鍘熸枃鍦板潃錛歨ttp://martinfowler.com/bliki/InversionOfControl.html
鍦ㄦ墿灞曟鏋剁殑鏃跺欙紝鎴戜滑甯稿父浼氶亣鍒?#8220;鎺у埗鍙嶈漿”榪欎釜鐜拌薄錛岀‘瀹烇紝瀹冨緢澶氭椂鍊欓兘琚敤鏉ュ畾涔夋鏋剁殑鐗規с?/p>
鐜板湪鎴戜滑鏉ヨ冭檻涓涓畝鍗曠殑渚嬪瓙錛屽亣璁炬垜鍦ㄥ啓涓涓氳繃鍛戒護琛岀殑鏂瑰紡浠庣敤鎴烽偅閲岃幏鍙栦俊鎭殑紼嬪簭錛屾垜鐨勭▼搴忎細榪欐牱鍐欙細
#ruby
puts 'What is your name?'
name = gets
process_name(name)
puts 'What is your quest?'
quest = gets
process_quest(quest)
鍦ㄤ氦浜掔殑榪囩▼涓紝鎴戠殑紼嬪簭澶勪簬鎺у埗鐘舵侊細瀹冨喅瀹氫綍鏃墮棶闂銆佷綍鏃剁粰鍑哄洖搴斻佷綍鏃跺鐞嗙粨鏋溿?/p>
鐒惰岋紝濡傛灉鎴戦氳繃紿楀彛鐨勬柟寮忔潵鍋氾紝閭ｄ箞鎴戜細閫氳繃閰嶇疆紿楀彛鏉ュ疄鐜幫細
require 'tk'
root = TkRoot.new()
name_label = TkLabel.new() {text "What is Your Name?"}
name_label.pack
name = TkEntry.new(root).pack
name.bind("FocusOut") {process_name(name)}
quest_label = TkLabel.new() {text "What is Your Quest?"}
quest_label.pack
quest = TkEntry.new(root).pack
quest.bind("FocusOut") {process_quest(quest)}
Tk.mainloop()
鍦ㄦ帶鍒舵祦紼嬩笂錛岃繖涓や釜紼嬪簭鏈夊緢澶х殑涓嶅悓錛屽挨鍏跺湪鎺у埗鏂規硶 process_name 鍜?process_quest 鐨勮皟鐢ㄤ笂銆傚湪鍛戒護琛岀殑褰㈠紡涓紝鎴戠殑紼嬪簭鍐沖畾浣曟椂璋冪敤榪欎簺鏂規硶錛涜屽湪浣跨敤紿楀彛鐨勪緥瀛愪腑錛屽垯涓嶆槸鐢辨垜鐨勭▼搴忔潵鍐沖畾錛屾垜鎶婃帶鍒朵氦緇欎簡紿楀彛緋葷粺錛堥氳繃 Tk.mainloop 鍛戒護錛夈傜獥鍙ｇ郴緇熷熀浜庢垜鍦ㄥ垱寤虹獥鍙ｆ椂鎵浣滅殑緇戝畾鏉ュ喅瀹氫綍鏃惰皟鐢ㄩ偅浜涙柟娉曪紝鎵浠ユ帶鍒惰鍙嶈漿浜嗏斾笉鏄湁鎴戠殑紼嬪簭鏉ヨ皟鐢ㄧ獥鍙ｏ紝鑰屾槸鐢辯獥鍙ｆ潵璋冪敤鎴戠殑紼嬪簭鈥旇繖涓幇璞″氨鍙仛“鎺у埗鍙嶈漿”銆?/p>
妗嗘灦鐨勪竴涓緢閲嶈鐨勭壒鎬у氨鏄紝鐢ㄦ埛瀹氫箟鏂規硶甯稿父鐢辨鏋惰嚜韜潵璋冪敤錛岃屼笉鏄敱鐢ㄦ埛鐨勪唬鐮佹潵璋冪敤銆傛鏋跺父甯告壆婕斾富紼嬪簭鐨勮鑹叉潵鍗忚皟搴旂敤紼嬪簭鐨勬椿鍔ㄣ傝繖縐嶆帶鍒跺弽杞槸妗嗘灦鎴愪負涓涓己澶х殑鍙互鎵╁睍鐨勯鏋躲傜敤鎴鋒彁渚涚殑鏂規硶瀵規鏋舵彁渚涚殑涓鑸х畻娉曡繘琛岃鍓潵鎻愪緵鏇寸壒孌婄殑搴旂敤銆?/span>--Ralph Johnson and Brian Foote
鎺у埗鍙嶈漿鏄嬌妗嗘灦涓嶅悓浜庡簱鐨勪竴涓叧閿殑閮ㄥ垎銆傚簱鍦ㄦ湰璐ㄤ笂鏄竴緋誨垪浣犲彲浠ヨ皟鐢ㄧ殑鏂規硶錛岀幇鍦ㄤ竴鑸粍緇囨垚綾葷殑褰㈠紡錛屾瘡嬈¤皟鐢ㄩ兘浼氬畬鎴愪竴浜涘伐浣滐紝鐒跺悗灝嗘帶鍒舵潈榪斿洖緇欒皟鐢ㄨ呫?/span>
妗嗘灦鍐呴儴宓屽浜嗕竴浜涙娊璞＄殑璁捐錛屾湁寰堝鍐呭緩琛ㄧ幇銆備負浜嗕嬌鐢ㄥ畠錛屼綘闇瑕侀氳繃緇ф壙鎴栬呮彃浠剁殑鏂瑰紡灝嗕綘鐨勭▼搴忔彃鍏ュ埌妗嗘灦鐨勪竴浜涗綅緗紝鐒跺悗妗嗘灦浼氬湪榪欎簺鍦版柟璋冪敤浣犵殑浠ｇ爜銆?/span>
鏈夊縐嶆柟娉曞悜妗嗘灦鎻掑叆浣犻渶瑕佽璋冪敤鐨勪唬鐮併傚湪涓婇潰鐨勪緥瀛愪腑錛屾垜浠氳繃鍦ㄥ湪鏂囨湰妗嗕笂璋冪敤 bind 鏂規硶錛屽悓鏃跺皢娑堟伅鍚嶇О浣滀負鍙傛暟浼犵粰瀹冿紝鍚庨潰鍐嶈窡涓涓敤“{}”鎷搗鏉ョ殑鏂規硶錛屾潵鍚戞鏋舵彃鍏ヤ唬鐮併傚綋鏂囨湰妗嗘嫻嬪埌涓涓秷鎭殑鏃跺欙紝灝變細璋冪敤鍦?#8220;{}”涓殑鏂規硶銆備嬌鐢?#8220;{}”鏄竴涓緢鏂逛究鐨勬柟寮忥紝浣嗘槸寰堝緙栫▼璇█閮戒笉鏀寔榪欎腑鏂瑰紡銆?/span>
鍙︿竴縐嶆柟娉曟槸妗嗘灦瀹氫箟涓浜涙秷鎭紝鐒跺悗鍦ㄧ敤鎴蜂唬鐮佷腑娉ㄥ唽榪欎簺娑堟伅銆?NET灝辨槸榪欐牱涓涓鉤鍙幫紝瀹冨湪璇█鏂歸潰鎷ユ湁榪欐牱鐨勭壒鎬э紝鍙互璁╃敤鎴峰湪紿楀彛涓婂畾涔変竴浜涙秷鎭紝鐒跺悗鍙互灝嗘柟娉曠粦瀹氬埌榪欎簺娑堟伅涓娿?/span>
涓婇潰鐨勮繖浜涙柟娉曪紙浠栦滑瀹為檯涓婃槸鐩稿悓鐨勶級鍦ㄥ崟涓猚ase涓婇潰宸ヤ綔寰楀緢濂斤紝浣嗘槸鏈夋椂鍊欓渶瑕佸湪鍗曚釜鍗曞厓鎵╁睍涓婇潰緇戝畾澶氫釜鏂規硶鐨勮皟鐢紝鍦ㄨ繖縐嶆儏鍐典笅錛屾鏋跺彲浠ュ畾涔変竴涓帴鍙ｏ紝鐢ㄦ埛浠ｇ爜閫氳繃瀹炵幇榪欎釜鎺ュ彛鏉ュ疄鐜扮浉鍏崇殑璋冪敤銆傦紙榪欐璇濇垜涔熶技鎳傞潪鎳傦級
EJBs鏄繖縐嶅艦寮忕殑鎺у埗鍙嶈漿鐨勪竴涓緢濂界殑渚嬪瓙銆傚綋浣犲湪寮鍙戜竴涓?session bean 鐨勬椂鍊欙紝浣犲彲浠ュ疄鐜板涓湪涓嶅悓鐢熷懡鍛ㄦ湡鐐逛笂琚?EJB 瀹瑰櫒璋冪敤鐨勬柟娉曘備緥濡傦紝涓涓?Session Bean 鎺ュ彛瀹氫箟浜?ejbRemove銆乪jbPassivate鍜宔jbActivate銆備綘涓嶉渶瑕佸叧蹇冭繖浜涙柟娉曚粈涔堟椂鍊欒璋冪敤錛岃屽彧闇瑕佸叧蹇冨畠浠仛浜涗粈涔堛傜敱瀹瑰櫒鏉ヨ皟鐢ㄧ敤鎴風殑紼嬪簭錛岃屼笉鏄敤鎴風殑紼嬪簭鏉ヨ皟鐢ㄥ鍣ㄣ?/span>
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