涓?銆丣SP鍜孲ervlet涓殑Cookie聽
聽聽聽聽鐢變簬HTTP鍗忚鏄棤鐘舵?佸崗璁紙铏界劧Socket杩炴帴鏄湁鐘舵?佺殑锛屼絾姣忔鐢℉TTP鍗忚杩涜鏁版嵁浼犺緭鍚庡氨鍏抽棴鐨凷ocket杩炴帴锛屽洜姝わ紝HTTP鍗忚骞朵笉浼氫繚瀛樹笂涓?娆＄殑鐘舵?侊級锛屽洜姝わ紝濡傛灉瑕佷繚瀛樻煇浜汬TTP璇鋒眰杩囩▼涓墍浜х敓鐨勬暟鎹紝灏卞繀椤昏鏈変竴绉嶇被浼煎叏灞?鍙橀噺鐨勬満鍒朵繚璇佹暟鎹湪涓嶅悓鐨凥TTP璇鋒眰涔嬮棿鍏變韓銆傝繖灏辨槸涓嬮潰瑕佽鐨凷ession鍜孋ookie銆?
聽聽聽 Cookie鏄?氳繃灏嗘暟鎹繚瀛樺湪瀹㈡埛绔殑纭洏锛堟案涔匔ookie锛夋垨鍐呭瓨锛堜複鏃禖ookie锛変腑鏉ュ疄鐜版暟鎹叡浜殑涓?绉嶆満鍒躲?傚湪Windows涓嬶紝淇濆瓨鍦ㄨ繖浜汣ookie鏁版嵁鐨勭洰褰曚竴鑸槸C:\Documents and Settings\Administrator\Cookies銆傛瘡涓?涓狢ookie鏈変竴涓秴鏃舵椂闂達紝濡傛灉瓒呰繃浜嗚繖涓椂闂達紝Cookie灏嗚嚜鍔ㄥけ鏁堛?傚彲鎸夊涓嬫柟娉曟潵璁劇疆Cookie鐨勮秴鏃舵椂闂達細
聽聽聽 Cookie cookie = new Cookie("key","value"); cookie.setMaxAge(3600);聽 // Cookie鐨勮秴鏃堕棿涓?00绉掞紝涔熷氨鏄?忔椂 聽聽聽 response.addCookie(cookie); 聽 濡傛灉涓嶄嬌鐢╯etMaxAge鏂規硶锛孋ookie鐨勮秴鏃舵椂闂翠負-1锛屽湪杩欑鎯呭喌涓嬶紝Cookie灏辨槸涓存椂Cookie锛屼篃灏辨槸璇磋繖绉岰ookie瀹為檯涓婂苟涓嶄繚瀛樺湪瀹㈡埛绔‖鐩樹笂锛岃?屾槸淇濆瓨鍦ㄥ鎴風鍐呭瓨涓殑銆傝鑰呭彲浠ュ湪JSP涓繍琛屽涓嬩唬鐮侊紝鐪嬬湅鏄惁浼氬湪涓婇潰鎻愬埌鐨勪繚瀛榗ookie鐨勭洰褰曚腑鐢熸垚cookie鏂囦歡锛?
聽Cookie cookie = new Cookie("key","value"); response.addCookie(cookie); 聽 瀹為檯涓婁嬌鐢╯etMaxAge灏嗚秴鏃舵椂闂磋涓轟換鎰忕殑璐熸暟閮戒細琚鎴風娴忚鍣ㄨ涓烘槸涓存椂
Cookie锛屽涓嬮潰鐨勪唬鐮佸皢鍦ㄥ鎴風鍐呭瓨涓繚瀛樹竴涓複鏃禖ookie锛?
Cookie cookie = new Cookie("key","value"); cookie.setMaxAge(-100);聽 // 灏哻ookie璁句負涓存椂Cookie 聽聽聽 response.addCookie(cookie); 聽 濡傛灉绗竴娆″皢Cookie鍐欏叆瀹㈡埛绔紙涓嶇鏄‖鐩樿繕鏄唴瀛橈級锛屽湪鍚屼竴鍙版満鍣ㄤ笂绗簩娆¤闂?
璇ョ綉绔欑殑jsp椤甸潰鏃訛紝浼氳嚜鍔ㄥ皢瀹㈡埛绔殑cookie浣滀負HTTP璇鋒眰澶寸殑Cookie瀛楁鍊間紶缁欐湇鍔＄锛屽鏋滄湁澶氫釜Cookie锛屼腑闂寸敤";"闅斿紑銆傚涓嬮潰鐨凥TTP璇鋒眰澶存墍绀猴細
聽
GET /test/First.jsp HTTP/1.1
HOST:localhost
...
Cookie:key1=value1;key2=value2
...
...
聽聽聽聽鎴戜滑鍙互鍦↗SP涓嬌鐢ㄥ涓嬬殑Java浠ｇ爜鏉ヨ緭鍑篊ookie瀛楁鐨勫?鹼細
聽聽聽聽 out.println(request.getHeader("Cookie"));
聽
濡傛灉鍦⊿ervlet涓緭鍑猴紝蹇呴』寰椾嬌鐢ㄥ涓嬭鍙ュ緱鍒皁ut锛屾墠鑳藉悜瀹㈡埛绔祻瑙堝櫒杈撳嚭鏁版嵁锛?
聽聽聽聽聽聽 PrintWriter out = response.getWriter();
聽聽聽聽铏界劧姘鎬箙Cookie鍜屼複鏃禖ookie鍦ㄧ浜屾鍚戞湇鍔＄鍙戝嚭HTTP璇鋒眰鏃剁敓鎴怌ookie瀛楁锛屼絾瀹冧滑杩樻槸鏈変竴瀹氱殑鍖哄埆鐨勩?傛案涔匔ookie鍦ㄤ換鎰忔柊寮?鍚殑IE绐楀彛閮藉彲浠ョ敓鎴怌ookie銆傝?屼複鏃禖ookie鐢變簬鍙繚瀛樺湪褰撳墠IE绐楀彛锛屽洜姝わ紝鍦ㄦ柊寮?鍚殑IE绐楀彛锛屾槸涓嶈兘鐢熸垚Cookie瀛楁鐨勶紝涔熷氨鏄锛屾柊绐楀彛鍜屾棫绐楀彛鏄笉鑳藉叡浜複鏃禖ookie鐨勩?備嬌鐢ㄩ噸瀹氬悜鏈哄埗寮瑰嚭鐨勬柊绐楀彛涔熸棤娉曞拰鏃х獥鍙ｅ叡浜複鏃禖ookie銆備絾鍦ㄥ悓涓?涓獥鍙ｅ彲浠ャ?傚鍦ㄤ竴涓狪E绐楀彛杈撳叆http://localhost:8080/test/first.jsp锛屽悜鍐呭瓨鍐欏叆涓?涓複鏃禖ookie鍚庯紝鍦ㄥ悓涓?涓狪E绐楀彛杈撳叆http://localhost:8080/test/second.jsp锛屾祻瑙堝櫒鍦ㄥ悜鏈嶅姟绔彂閫丠TTP璇鋒眰鏃訛紝鑷姩灏嗗綋鍓嶆祻瑙堝櫒鐨勪複鏃禖ookie(涔熷氨鏄痜irst.jsp鎵?鍒涘緩鐨凜ookie)鍜屾案涔匔ookie浣滀負HTTP璇鋒眰澶寸殑Cookie瀛楁鍊煎彂閫佺粰鏈嶅姟绔?備絾鏄鏋滄柊鍚竴涓狪E绐楀彛锛岀敱浜庢柊IE绐楀彛娌℃湁杩欎釜涓存椂Cookie锛屽洜姝わ紝second.jsp鍙彂閫佷簡淇濆瓨鍦ㄧ‖鐩樹笂鐨勬案涔匔ookie銆?
聽
浜屻?乀omcat涓殑Servlet鍜孲ession
聽聽聽聽鐢變簬Cookie鏁闆瓨鍦ㄤ繚瀛樺湪瀹㈡埛绔紝杩欐牱瀵逛簬涓?浜涙晱鎰熸暟鎹細甯︽潵涓?浜涢闄┿?傝?屼笖Cookie涓?鑸彧鑳戒繚瀛樺瓧绗︿覆绛夌畝鍗曟暟鎹?傚苟涓斿ぇ灏忛檺鍒跺湪4KB銆傚鏋滆淇濆瓨姣旇緝澶嶆潅鐨勬暟鎹紝Cookie鍙兘鏄懼緱鏈変簺涓嶅悎閫傘?傚熀浜庤繖浜涘師鍥狅紝鎴戜滑鑷劧浼氭兂鍒闆湪鏈嶅姟绔噰鐢ㄨ繖绉嶇被浼糃ookie鐨勬満鍒舵潵瀛樺偍鏁版嵁銆傝繖灏辨槸鎴戜滑杩欒妭瑕佽鐨勪細璇?Session)銆傝?屽湪涓?涓鎴風鍜屾湇鍔＄鐨勪細璇濅腑鎵?鏈夌殑椤甸潰鍙互鍏變韓涓鴻繖涓細璇濇墍寤虹珛鐨凷ession銆?
聽聽聽聽閭ｄ箞浠?涔堟槸浼氳瘽鍛紵鏈夊緢澶氫漢璁や負浼氳瘽灏辨槸鍦ㄤ竴鍙版満鍣ㄤ笂瀹㈡埛绔祻瑙堝櫒璁塊棶鏌愪釜鍩熷悕鎵?鎸囧悜鐨勬湇鍔＄绋嬪簭锛屽氨寤虹珛浜嗕竴涓鎴風鍒版湇鍔＄鐨勪細璇濄?傜劧鍚庡叧闂鎴風娴忚鍣紝浼氳瘽灏辯粨鏉熴?傚叾瀹炶繖骞朵笉鍑嗙‘銆?
聽聽聽聽棣栧厛璁╂垜浠厛鏉ョ湅鐪婼ession鐨勫師鐞嗐?係ession鍜孋ookie绫諱技銆傛墍涓嶅悓鐨勬槸瀹冩槸寤虹珛鍦ㄦ湇鍔＄鐨勫璞°?傛瘡涓?涓猄ession瀵矽薄涓?涓細璇濄?備篃璁稿緢澶氳鑰呯湅鍒拌繖浼氭湁涓?涓枒闂?係ession鏄浣曞悓瀹㈡埛绔仈绯誨湪涓?璧風殑鍛紵寰堝浜哄湪浣跨敤Session鏃跺苟娌℃湁鎰熻鍒拌繖涓?鐐廣?傚叾瀹炶繖涓?鍒囬兘鏄疻eb鏈嶅姟鍣紝濡俆omcat涓?鎵嬪寘鍔炵殑銆傞偅涔圵eb鏈嶅姟鍣ㄥ張鏄浣曡瘑鍒?氳繃HTTP鍗忚杩涜杩炴帴鐨勫鎴風鐨勫憿锛熻繖灏辮鐢ㄥ埌绗竴鑺備腑鎵?璁茬殑Cookie銆傚湪涓?鑸儏鍐典笅锛孲ession浣跨敤浜嗕複鏃禖ookie鏉ヨ瘑鍒煇涓?涓猄ession鏄惁灞炰簬鏌愪竴涓細璇濄?傚湪鏈枃涓互Tomcat涓轟緥鏉ヨ鏄嶴ession鏄浣曞伐浣滅殑銆?
聽聽聽聽璁╂垜浠厛鍋囪鏌愪竴涓鎴風绗竴娆¤闂竴涓猄ervlet锛屽湪杩欎釜Servlet涓嬌鐢ㄤ簡getSession鏉ュ緱鍒頒竴涓猄ession瀵矽薄锛屼篃灏辨槸寤虹珛浜嗕竴涓細璇濓紝杩欎釜Servlet鐨勪唬鐮佸涓嬶細
import java.io.*; import javax.servlet.ServletException; import javax.servlet.http.*; public class First extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); HttpSession session = request.getSession(); session.setAttribute("key", "mySessionValue"); PrintWriter out = response.getWriter(); out.println("The session has been generated!"); out.flush(); out.close(); } } 聽 瀵逛簬鏈嶅姟绔殑First鏉ヨ锛実etSession鏂規硶涓昏鍋氫簡涓や歡浜嬶細
聽聽聽 1.聽浠庡鎴風鐨凥TTP璇鋒眰澶寸殑Cookie瀛楁涓幏寰椾竴涓鎵句竴涓狫SESSIONID鐨刱ey锛岃繖涓猭ey鐨勫?兼槸涓?涓敮涓?瀛楃涓詫紝绫諱技浜嶥5A5C79F3C8E8653BC8B4F0860BFDBCD聽銆?
聽聽聽聽
2.聽濡傛灉Cookie涓寘鍚繖涓狫SESSIONID锛屽皢key鐨勫?煎彇鍑猴紝鍦═omcat鐨凷ession Map锛堢敤浜庝繚瀛楾omcat鑷惎鍔ㄤ互鏉ョ殑鎵?鏈夊垱寤虹殑Session锛変腑鏌ユ壘锛屽鏋滄壘鍒幫紝灏嗚繖涓猄ession鍙栧嚭锛屽鏋滄湭鎵懼埌锛屽垱寤轟竴涓狧ttpSession瀵矽薄锛屽苟淇濆瓨鍦⊿ession Map涓紝浠ヤ究涓嬩竴娆′嬌鐢ㄨ繖涓狵ey鏉ヨ幏寰楄繖涓猄ession銆?
聽
鍦ㄦ湇鍔″櫒鍚戝鎴風鍙戦?佸搷搴斾俊鎭椂锛屽鏋滄槸鏂闆垱寤虹殑HttpSession瀵矽薄锛屽湪鍝嶅簲HTTP
澶翠腑鍔犱簡涓?涓猄et-Cookie瀛楁锛屽苟灏咼SESSIONID鍜岀浉搴旂殑鍊煎弽鍥炵粰瀹㈡埛绔?傚涓嬮潰鐨凥TTP鍝嶅簲澶達細
聽
HTTP/1.1 200 OK
...
Set-Cookie: JSESSIONID=D5A5C79F3C8E8653BC8B4F0860BFDBCD
...
聽聽聽聽瀵逛簬瀹㈡埛绔祻瑙堝櫒鏉ヨ锛屽苟涓嶈璇嗗摢涓狢ookie鏄敤浜嶴ession鐨勶紝瀹冨彧鏄皢鐩稿簲鐨勪複鏃禖ookie鍜屾案涔匔ookie鍘熷皝涓嶅姩鍦版斁鍒拌姹侶TTP澶寸殑Cookie瀛楁涓紝鍙戦?佺粰鏈嶅姟鍣ㄣ?傚鏋滃湪IE涓娆¤闂湇鍔＄鐨凢irst锛岃繖鏃跺湪褰撳墠IE绐楀彛骞舵病鏈変複鏃禖ookie锛屽洜姝わ紝鍦ㄨ姹侶TTP澶翠腑灏辨病鏈塁ookie瀛楁锛屾墍浠irst鍦ㄨ皟鐢╣etSession鏂規硶鏃跺氨鏈壘鍒癑SESSIONID锛屽洜姝わ紝灏變細鏂闆緩涓?涓狧ttpSession瀵矽薄銆傚苟鍦⊿et-Cookie涓皢杩欎釜JSESSIONID杩斿洖銆傛帴涓嬫潵鎴戜滑浣跨敤鍙﹀涓?涓猄ervlet锛歋econd鏉ヨ幏寰楀湪First涓墍璁劇疆鐨凷ession鏁版嵁銆係econd鐨勪唬鐮佸涓嬶細
import java.io.*; import javax.servlet.ServletException; import javax.servlet.http.*; public class Second extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); HttpSession session = request.getSession(); PrintWriter out = response.getWriter(); out.println(session.getAttribute("key")); out.flush(); out.close(); } } 聽 聽聽聽聽聽濡傛灉鍦ㄥ悓涓?涓獥鍙ｆ潵璋冪敤Second銆傝繖鏃跺鎴風宸茬粡鏈変簡涓?涓複鏃禖ookie锛屽氨鏄疛SESSIONID锛屽洜姝わ紝浼氬皢杩欎釜Cookie鏀懼埌HTTP澶寸殑Cookie瀛楁涓彂閫佺粰鏈嶅姟绔?傛湇鍔＄鍦ㄦ敹鍒拌繖涓狧TTP璇鋒眰鏃跺氨鍙互浠嶤ookie涓緱鍒癑SESSIONID鐨勫?鹼紝骞朵粠Session Map涓壘鍒拌繖涓猄ession瀵矽薄锛屼篃灏辨槸getSession鏂規硶鐨勮繑鍥炲?箋?傚洜姝わ紝浠庢妧鏈眰闈笂鏉ヨ锛屾墍鏈夋嫢鏈夊悓涓?涓猄ession ID鐨勯〉闈㈤兘搴旇灞炰簬鍚屼竴涓細璇濄??
聽聽聽聽濡傛灉鎴戜滑鍦ㄤ竴涓柊鐨処E绐楀彛璋冪敤Second锛屽苟涓嶄細寰楀埌mySessionValue銆傚洜涓鴻繖鏃禨econd鍜孎irst鎷ユ湁浜嗕笉鍚岀殑Session ID锛屽洜姝わ紝瀹冧滑骞朵笉灞炰簬鍚屼竴涓細璇濄?傝鍒拌繖锛屼篃璁稿緢澶氳鑰呯溂鍓嶄竴浜?傛棦鐒舵嫢鏈夊悓涓?涓猄ession ID锛屽氨鍙互鍏變韓Session瀵矽薄锛岄偅涔堟垜浠彲涓嶅彲浠ヤ嬌鐢ㄦ案涔匔ookie灏嗚繖涓猄ession ID淇濆瓨鍦–ookie鏂囦歡涓紝杩欐牱灏辯畻鍦ㄦ柊鐨処E绐楀彛锛屼篃鍙互鍏變韓Session瀵矽薄浜嗐?傜瓟妗堟槸鑲畾鐨勩?備笅闈㈡槸鏂扮殑First浠ｇ爜锛?
聽
import java.io.*; import javax.servlet.ServletException; import javax.servlet.http.*; public class First extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); HttpSession session = request.getSession(); session.setMaxInactiveInterval(3600); Cookie cookie = new Cookie("JSESSIONID", session.getId()); cookie.setMaxAge(3600); response.addCookie(cookie); session.setAttribute("key", "mySessionValue"); PrintWriter out = response.getWriter(); out.println("The session has been generated!"); out.flush(); out.close(); } } 聽 鍦ㄤ笂闈㈢殑浠ｇ爜涓嬌鐢ㄤ簡Cookie瀵矽薄灏咼SESSIONID鍐欏叆浜咰ookie鏂囦歡锛屽苟浣跨敤setMaxAge鏂規硶灏咰ookie瓒呮椂鏃堕棿璁句負3600绉掞紙1灏忔椂锛夈?傝繖鏍峰彧瑕佽闂繃First锛屼粠璁塊棶鏃堕棿绠楄搗锛屽湪1灏忔椂涔嬪唴锛屽湪鏈満鐨勪換浣旾E绐楀彛璋冪敤Second閮戒細寰楀埌"mySessionValue"瀛楃涓層??
聽
涓変笁銆乀omcat涓殑JSP鍜孲ession
聽聽聽聽浠庢湰璐ㄤ笂璁詫紝JSP鍦ㄨ繍琛屾椂宸茬粡琚紪璇戞垚鐩稿簲鐨凷ervlet浜嗭紝鍥犳锛屽湪JSP鍜孲ervlet涓璖ession鐨勪嬌鐢ㄦ柟娉曞簲璇ュ樊涓嶅銆備絾杩樻槸鏈変竴浜涚粏灏忕殑宸埆銆?
聽聽聽聽濡傛灉鎴戜滑浣跨敤杩嘕SP灏變細鍙戠幇锛屽湪JSP涓緢澶氬璞℃槸涓嶉渶瑕佸垱寤虹殑锛屽out銆乻ession绛夈?傚畠浠彲浠ョ洿鎺ヤ嬌鐢ㄣ?傚涓嬮潰鐨凧SP浠ｇ爜鎵?绀猴細
<!-- MyJSP.jsp -->
<%@ page聽language="java"聽contentType="text/html; charset=GB18030"
聽聽聽聽pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
聽聽聽聽<head>
聽聽聽聽聽聽聽聽<meta聽http-equiv="Content-Type"聽content="text/html; charset=GB18030">
聽聽聽聽聽聽聽聽<title>Insert title here</title>
聽聽聽聽</head>
聽聽聽聽<body>
聽聽聽聽聽聽聽聽<%
out.println(session.getId());
%>
聽聽聽聽</body>
</html>
聽
聽聽聽聽鍦ㄤ笂闈㈢殑JSP浠ｇ爜涓洿鎺ヤ嬌鐢ㄤ簡out鍜宻ession銆傝?屽苟涓嶈薄Servlet閲屼竴鏍風敤get鏂規硶鏉ヨ幏寰楃浉搴旂殑瀵矽薄瀹炰緥銆傞偅涔堣繖鏄負浠?涔堝憿锛?
聽聽聽聽鐢變簬JSP鍦ㄧ涓?娆¤繍琛屾椂鏄缂栬瘧鎴怱ervlet鐨勶紝鎴戜滑鑷劧灏變細鎯沖埌鏈夊彲鑳芥槸鍦ㄧ紪璇慗SP鏃惰嚜鍔ㄥ垱寤轟簡session鍜宱ut瀵矽薄銆備笅闈㈡垜浠氨鏉ラ獙璇佽繖涓?鐐廣?傞鍏堥渶瑕佹煡鐪嬩竴涓婮SP琚紪璇戞垚Servlet鍚庣殑婧愪唬鐮併?傝繖闈炲父绠?鍗曪紝濡傛灉鎴戜滑浣跨敤鐨勬槸Tomcat锛屽彧闇?瑕佸湪Tomcat鐨勫畨瑁呯洰褰曚腑鐨剋ork涓壘鐩稿簲鐨勬簮绋嬪簭鍗沖彲銆傚涓?涓悕涓篗yJSP.jsp鐨勬枃浠堕鍏堣缂栬瘧鎴怣yJSP_jsp.java锛堣繖灏辨槸鐢盝SP鐢熸垚鐨凷ervlet婧愮▼搴忔枃浠訛級锛岀劧鍚庡啀鐢眏ava灏哅yJSP_jsp.java缂栬瘧鎴怣yJSP_jsp.class锛屾渶鍚嶵omcat杩愯鐨勫氨鏄疢yJSP_jsp.class銆傚涓婇潰鐨凧SP绋嬪簭琚紪璇戞垚Servlet鐨勯儴鍒嗘簮浠ｇ爜濡備笅锛?
package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
public聽final聽class聽MyJSP_jsp extends org.apache.jasper.runtime.HttpJspBase
{
... ...
... ...
public聽void聽_jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
PageContext pageContext =聽null;
HttpSession session =聽null;
ServletContext application =聽null;
ServletConfig config =聽null;
JspWriter聽out聽=聽null;
Object page =聽this;
JspWriter _jspx_out =聽null;
PageContext _jspx_page_context =聽null;
try聽{
response.setContentType("text/html; charset=GB18030");
pageContext = _jspxFactory.getPageContext(this, request, response,
null,聽true, 8192,聽true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out聽= pageContext.getOut();
_jspx_out =聽out;
out.write("\r\n");
out.write("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\r\n");
out.write("<html>\r\n");
out.write("\t<head>\r\n");
out.write("\t\t<meta http-equiv=\"Content-Type\" content=\"text/html; charset=GB18030\">\r\n");
out.write("\t\t<title>Insert title here</title>\r\n");
out.write("\t</head>\r\n");
out.write("\t<body>\r\n");
out.write("\t\t");
out.println(session.getId());
out.write("\r\n");
out.write("\r\n");
out.write("\t</body>\r\n");
out.write("</html>");
}聽catch聽(Throwable t) {
if聽(!(t instanceof SkipPageException)){
out聽= _jspx_out;
if聽(out聽!=聽null聽&&聽out.getBufferSize() != 0)
try聽{聽out.clearBuffer(); }聽catch聽(java.io.IOException e) {}
if聽(_jspx_page_context !=聽null) _jspx_page_context.handlePageException(t);
}
}聽finally聽{
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
聽
聽聽聽聽鎴戜滑鍙互鐪嬪埌涓婇潰鐨勪唬鐮佷腑鐨刜jspService鏂規硶绫諱技浜嶩ttpServlet涓殑service鏂規硶锛屽湪鏂規硶鐨勫紑濮嬮儴鍒嗛鍏堝緩绔嬩簡session銆乤pplication銆乷ut绛夊璞″疄渚嬨?傜劧鍚庡皢MyJSP.jsp涓殑HTML閫氳繃out杈撳嚭鍒闆鎴風銆傛垜浠娉ㄦ剰涓婇潰鐨勯粦浣撳瓧鐨勮鍙ワ細out.println(session.getId());锛孞SP缂栬瘧鍣ㄨ嚜鍔ㄥ皢JSP涓殑<% ... %>涓寘鍚殑Java浠ｇ爜鍘熷皝涓嶅姩鍦版彃鍏ュ埌_jspService涓?傜敱浜庢槸鍦ㄥ垱寤哄璞″疄渚嬪悗鎻掑叆锛屽洜姝わ紝灏卞彲浠ョ洿鎺ヤ嬌鐢╯ession銆乷ut绛夊璞′簡銆?
聽聽聽聽濡傛灉鎴戜滑鎯沖仛杩涗竴姝ョ殑瀹為獙锛屽彲浠ョ洿鎺ヤ嬌鐢╦avac鏉ョ紪璇慚yJSP_jsp.java锛屼負浜嗘柟渚垮叾闂達紝棣栧厛寤虹珛涓?涓猚.cmd鏂囦歡锛屽畠鐨勫唴瀹瑰涓嬶細
聽
javac -classpath
D:\tools\apache-tomcat-6.0.13\lib\servlet-api.jar;D:\tools\apache-tomcat-6.0.13\lib\jsp-api.jar;D:\tools\apache-tomcat-6.0.13\lib\annotations-api.jar;D:\tools\apache-tomcat-6.0.13\lib\catalina.jar;D:\tools\apache-tomcat-6.0.13\lib\jasper.jar;D:\tools\apache-tomcat-6.0.13\lib\el-api.jar %1
聽聽聽聽鍏朵腑D:\tools\apache-tomcat-6.0.13鏄痶omcat鐨勫畨瑁呯洰褰曪紝璇昏?呭彲浠ュ皢鍏惰涓鴻嚜宸辯殑鏈哄櫒涓婄殑tomcat瀹夎鐩綍
聽聽聽聽鍦ㄧ紪璇戞椂鍙洿鎺ヤ嬌鐢╟聽 MyJSP_jsp.java杩涜缂栬瘧锛岃繖鏃秚omcat灏辯洿鎺ヨ繍琛屾垜浠紪璇戠敓鎴愮殑MyJSP_jsp.class浜嗐??
聽聽聽聽浠庝笂闈㈢殑浠ｇ爜鎴戜滑杩樺彲浠ヤ簡瑙ｄ竴鐐癸紝鍦↗SP鏃犺浣跨敤杩樻槸涓嶄嬌鐢╯ession锛岄兘浼氫嬌鐢╣etSession鏂規硶鍒涘緩涓?涓猄ession瀵矽薄锛岃?孲ervlet蹇呴』鏄懼紡鍦拌皟鐢ㄦ墠浼氬緩绔婼ession瀵矽薄銆?
娉細閫氳繃鐩存帴缂栬瘧java鏂囦歡杩愯jsp锛岄渶瑕佹竻闄や竴涓媡omcat鐨勭紦瀛橈紝涓?鑸渶瑕侀噸鍚竴涓媡omcat銆?
聽
鍥涖?侀殢蹇冩墍娆蹭嬌鐢⊿ession
(1)聽浣跨敤url浼犻?抯ession id
聽聽聽聽鍦ㄤ笂闈㈣杩囷紝鍦ㄩ粯璁ゆ儏鍐典笅session鏄緷闈犲鎴風鐨刢ookie鏉ュ疄鐜扮殑銆備絾濡傛灉瀹㈡埛绔祻瑙堝櫒涓嶆敮鎸乧ookie鎴栧皢cookie鍔熻兘鍏抽棴锛岄偅灏卞氨鎰忓懗鐫?鏃犳硶閫氳繃cookie鏉ュ疄鐜皊ession浜嗐?傚湪杩欑鎯呭喌涓嬶紝鎴戜滑杩樺彲浠ユ湁鍙︿竴绉嶉?夋嫨锛屽氨鏄?氳繃url鏉ヤ紶閫抯ession id銆?
聽聽聽聽瀵逛簬Tomcat鏉ヨ锛岄渶瑕佷嬌鐢╦sessionid浣滀負key鏉ヤ紶閫抯ession id銆備絾鍏蜂綋濡備綍浼犲憿锛熷彲鑳芥湁寰堝浜鴻涓轟細鏄涓嬬殑鏍煎紡锛?
http://localhost:8080/test/MyJSP.jsp?jsessionid= D5A5C79F3C8E8653BC8B4F0860BFDBCD
聽聽聽聽浣嗗疄楠屼笂闈㈢殑url骞朵笉濂戒嬌銆傚叾瀹炴渶鐩存帴鐨勬柟娉曟垜浠彲浠ョ湅涓?涓婽omcat鐨勬簮绋嬪簭鏄浣曞啓鐨勶紝棣栧厛涓嬭澆tomcat鐨勬簮绋嬪簭锛岀劧鍚庢壘鍒癈oyoteAdapter.java鏂囦歡锛屽苟鎵撳紑銆傚湪鍏朵腑鎵懼埌parseSessionId鏂規硶锛岃繖涓柟娉曟槸鐢ㄦ潵浠巙rl涓彁鍙朣ession id鐨勩?傛垜浠彲浠ヤ笉蹇呬簡瑙ｈ繖涓柟娉曠殑鍏ㄩ儴浠ｇ爜锛屽彧鐪嬩竴涓嬪紑澶村氨鍙互銆備唬鐮佺墖娈靛涓嬶細
聽聽聽聽 ByteChunk uriBC = req.requestURI().getByteChunk();
聽聽聽聽 int semicolon = uriBC.indexOf(match, 0, match.length(), 0);
聽聽聽聽 if (semicolon > 0) {...}
聽聽聽聽涓婇潰浠ｇ爜涓殑uriBC灏辨槸璇鋒眰鐨剈rl锛岀浜岃鍦ㄨ繖涓猽rl涓煡鎵緈atch瀛楃涓詫紝鍐嶅湪CoyoteAdapter.java涓煡鎵句竴涓猰atch瀛楃涓詫紝match鍙橀噺鐨勫垵鍊煎涓嬶細
聽聽聽 private static final String match =
聽聽聽聽聽聽聽 ";" + Globals. SESSION_PARAMETER_NAME + "=";
聽聽聽聽浠庝笂闈唬鐮佸彲浠ョ湅鍑猴紝match寮?澶存槸涓?涓?;"瀛楃锛岃?孲ESSION_PARAMETER_NAME鏄竴涓父閲忥紝鍊煎氨鏄?jsessionid"锛屽洜姝ゅ彲浠ユ柇瀹氾紝MyJSP.jsp鍚庤窡鐨勬槸";"锛屽苟涓嶆槸"?"锛屽洜姝わ紝姝ｇ‘鐨剈rl濡備笅锛?
聽
http://localhost:8080/test/MyJSP.jsp;jsessionid= D5A5C79F3C8E8653BC8B4F0860BFDBCD
聽聽聽聽閫氳繃浣跨敤涓婅堪鏂規硶鐢氳嚦鍙互鍦ㄤ笉鍚岀殑鏈哄櫒涓婅幏寰楀悓涓?涓猻ession瀵矽薄銆?
聽聽聽聽鍦–oyoteAdapter.java鏂囦歡涓繕鏈変竴涓猵arseSessionCookiesId鏂規硶锛岃繖涓柟娉曞皢浠嶩TTP璇鋒眰澶翠腑鎻愬彇session id銆傛垜浠腑postParseRequest鏂規硶涓彲浠ョ湅鍒闆皢璋冪敤鐨刾arseSessionId鏂規硶锛屽湪鏈?鍚庤皟鐢ㄤ簡parseSessionCookiesId鏂規硶锛屽洜姝わ紝鎴戜滑鍙互鏂畾锛宼omcat灏嗚?冭檻url涓殑session id锛岀劧鍚庡啀璇誨彇Cookie瀛楁涓殑session id銆傝繕鏈夊氨鏄湪postParseRequest鏂規硶鐨勬渶鍚庨儴鍒嗘湁涓?涓猺esponse.sendRedirect(redirectPath);锛屽湪璋冨畬瀹冨悗锛屽氨鐩存帴return浜嗐?傝?屾病鏈夋墽琛屽埌parseSessionCookiesId锛屽洜姝わ紝浣跨敤閲嶅畾鍚戝苟涓嶈兘閫氳繃HTTP澶寸殑cookie瀛楁鍏變韓session銆傚彧鑳介?氳繃url鏉ヤ紶閫抯ession id銆?
(2)聽灏唗omcat鐨刢ookie鏀寔鍏抽棴
濡傛灉鎴戜滑鍙兂浣跨敤url鏉ユ敮鎸乻ession锛屽彲浠ョ洿鎺ュ皢tomcat鐨刢ookie鍔熻兘鍏抽棴銆傛垜浠彲
浠ヤ慨鏀筩onf涓殑context.xml鏂囦歡锛屽姞鍏ヤ竴涓猚ookies="false"鍗沖彲锛屽唴瀹瑰涓嬶細
<!-- The contents of this file will be loaded for each web application -->
<Context cookies = "false">
... ...
... ...
</Context>
聽聽聽聽閲嶅惎tomcat鍚庯紝灏辯畻瀹㈡埛绔敮鎸乧ookie锛宼omcat涔熶笉浼氳?冭檻HTT
![cron 表達式解讀[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)