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]]> - Hibernate澶滄湭鐪?涓?http://m.tkk7.com/improviser/archive/2007/10/07/150764.htmlimproviserimproviserSat, 06 Oct 2007 16:27:00 GMThttp://m.tkk7.com/improviser/archive/2007/10/07/150764.htmlhttp://m.tkk7.com/improviser/comments/150764.htmlhttp://m.tkk7.com/improviser/archive/2007/10/07/150764.html#Feedback1http://m.tkk7.com/improviser/comments/commentRss/150764.htmlhttp://m.tkk7.com/improviser/services/trackbacks/150764.html
聽聽 鎴戠殑
聽聽 H...
聽聽 ibernate鎷鵑敠...
11銆乫ormula灞炴?br />聽聽聽 property鍏冪礌涓殑formula灞炴х敤浜庢寚瀹氫竴涓猄QL琛ㄨ揪寮忥紝鍙皟鐢⊿QL鍑芥暟璐у寘鎷瓙鏌ヨ銆?br />聽聽聽 <property name = "totalPrice" formula = "(select sum(o.price) from ORDERS o where o.CUSTUMER_ID = '1222')"/>
聽聽聽 褰撴煡璇USTOMER瀵硅薄鏃訛紝鎵ц璇彞錛歴elect ID,NAME,(select SUM(O.PRICE) from ORDERS o where o.CUSTOMER_ID = '1222') from CUSTOMERS;
12銆乨ynamic-insert鍜宒ynamic-update
聽聽聽 搴旂敤涓妸class涓璬ynamic-insert鍜宒ynamic-update鍊艱涓簍rue鍙互鎻愰珮鏁堢巼錛屽嵆鎻掑叆鏃朵粎鍖呭惈瀛楁鍙栧間笉涓簄ull鐨勫瓧孌碉紝鏇存柊鏃朵粎鍖呭惈瀛楁鍊煎彂鐢熷彉鍖栫殑灞炴с?/font>
13銆丠ibernate涓璸ackage灞炴?br />聽聽聽 package灞炴х敤浜庢寚瀹氭湰鏄犲皠鏂囦歡涓寘鍚被鐨勫寘鍚嶄負鍏ㄥ眬鍖咃紝浠庤屼笉蹇呬負姣忎釜綾繪寚瀹氬畬鏁村寘鍚嶃?/font>
14銆丱ID
聽聽聽 Hibernate涓敤瀵硅薄鏍囪瘑絎ID鏉ョ淮鎸乯ava瀵硅薄鍜岃〃涓褰曠殑瀵瑰簲鍏崇郴錛孫ID瀹氫箟涓烘暣鏁扮被鍨?short銆乮nt銆乴ong),閫氬父鐢盚ibernate鎴栭氳繃搴曞眰鏁版嵁搴撶粰OID璧嬪箋?/font>
15銆佹爣璇嗙鐢熸垚鍣?br />聽聽聽 Hibernate涓唴緗爣璇嗙鐢熸垚鍣紝鍧囬傚悎浠g悊涓婚敭
聽聽聽 increment錛氱敱Hibernate鑷鐢熸垚
聽聽聽 identity錛氱敱搴曞眰鏁版嵁搴撶敓鎴?br />聽聽聽 sequence錛氬簳灞傛暟鎹簱搴忓垪鐢熸垚
聽聽聽 hilo錛氭牴鎹甴igh/low絳夌畻娉曠敓鎴愪互鐗瑰畾琛ㄥ瓧孌典綔high鍊?br />聽聽聽 native錛氳嚜鍔ㄩ夋嫨identity銆乨equence銆乭ilo
聽聽聽 assgned錛氳嚜鐒朵富閿?灝介噺閬垮厤浣跨敤)
16銆乮nverse灞炴?br />聽聽聽 涓洪伩鍏岺ibernate鍦ㄦ竻鐞嗙紦瀛樻椂瀵圭浉鍏寵仈瀵硅薄閮芥墽琛屾洿鏂版搷浣滐紝灝唅nverse璁劇疆涓簍rue錛屽皢涓繪帶鏉冧氦緇檓any涓鏂癸紝浠ヤ粎鎺amy鏂圭姸鎬佹洿鏂板璞°?/font>
17銆乧ascade灞炴?br />聽聽聽 綰ц仈灞炴э紝褰揷ascade灞炴ц緗負delete錛屽湪鍒犻櫎涓瀵硅薄鏃惰嚜鍔ㄥ垹闄や笌鍏剁駭鑱旂殑瀵硅薄錛屽垹闄ゅ悗鎸佷箙鍖栧璞″彉涓轟復鏃剁姸鎬併?/font>
18銆乻ession娓呯悊緙撳瓨鏃墮棿鐐?br />聽聽聽 a銆乧ommit()鏃跺厛娓呯悊緙撳瓨錛屽啀鍚慏ATABASE鎻愪氦浜嬪姟
聽聽聽 b銆佹墽琛宖ind()鍜宨terate()鏃訛紝紜繚瀵硅薄鏈鏂扮姸鎬侊紙iterate錛堬級鍦℉ibernate 3錛冨凡鍙栨秷錛?br />聽聽聽 c銆佹樉寮忚皟鐢╢lush()鏂規硶鏃?/font>
19銆佹寔涔呭寲瀵硅薄涓夌姸鎬?br />聽聽聽 a銆佷復鏃剁姸鎬侊紝鍒歯ew錛屼笉澶勪簬session緙撳瓨涓?br />聽聽聽 b銆佹寔涔呭寲鐘舵侊紝宸叉寔涔呭寲騫跺姞鍏ession涓?br />聽聽聽 c銆佹父紱葷姸鎬侊紝琚寔涔呭寲錛屼絾涓嶅湪session涓?/font>
20銆乴oad()鍜実et()
聽聽聽 涓よ呴兘鍙互鐢監ID鍔犺澆涓涓寔涔呭寲瀵硅薄錛屽綋DB涓笉瀛樺湪涓嶰ID瀵瑰簲璁板綍鏃訛紝load()鏂規硶浼氭姏鍑哄紓甯革紝鑰実et()浼氳繑鍥濶ull鍊箋?br />
聽 聽 寰呯畫...
錛?font color="#ff3300">杞澆璇鋒敞鏄庡嚭澶?/font>錛?br />

]]> - Hibernate澶滄湭鐪?涓?http://m.tkk7.com/improviser/archive/2007/10/06/150635.htmlimproviserimproviserFri, 05 Oct 2007 19:06:00 GMThttp://m.tkk7.com/improviser/archive/2007/10/06/150635.htmlhttp://m.tkk7.com/improviser/comments/150635.htmlhttp://m.tkk7.com/improviser/archive/2007/10/06/150635.html#Feedback7http://m.tkk7.com/improviser/comments/commentRss/150635.htmlhttp://m.tkk7.com/improviser/services/trackbacks/150635.html聽聽聽 Hibernate鍐湢涔嬫剰錛佷綍鏉ュ鏈湢錛熶綍瑙d箣鏈夛紒錛熸槸鏃跺噷鏅?鐐規潵閽燂紝寰楄В錛?br />
聽聽聽 鎴戠殑...
聽聽聽 H
聽聽聽 ibernate鎷鵑敠...
1銆丱bject Relation Mapping
聽聽 鎸佷箙鍖栫被涓庡叧緋昏〃瀵瑰簲錛屾寔涔呭寲綾誨疄渚嬩笌琛ㄤ腑涓琛岃褰曞搴斻?/font>
2銆丠ibernate鏍稿績鎺ュ彛
聽聽 璁塊棶鏁版嵁搴撴帴鍙o細Session銆乀ransation銆丵uery銆丆riteria
聽聽 閰嶇疆Hibernate鎺ュ彛錛欳onfiguration
聽聽 Configuration --(瀹炰緥鍖栧垱寤?-->SessionFaction--(瀹炰緥鍖?-->Session---->(Qurey/Criteria/Transaction)
3銆丠ibernate浣跨敤姝ラ
聽聽 a銆佸垱寤篐ibernate閰嶇疆鏂囦歡
聽聽 b銆佸垱寤烘寔涔呭寲綾?br />聽聽 c銆佸垱寤哄璞″叧緋繪槧灝勬枃浠?br />聽聽 d銆侀氳繃鎺ュ彛璁塊棶DATABASE
4銆佹寔涔呭寲綾?br />聽聽 琚獺ibernate鎸佷箙鍖栧埌鏁版嵁搴撲腑錛岄氳繃Setter鍜孏etter鏂規硶錛岃嫢涓篵oolean鍨嬪垯鍙敤is*鏂規硶銆侶ibernate涓嶈姹傛寔涔呭寲綾誨繀欏誨疄鐜癝erializable錛屼絾鍦ㄥ垎甯冨紡涓嶅悓緇撶偣闂翠紶杈撴寔涔呭寲綾誨繀欏誨疄鐜癝erializable鎺ュ彛銆?/font>
5銆丠ibernate涓嶦JB
聽聽 Hibernate涓烘櫘閫欽AVA綾伙紝鑰孍JB蹇呴』瀹炵幇EJB鍚勪釜鎺ュ彛錛岃繍琛屼簬瀹瑰櫒涔嬩腑銆?/font>
6銆侀摼緙栫▼椋庢牸(鍒濆鍖?
聽聽 sessionFactory 錛?new Configuration()
聽聽聽聽聽聽聽聽聽聽聽聽聽 .addClass(AAA.class)
聽聽聽聽聽聽聽聽聽聽聽聽聽 .buildSessionFactory();
7銆佹墽琛屾暟鎹簱鎿嶄綔
聽聽 鍒濆鍖栧悗鐢眘essionFactory.openSession()鏂規硶鑾峰緱session瀹炰緥錛屽茍鐢眘ession瀹炰緥鎵ц鏁版嵁搴撴湁鍏蟲搷浣滐紝save()銆乽pdate()銆乨elete()銆乴oad()銆乫ind()銆?/font>
8銆佸睘鎬т綔鐢ㄨ寖鍥?br />聽聽 鍦ㄦ槧灝勬枃浠朵腑鍏冪礌class涓睘鎬cope錛峟ield璁劇疆鍏ㄥ眬灞炴т綔鐢ㄥ煙錛?br />聽聽 鍦ㄦ槧灝勬枃浠朵腑鍏冪礌property涓璼cope錛峟ield璁劇疆涓哄眬閮ㄥ睘鎬т綔鐢ㄨ寖鍥淬?/font>
9銆佹寔涔呭寲綾昏闂柟娉?br />聽聽 鐢ㄦ埛--->搴旂敤紼嬪簭--->Setter()<---Hibernate<---DATABASE
聽聽 鐢ㄦ埛<---搴旂敤紼嬪簭<---Getter()--->Hibernate--->DATABASE
10銆佹寔涔呭寲綾諱腑鍔犲叆紼嬪簭閫昏緫
聽聽 Student綾諱腑鍖呭惈firstName銆乴astName錛孲TUDENT琛ㄤ腑鍙湁NAME瀛楁
聽聽 getName()
聽聽 {
聽聽聽聽聽聽 return firstName+lastName;
聽聽 }
聽聽 setName(String name)
聽聽 {
聽聽聽聽聽聽 firstName = ...;
聽聽聽聽聽聽 lastName聽 = ...;
聽聽 }聽
聽聽 Hibernate鏄犲皠鏂囦歡涓彧闇瑕佹槧灝刵ame鍜孨AME<property name="name" column="NAME"/>,灝卞彲浠ヨ闂畇etName()鍜実etName()鏂規硶錛屼互鏄犲皠鏂囦歡涓哄噯銆?br />
聽聽 寰呯畫...
聽 (杞澆璇鋒敞鏄庡嚭澶?/font>)聽

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