閫氳繃 javax.servlet.context.tempdir灞炴ф寚瀹氥係ervlet瀹瑰櫒涓嶉渶瑕佺鐞嗚繖涓復鏃惰礬寰勭殑鍐呭錛屼絾鏄紜繚涓涓? ServletContext鐨勪復鏃剁洰褰曞鍏朵粬鐨凷ervletContext鏄笉鍙鐨勩?br />

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