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		<span id="e88ii84"    class="postbody">鎽橀�夎嚜錛歫avaeye<br />浣滆�吢犅?聽錛歳obbin <br /><br /><br />鍦?struts+ hibernate 榪欑緇撴瀯涓紝鏄笉搴旇鎶奌ibernate浜х敓鐨凱O鐩存帴浼犻�掔粰JSP鐨勶紝涓嶇浠栨槸Iterator錛岃繕鏄疞ist錛岃繖鏄竴涓璁￠敊璇�?<br /><br />鎴戞潵璋堣皥鍦↗2EE鏋舵瀯涓悇灞傜殑鏁版嵁琛ㄧず鏂規硶錛?<br /><br />Web灞傜殑鏁版嵁琛ㄧず鏄疐ormBean錛屾暟鎹潵婧愪簬HTML Form POST <br />涓氬姟灞傜殑鏁版嵁琛ㄧず鏄疺O <br />鎸佷箙灞傜殑鏁版嵁琛ㄧず鏄疨O錛屽叾鏁版嵁鏉ユ簮浜庢暟鎹簱錛屾寔涔呭眰鐨勬暟鎹〃紺轟緥濡侰MP <br /><br />鍦ㄤ竴涓鑼冪殑J2EE鏋舵瀯涓紝涓嶅悓灞傜殑鏁版嵁琛ㄧず搴旇琚檺鍒跺湪灞傚唴錛岃�屼笉搴旇鎵╂暎鍒板叾瀹冨眰錛岃繖鏍峰彲浠ラ檷浣庡眰闂寸殑鑰﹀悎鎬э紝鎻愰珮J2EE鏋舵瀯鏁翠綋鐨勫彲緇存姢鎬у拰鍙墿灞曟�с�傛瘮濡傝Web灞傜殑閫昏緫榪涜浜嗕慨鏀癸紝閭ｄ箞鍙渶瑕佷慨鏀笷ormBean鐨勭粨鏋勶紝鑰屼笉闇�瑕佽Е鍔ㄤ笟鍔″眰鍜屾寔涔呭眰鐨勪唬鐮佷慨鏀廣�傚悓鏍鋒淮錛屽綋鏁版嵁搴撹〃榪涜浜嗗皬鐨勮皟鏁達紝閭ｄ箞涔熷彧闇�瑕佷慨鏀規寔涔呭眰鏁版嵁琛ㄧず錛岃�屼笉闇�瑕佽Е鍔ㄤ笟鍔″眰浠ｇ爜鍜學eb灞備唬鐮併�?<br /><br />涓嶈繃鐢變簬Hibernate鐨勫己澶у姛鑳斤紝渚嬪鍔ㄦ�佺敓鎴怭O錛孭O鐨勭姸鎬佺鐞嗗彲浠ヨ劚紱籗ession錛屼嬌寰楀湪搴旂敤浜咹ibernate鐨凧2EE妗嗘灦涓紝PO瀹屽叏鍙互鍏呭綋VO錛屽洜姝ゆ垜浠笅闈㈡妸PO鍜孷O鍚堝茍錛岀粺縐頒負PO銆?<br /><br />鍏堟潵璋堣皥ActionFormBean鍜屾寔涔呭眰鐨凱O涔嬮棿鐨勯噸澶у尯鍒�?<br /><br />鍦ㄧ畝鍗曠殑搴旂敤涓紝ActionFormBean鍜孭O鍑犱箮鏄病鏈夊尯鍒紝鎵�浠ュ緢澶氫漢騫茶剢灝辨槸鐢ˋctionFormBean鏉ュ厖褰揚O錛屼簬鏄疉ctionFormBean浠嶫SP欏甸潰鍒癝ervlet鎺у埗灞傚啀鍒頒笟鍔″眰錛岀劧鍚庣┛榪囨寔涔呭眰錛屾渶鍚庝竴鐩存槧灝勫埌鏁版嵁搴撹〃銆傜湡鏄竴绔垮瓙鎹呭埌浜嗗簳錛?<br /><br />浣嗘槸鍦ㄥ鏉傜殑搴旂敤涓紝ActionFormBean鍜孭O鏄垎紱葷殑錛屼粬浠篃涓嶅彲鑳戒竴鏍楓�侫ctionFormBean鏄拰緗戦〉閲岄潰鐨凢orm琛ㄥ崟涓�涓�瀵瑰簲鐨勶紝Form閲岄潰鏈変粈涔堝厓绱狅紝Bean閲岄潰灝辨湁浠�涔堝睘鎬с�傝�孭O鍜屾暟鎹簱琛ㄥ搴旓紝鍥犳濡傛灉鏁版嵁搴撹〃涓嶄慨鏀癸紝閭ｄ箞PO涔熶笉浼氫慨鏀癸紝濡傛灉欏甸潰鐨勬祦紼嬪拰鏁版嵁搴撹〃瀛楁瀵瑰簲鍏崇郴涓嶄竴鑷達紝閭ｄ箞浣犲張濡備綍鑳藉浣跨敤ActionFormBean鏉ュ彇浠O鍛紵 <br /><br />姣斿璇村惂錛岀敤鎴鋒敞鍐岄〉闈㈣姹傛敞鍐岀敤鎴風殑鍩烘湰淇℃伅錛屽洜姝TML Form閲岄潰鍖呭惈浜嗗熀鏈俊鎭睘鎬э紝浜庢槸浣犻渶瑕佷竴涓狝ctionFormBean鏉ヤ竴涓�瀵瑰簲(娉ㄦ剰錛氭槸涓�涓�瀵瑰簲)錛屾瘡涓狟ean灞炴�у搴斾竴涓枃鏈鎴栬�呴�夋嫨妗嗕粈涔堢殑銆?<br /><br />鑰岀敤鎴瘋繖涓寔涔呭璞″憿錛熶粬鐨勫睘鎬у拰ActionFormBean鏈変粈涔堟槑鏄句笉鍚屽憿錛熶粬浼氭湁涓�浜汚ctionFormBean鎵�娌℃湁鐨勯泦鍚堝睘鎬э紝姣斿璇寸敤鎴風殑鏉冮檺灞炴�э紝鐢ㄦ埛鐨勭粍灞炴�э紝鐢ㄦ埛鐨勫笘瀛愮瓑絳夈�傚彟澶栬繕鏈夊彲鑳界殑鏄湪ActionFormBean閲岄潰鏈?涓睘鎬э紝鍒嗗埆鏄敤鎴風殑First Name, Middle Name, Last Name錛岃�屽湪鎴戠殑User榪欎釜鎸佷箙瀵硅薄涓氨鏄竴涓?Name 瀵硅薄灞炴�с�?<br /><br />鍋囪鎴戠殑娉ㄥ唽欏甸潰鍘熸潵鍙浣犳彁渚汧irst Name錛岄偅涔圓ctionFormBean灝辮繖涓�涓睘鎬э紝鍚庢潵鎴戣浣犳彁渚涘叏鍚嶏紝浣犺鏀笰ctionFormBean錛屽姞涓や釜灞炴�с�備絾鏄繖涓椂鍊橮O鏄笉搴旇淇敼婊達紝鍥犱負鏁版嵁搴撴病鏈夋敼銆?<br /><br />閭ｄ箞鍦ㄤ竴涓畬鏁寸殑J2EE緋葷粺涓簲璇ュ浣曡繘琛屽悎鐞嗙殑璁捐鍛紵 <br /><br />JSP(View) ---&gt; ActionFormBean(Module) ---&gt; Action(Control) <br /><br />ActionFormBean鏄疻eb灞傜殑鏁版嵁琛ㄧず錛屽畠鍜孒TML欏甸潰Form瀵瑰簲錛屽彧瑕乄eb欏甸潰鐨勬搷浣滄祦紼嬪彂鐢熸敼鍙橈紝瀹冨氨瑕佺浉搴旂殑榪涜淇敼錛屽畠涓嶅簲璇ヤ篃涓嶈兘琚紶閫掑埌涓氬姟灞傚拰鎸佷箙灞傦紝鍚﹀垯涓�鏃﹂〉闈慨鏀癸紝浼氫竴鐩寸壍榪炲埌涓氬姟灞傚拰鎸佷箙灞傜殑澶ч潰縐殑浠ｇ爜榪涜淇敼錛屽浜庤蔣浠剁殑鍙淮鎶ゆ�у拰鍙墿灞曟�ц�岃█錛屾槸涓�涓伨闅撅紝Actiont灝辨槸浠栫殑杈圭晫錛屽埌姝や負姝紒 <br /><br />Action(Web Control) ---&gt; Business Bean ---&gt; DAO ---&gt; ORM ---&gt;DB <br /><br />鑰孭O鍒欐槸涓氬姟灞傚拰鎸佷箙灞傜殑鏁版嵁琛ㄧず錛屽畠鍦ㄤ笟鍔″眰鍜屾寔涔呭眰涔嬮棿榪涜嫻佸姩錛屼粬涓嶅簲璇ヤ篃涓嶈兘琚紶閫掑埌Web灞傜殑View涓幓錛岃�孉ctionServlet灝辨槸浠栫殑杈圭晫錛屽埌姝や負姝紒 <br /><br />鐒跺悗鏉ョ湅涓�鐪嬫暣涓灦鏋勭殑嫻佺▼錛?<br /><br />褰撶敤鎴烽�氳繃嫻忚鍣ㄨ闂綉欏碉紝鎻愪氦浜嗕竴涓〉闈€�備簬鏄疉ction鎷垮埌浜嗚繖涓狥ormBean錛屼粬浼氭妸FormBean灞炴�ц鍑烘潵錛岀劧鍚庢瀯閫犱竴涓狿O瀵硅薄錛屽啀璋冪敤涓氬姟灞傜殑Bean綾伙紝瀹屾垚浜嗘敞鍐屾搷浣滐紝閲嶅畾鍚戝埌鎴愬姛欏甸潰銆傝�屼笟鍔″眰Bean鏀跺埌榪欎釜PO瀵硅薄涔嬪悗錛岃皟鐢―AO鎺ュ彛鏂規硶錛岃繘琛屾寔涔呭璞＄殑鎸佷箙鍖栨搷浣溿�?<br /><br />褰撶敤鎴鋒煡璇㈡煇涓細鍛樼殑淇℃伅鐨勬椂鍊欙紝浠栫敤鍏ㄥ悕榪涜鏌ヨ錛屼簬鏄疉ction寰楀埌涓�涓猆serNameFormBean鍖呮嫭浜?涓睘鎬э紝鍒嗗埆鏄痜irst name, middle name, last name錛岀劧鍚嶢ction鎶奤serNameFormBean鐨?涓睘鎬ц鍑烘潵錛屾瀯閫燦ame瀵硅薄錛屽啀璋冪敤涓氬姟Bean錛屾妸Name瀵硅薄浼犻�掔粰涓氬姟Bean錛岃繘琛屾煡璇€�?<br /><br />涓氬姟Bean鍙栧緱Name(娉ㄦ剰: Name瀵硅薄鍙槸User鐨勪竴涓睘鎬?瀵硅薄涔嬪悗璋冪敤DAO鎺ュ彛錛岃繑鍥炰竴涓猆ser鐨凱O瀵硅薄錛屾敞鎰忚繖涓猆ser涓嶅悓浜庡湪Web灞備嬌鐢ㄧ殑UserFormBean錛屼粬鏈夊緢澶氶泦鍚堝睘鎬ф淮銆傜劧鍚庝笟鍔ean鎶奤ser瀵硅薄榪斿洖緇橝ction銆?<br /><br />Action鎷垮埌User涔嬪悗錛屾妸User鐨勫熀鏈睘鎬у彇鍑?闆嗗悎灞炴�у鏋滀笉闇�瑕佸氨鍏嶄簡)錛屾瀯閫燯serFormBean錛岀劧鍚庢妸UserFormBean request.setAttribute(...)錛岀劧鍚庨噸瀹氬悜鍒版煡璇㈢粨鏋滈〉闈€�?<br /><br />鏌ヨ欏甸潰鎷垮埌request瀵硅薄閲岄潰鐨凙ctionFormBean錛岃嚜鍔ㄨ皟鐢╰ag鏄劇ず涔嬨�?<br /><br />鎬葷粨錛?<br /><br />FormBean鏄疻eb灞傜殑鏁版嵁琛ㄧず錛屼粬涓嶈兘琚紶閫掑埌涓氬姟灞傦紱PO鏄寔涔呭眰鐨勬暟鎹〃紺猴紝鍦ㄧ壒瀹氭儏鍐典笅錛屼緥濡侶ibernate涓紝浠栧彲浠ュ彇浠O鍑虹幇鍦ㄤ笟鍔″眰錛屼絾鏄笉綆O榪樻槸VO閮藉繀欏婚檺鍒跺湪涓氬姟灞傚唴浣跨敤錛屾渶澶氬埌杈網eb灞傜殑Control錛岀粷涓嶈兘琚墿鏁ｅ埌View鍘匯�?<br /><br />FormBean鍜孭O涔嬮棿鐨勬暟鎹漿鍖栨槸鍦ˋction涓繘琛屾淮銆?<br /><br />BTW: <br /><br />JDO1.x榪樹笉鑳藉儚Hibernate鍔熻兘榪欐牱寮哄ぇ錛孭O涓嶈兘鑴辯鎸佷箙灞傦紝鎵�浠ュ繀欏誨湪涓氬姟灞備嬌鐢╒O錛屽洜姝ゅ繀欏誨湪涓氬姟灞傝繘琛屽ぇ閲忕殑VO鍜孭O鐨勮漿鍖栨搷浣滐紝鐩稿浜嶩ibernate鏉ヨ錛岀紪紼嬫瘮杈冪儲鐞愩�?<br /><br />褰撶劧鍜紝鐞嗚鏄竴鍥炰簨錛屽疄闄呮搷浣滀篃涓嶄竴瀹氶潪瑕佽繖鏍峰共錛屼綘鍙互鑷鍙栬垗錛屽湪瀹為檯欏圭洰涓伒媧諱竴鐐癸紝澧炲姞涓�鐐筨ad smell錛屾彁楂樺紑鍙戞晥鐜囥�傚彧涓嶈繃鍦ㄥぇ鍨嬮」鐩腑鏈�濂借繕鏄弗涓濆悎緙濓紝涓嶇劧鐨勮瘽錛屾敼鐗堢殑鏃跺�欎細鐥涜嫤鐨勫緢婊淬�?/span>
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