娆㈣繋鍏遍槄
1.web
涓殑
forward
鍜?/p>
redirect
鐨勫尯鍒紵
鍓嶈�呬粎鏄鍣ㄤ腑鎺у埗鏉冪殑杞悜锛屽湪瀹㈡埛绔祻瑙堝櫒鍦板潃鏍忎腑涓嶄細鏄剧ず鍑鸿浆鍚戝悗鐨勫湴鍧�锛涘悗鑰呭垯鏄畬
鍏ㄧ殑璺宠浆锛屾祻瑙堝櫒灏嗕細寰楀埌璺宠浆鐨勫湴鍧�锛?/p>
骞堕噸鏂板彂閫佽姹傞摼鎺ャ�傝繖鏍凤紝
浠庢祻瑙堝櫒鐨勫湴鍧�鏍忎腑鍙互鐪?/p>
鍒拌烦杞悗鐨勯摼鎺ュ湴鍧�銆傛墍浠ワ紝鍓嶈�呮洿鍔犻珮鏁堬紝鍦ㄥ墠鑰呭彲浠ユ弧瓒抽渶瑕佹椂锛屽敖閲忎娇鐢?/p>
forward()
鏂规硶锛?/p>
骞朵笖锛?/p>
杩欐牱涔熸湁鍔╀簬闅愯棌瀹為檯鐨勯摼鎺ャ�?/p>
鍦ㄦ湁浜涙儏鍐典笅锛?/p>
姣斿锛?/p>
闇�瑕佽烦杞埌涓�涓叾瀹冩湇鍔″櫒涓婄殑璧勬簮锛?/p>
鍒欏繀椤讳娇鐢?/p>
sendRedirect()
鏂规硶銆?/p>
2. xml
鍦ㄨВ閲婄殑鏃跺�?/p>
DOM
鍜?/p>
SAX
鍗忚鐨勫尯鍒拰鍚箟锛?/p>
DOM:
澶勭悊澶у瀷鏂囦欢鏃跺叾鎬ц兘涓嬮檷鐨勯潪甯稿帀瀹炽�?/p>
杩欎釜闂鏄敱
DOM
鐨勬爲缁撴瀯鎵�閫犳垚鐨勶紝
杩欑缁撴瀯鍗犵敤
鐨勫唴瀛樿緝澶氾紝鑰屼笖
DOM
蹇呴』鍦ㄨВ鏋愭枃浠朵箣鍓嶆妸鏁翠釜鏂囨。瑁呭叆鍐呭瓨
,
閫傚悎瀵?/p>
XML
鐨勯殢鏈鸿闂?/p>
SAX:
涓嶇幇浜?/p>
DOM,SAX
鏄簨浠堕┍鍔ㄥ瀷鐨?/p>
XML
瑙ｆ瀽鏂瑰紡銆?/p>
瀹冮『搴忚鍙?/p>
XML
鏂囦欢锛?/p>
涓嶉渶瑕佷竴娆″叏閮ㄨ杞芥暣
涓枃浠躲�傚綋閬囧埌鍍忔枃浠跺紑澶达紝鏂囨。缁撴潫锛屾垨鑰呮爣绛惧紑澶翠笌鏍囩缁撴潫鏃讹紝瀹冧細瑙﹀彂涓�涓簨浠讹紝鐢ㄦ埛閫?/p>
杩囧湪鍏跺洖璋冧簨浠朵腑鍐欏叆澶勭悊浠ｇ爜鏉ュ鐞?/p>
XML
鏂囦欢锛岄�傚悎瀵?/p>
XML
鐨勯『搴忚闂?/p>
3
璇存槑
JNDI
銆?/p>
JMS
銆?/p>
JTA
銆?/p>
RMI
鐨勬剰鎬濓紵
JNDI(Java Naming and Directory Interface)
鏄竴涓簲鐢ㄧ▼搴忚璁＄殑
API
锛屼负寮�鍙戜汉鍛樻彁渚涗簡鏌?/p>
鎵惧拰璁块棶鍚勭鍛藉悕鍜岀洰褰曟湇鍔＄殑閫氱敤銆佺粺涓�鐨勬帴鍙ｏ紝绫讳技
JDBC
閮芥槸鏋勫缓鍦ㄦ娊璞″眰涓娿�?/p>
JMS
锛?/p>
Java Messaging Service
锛夋槸
Java
骞冲彴涓婃湁鍏抽潰鍚戞秷鎭腑闂翠欢鐨勬妧鏈鑼冿紝缈昏瘧涓?/p>
Java
娑?/p>
鎭湇鍔°�?/p>
JMS
鏀寔鐐瑰鐐瑰拰鍙戝竷
/
璁㈤槄涓ょ娑堟伅妯″瀷銆?/p>
JTA(Java Transaction API)
涓?/p>
J2EE
骞冲彴鎻愪緵浜嗗垎甯冨紡浜嬪姟鏈嶅姟銆傝鐢?/p>
JTA
杩涜浜嬪姟鐣屽畾锛屽簲
鐢ㄧ▼搴忚璋冪敤
javax.transaction.UserTransaction
鎺ュ彛涓殑鏂规硶
.
RMI
鏄?/p>
Java
鐨勪竴缁勬嫢鎶ゅ紑鍙戝垎甯冨紡搴旂敤绋嬪簭鐨?/p>
API
銆?/p>
RMI
浣跨敤
Java
璇█鎺ュ彛瀹氫箟浜嗚繙绋嬪璞★紝瀹?/p>
闆嗗悎浜?/p>
Java
搴忓垪鍖栧拰
Java
杩滅▼鏂规硶鍗忚
(Java Remote Method Protocol)
銆傚畠澶уぇ澧炲己浜?/p>
Java
寮�鍙戝垎甯冨紡搴旂敤鐨勮兘鍔?/p>
4.
鍗曚緥妯″紡
Public class Signle{
Private Signle(){
}
Pirvate static Signle signle = new Signle();
Public static Signle gets(){
Retrun signle;
}
}
5
鏁版嵁搴撲腑
left join
鐨勬剰鎬濓紝鍜屽湪浠�涔堝満鍚堜腑搴旂敤锛?/p>
LEFT JOIN
鎿嶄綔鐢ㄤ簬鍦ㄤ换浣曠殑
FROM
瀛愬彞涓紝缁勫悎鏉ユ簮琛ㄧ殑璁板綍銆備娇鐢?/p>
LEFT JOIN
杩愮畻鏉ュ垱寤轰竴
涓乏杈瑰閮ㄨ仈鎺ャ�傚乏杈瑰閮ㄨ仈鎺ュ皢鍖呭惈浜嗕粠绗竴涓紙宸﹁竟锛夊紑濮嬬殑涓や釜琛ㄤ腑鐨勫叏閮ㄨ褰曪紝
鍗充娇鍦ㄧ
浜屼釜锛堝彸杈癸級琛ㄤ腑骞舵病鏈夌浉绗﹀�肩殑璁板綍銆?/p>
6 ejb
涓殑
sessionbean
鍜?/p>
entitybean
鐨勫尯鍒拰鍚箟锛?/p>
SessionBean
鍦?/p>
J2EE
搴旂敤绋嬪簭涓鐢ㄦ潵瀹屾垚涓�浜涙湇鍔″櫒绔殑涓氬姟鎿嶄綔锛屼緥濡傝闂暟鎹簱銆佽皟鐢ㄥ叾
浠?/p>
EJB
缁勪欢銆?/p>
EntityBean
琚敤鏉ヤ唬琛ㄥ簲鐢ㄧ郴缁熶腑鐢ㄥ埌鐨勬暟鎹�?/p>
瀵逛簬瀹㈡埛鏈猴紝
SessionBean
鏄竴绉嶉潪鎸佷箙鎬у璞★紝瀹冨疄鐜版煇浜涘湪鏈嶅姟鍣ㄤ笂杩愯鐨勪笟鍔￠�昏緫銆?/p>