锘??xml version="1.0" encoding="utf-8" standalone="yes"?>
noun:
]]>
2. jvm crash
鍏跺疄榪欎釜鏄痡dk1.3-1.4 GC鐨勬瘺鐥呮媺錛屾垜涓嶇煡閬撳湪5閲岄潰鏈夋病鏈塮ix
鍙ソ鏀筳asper reports鐨勪唬鐮侊紝鎶婄敓鎴愮殑java class鐢╯tatic 鐨凾hreadLocal緇檙eference浣忋?BR>榪欎釜姣涚梾鍦↗asperReports鏂扮増鏈噷闈㈠凡緇廸ix浜?jiǎn)锛屽洜湄?fù)欏圭洰閲屼笉鑳介殢鎰忔崲鐗堟湰鎵浠ョ畻浜?jiǎn)銆?BR>
3. Performance!
8000 Rows X 100 Columns
JasperReports灞呯劧鐢ㄤ簡(jiǎn)10鍒嗛挓鎵峟ill鍜宔xport鍑烘潵錛屾參鍒板嚭濂囬樋錛?BR>榪樻病鏃墮棿鐪嬮偅閲屽嚭鐨勯棶棰橈紝鍙槸鑷繁鍐欎簡(jiǎn)涓畝鍗曠殑engine鏉ユ浛浠c傚洖澶磀ebug榪涘幓錛屾垨鑰呯敤Jprofiler鐪嬬湅鍐呭瓨鎯呭喌銆傘傘傜湡鏄痵hit
鍙﹀錛屾病鏈塲ava doc錛屾枃妗d笉鍏紝code涔熷鏈変笉濂界殑錛宑omments闈炲父宸?BR>
綆鍗曠殑璇達(dá)紝涓嶈閽辯殑涓滆タ鐨勭‘鏄樊浜?jiǎn)鐐?/P>
]]>
鍦∣nV欏圭洰宸茬粡浣滀簡(jiǎn)1騫村浜?jiǎn)锛屾湁浜涙劅瑙﹀Q屽啓涓嬫潵浠ュ浠ュ悗鏁寸悊涔嬬敤銆?BR>濂芥涓嶆璐熻矗Report榪欓噷錛岄昏緫鏃㈠鏉傦紝Performance鐨勮姹傚張闈炲父涔嬮珮錛屼笌閫氬父easy to code鐨凧2EE鍏朵粬妯″潡鏈夊緢澶х殑涓嶅悓銆?BR>
欏圭洰鎶鏈儗鏅細(xì)
OR Mapping Tool:
Hibernate 2.0
Web tier:
Struts 1.2
Report Tool:
Jasper Reports
鏋勬灦娌′粈涔堝ソ璇寸殑錛屽敮涓鐗規(guī)畩鐨勬槸鐢變簬闇姹傜殑鍏崇郴錛屾槸multiple database (features and users涓や釜dimensions涓婄殑multiple)
鍑犵偣閲嶈鐨勭粡楠屾暀璁細(xì)
1. Model Design涓瀹氳濂斤紝欏圭洰涔嬪垵鐢變簬澶у閮芥瘮杈冪己涔忕粡楠岋紝灝ゅ叾鏄竴浜汳odel鐢卞垰姣曚笟鐨刦resh people鏉ュ仛錛屽疄鍦ㄥ悗鏋滀笉鍫鎯熾?BR>榪欓噷鍏跺疄寰堟帹鑽怣artin鐨勯偅鏈琂2EE浼佷笟鏋勬灦鐨勪功錛屼篃灝辨槸璇碠R Mapping鐨勪竴浜涙寚瀵煎師鍒欍?BR>key point錛歭azy loading寰堥噸瑕侊紱model涔嬮棿鐨勫叧鑱斿敖鍙兘鏄弻鍚戯紝鍗充究鐢變簬鏈変簺鍘熷洜涓嶈兘澧炲姞Hibernate璇硶涓婄殑association錛圤bject A涓湁Object B浣滀負(fù)灞炴э級(jí)錛岄偅涔堟渶濂戒篃瑕佹湁Objecd A涓湁涓涓狾bjectBId錛屼絾鐩稿叧鑱斿皢緇檘uery 甯︽潵寰堝ぇ楹葷儲(chǔ)銆?渚嬪錛氬鏋滈渶姹傛湁鏍規(guī)嵁B鐨処D array鍘繪煡璇錛岄偅涔堟病鏈夎繖縐嶅叧緋伙紝鍒欏繀欏諱粠Object B鍏ユ墜鏌ヨA錛岃繖灝遍犳垚unnecessary鐨?涓〃join 鏌ヨ錛屽緢鑰楄垂璧勬簮銆?BR>2. 灝藉彲鑳藉湴Batch鎿嶄綔錛屼緥濡侭atch save鍜宭oop save鐨勬搷浣滐紝鎬ц兘涓婂ぉ宸湴鍒?BR>3. 鍦ㄧ被浼糝eport鐨凲uery(鎰忔寚鏌ヨ鏉′歡澶嶆潅錛屾暟鎹噺澶?錛?STRONG>鏄笉搴斿綋綺楃矑搴︽搷浣滅殑銆備竴鐩磋寰桱2EE鐨勪竴涓壒鐐瑰氨鏄紝綆鍖杁evelopers鐨勫伐浣滐紝闈㈠悜瀵硅薄錛屽茍涓旂矖綺掑害銆備絾鏄湪榪欑鎬ц川鐨勬煡璇㈤噷錛屽鏋滅矖綺掑害錛岀粨鏋滃氨浼?xì)瀵艰嚧鎬ц兘鐨勭伨闅俱傚叾瀹炶繖涓槸鑰佽皟閲嶅脊錛?002騫村乏鍙蟲垜璁板緱CSDN涓婂氨鏈変漢鍦ㄨ療鐥匤2EE璇存ц兘濡備綍鐨勫樊銆傚叾瀹炲叧閿槸developers鏄惁浼拌鍒癠se scenario瀵圭矑搴︾殑褰卞搷銆傜畝鍖杁evelopers鐨勫伐浣滄槸鏈夐檺搴︾殑錛孫R mapping鐨勫伐浣滀篃騫朵笉鏄負(fù)浜?jiǎn)鋴涉病鏈壘l忛獙涓鐢熷氨鑳藉寰堝鏄撶殑鍐欏嚭濂界殑Enterprise application銆傚叾瀹炴暟鎹洿鏂頒篃鏈夌被浼肩殑闂錛屼緥濡傛棤娉晆pdate specific 鐨刟ttribute鑰屼笉寰椾笉鏇存柊鏁翠釜Object錛岃繖涓椂鍊欐ц兘鐨勫樊寮傚氨浼?xì)浣撶幇鍑烘潵锛屽彧涓崢q囧ぇ澶氭暟鎯呭喌涓嬶紝Object涓嶄細(xì)澶у埌璁╀漢鏃犳硶鎺ュ彈錛屼篃涓嶄細(xì)鍍廟eport query閭f牱request澶ч噺鐨勬暟鎹紝鎵浠ヨ繖鏂歸潰鎬ц兘鐨勫獎(jiǎng)鍝嶏紝鍦?STRONG>涓浜?/STRONG>緋葷粺涓笉浼?xì)浣撶幇鍑烘潵銆?BR>鍚堢悊鍒掑垎Query鐨刧roup錛岀湡瀹炵殑鐩殑鏄噺灝戜竴嬈℃煡璇腑Join琛ㄧ殑涓暟銆侶ibernate2鐨勭己闄蜂篃鍙互鏈夋墍瑙勯伩錛堜笉鑳戒換鎰忔寚瀹欽oin鐨勬柟寮忥級(jí)
濡傚墠鎵榪幫紝Report query寰堝ぇ紼嬪害涓婅Object Model Design鎵鍒剁害
榪樻湁鍒殑涓浜涙潅鎰燂紝渚嬪Hibernate涓嶈兘support View錛屽姩鎬乵apping錛岄兘瀵規(guī)彁楂楶erformance鎵鑳介噰鍙栫殑stratagy鍋氫簡(jiǎn)闄愬埗銆備笉榪囪繖浜涗笢瑗夸技涔庡湪hibernate3涓湁浜?jiǎn)鏀寔锛寴q樻病鏈夋椂闂寸敤錛屼笉榪囧凡緇忚team閲岀殑涓涓猰ember鍘籸esearch涓涓媓ibernate3鐨刵ew feature