浠ヤ笅杞歡嫻嬭瘯鐜涓篠pring,Struts1
1銆侀氳繃struts1鎻愪緵鐨勬彃浠舵満鍒訛紝閲囩敤Spring鎻愪緵鐨凜ontextLoaderPlugIn
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<global-exceptions />
<global-forwards />
<message-resources parameter="com.portal.ApplicationResources" />
<!-- 閫氳繃S1鎻愪緵鐨勬彃浠舵満鍒舵潵鍒濆鍖朣pring瀹瑰櫒錛屽姞杞絊pring閰嶇疆鏂囦歡
<plug-in
className="org.springframework.web.struts.ContextLoaderPlugIn">
<!--
1銆丆ontextLoaderPlugIn榛樿鍔犺澆閰嶇疆鏂囦歡鍛藉悕瑙勫垯鏄痑ctionServlet-servlet.xml,鍏朵腑actionServlet
鏄厤緗畂rg.apache.struts.action.ActionServlet鏃舵寚瀹氱殑servlet鍚嶇О
2銆侀氳繃閰嶇疆contextConfigLocation灞炴ф潵鎸囩偣Spring閰嶇疆鏂囦歡鐨勪綅緗?澶氫釜閰嶇疆鏂囦歡鍙互浣跨敤 閫楀彿","銆佸垎鍙?;"銆佺┖鏍? "
-->
<set-property property="contextConfigLocation"
value="/WEB-INF/conf/spring-application.xml,/WEB-INF/conf/**/spring*.xml" />
</plug-in>
-->
</struts-config>
2銆侀噰鐢⊿pring鎻愪緵鐨凜ontextLoaderListener鏉ュ垵濮嬪寲(搴旂敤鏈嶅姟鍣ㄩ渶瑕佹敮鎸丩istener,Servlet2.3鐗堟湰鍙婁互涓?
<context-param>
<description>閫氳繃閰嶇疆contextConfigLocation灞炴ф潵鎸囩偣Spring閰嶇疆鏂囦歡鐨勪綅緗?澶氫釜閰嶇疆鏂囦歡鍙互浣跨敤 閫楀彿","銆佸垎鍙?;"銆佺┖鏍? "</description>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/conf/spring-application.xml /WEB-INF/conf/**/spring*.xml</param-value>
</context-param>
<listener>
<description>閫氳繃ContextLocaderListener鏉ュ垵濮嬪寲Spring瀹瑰櫒錛屽姞杞絊pring閰嶇疆鏂囦歡</description>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
3銆侀噰鐢╨oad-on-startup Servlet 鏉ュ垵濮嬪寲Spring瀹瑰櫒
<servlet>
<description>
閫氳繃load-on-startup Servlet鏉ュ垵濮嬪寲Spring瀹瑰櫒
璇ュ浣昐ervlet 鐢ㄤ簬鎻愪緵"鍚庡彴"鏈嶅姟錛屼綔涓哄鍣ㄧ鐞嗗簲鐢ㄤ腑鐨勫叾浠朾ean錛屼笉闇瑕佸搷搴斿鎴瘋姹傦紝鍥犳鏃犻』閰嶇疆servlet-mapping
</description>
<servlet-name>applicationContext</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
]]>
Hibernate瀛︿範絎旇
1銆?/span>Hibernate鏍稿績綾諱笌鎺ュ彛
1-1.Configuration綾?/span>
Configuration綾繪槸Hibernate鐨勫叆鍙ｏ紝瀹冭礋璐ｉ厤緗拰鍚姩Hibernate,Hibernate妗嗘灦閫氳繃Configuration瀹炰緥鍔犺澆閰嶇疆鏂囦歡淇℃伅(hibernate.cfg.xml),鐒跺悗璇誨彇鎸囧畾瀵硅薄鍏崇郴鏄犲皠鏂囦歡(bean.hbm.xml)鐨勫唴瀹瑰茍鍒涘緩SessionFactory.
1-2.SessionFactory鎺ュ彛
SessionFactory鎺ュ彛璐熻矗鍒濆鍖?/span>Hibernate,涓涓?/span>SessionFactory瀹炰緥瀵瑰簲涓涓暟鎹瓨鍌ㄦ簮(涓鑸氨鏄寚涓涓暟鎹簱)銆傚簲鐢ㄧ▼搴忎粠SessionFactory涓幏寰?/span>Session瀹炰緥銆?/span>SessionFactory鍏鋒湁浠ヤ笅鐗圭偣錛?/span>
1) 綰跨▼瀹夊叏錛屽嵆鍚屼竴涓?/span> SessionFactory瀹炰緥鍙互琚簲鐢?/span> 鐨勫涓嚎紼嬪叡浜?/span>
2) 瀹冩槸閲嶉噺綰х殑 錛屽洜涓哄畠闇瑕佷竴涓緢澶х殑緙撳瓨錛岀敤鏉ュ瓨鏀鵑瀹氫箟鐨?/span>SQL璇彞浠ュ強鏄犲皠鍏冩暟鎹瓑銆?/span>
鎵浠ヨ 錛屽鏋滀竴涓簲鐢ㄧ▼搴忎腑鍙闂竴涓暟鎹簱 錛屽垯鍙渶瑕佸垱寤轟竴涓叏灞鐨?/span> SessionFactory瀹炰緥銆?/span>
1-3.Session 鎺ュ彛
Session鏄?/span>Hibernate涓簲鐢ㄦ渶棰戠箒鐨勬帴鍙ｃ?/span>Session涔熻縐頒負鎸佷箙鍖栫鐞嗗櫒 錛屽畠璐熻矗綆＄悊鎵鏈変笌鎸佷箙鍖栫浉鍏崇殑鎿嶄綔錛氬瀛樺偍銆佹洿鏂般佸垹闄ゅ拰鍔犺澆瀵硅薄絳夈?/span>Session鎺ュ彛鍏鋒湁浠ヤ笅鐗圭偣錛?/span>
1) 鍗曠嚎紼嬶紝闈炲叡浜殑瀵硅薄銆傜嚎紼嬩笉瀹夊叏錛屽湪璁捐杞歡鏋舵瀯鏃跺欙紝搴旇閬垮厤澶氫釜綰跨▼鍏變韓鍚屼竴涓?/span>session瀹炰緥銆?/span>
2) Session 瀹炰緥鏄交閲忕駭鐨勶紝瀹冪殑鍒涘緩鍜岄攢姣佷笉闇瑕佹秷鑰楀お澶氱殑璧勬簮銆傚彲浠ヤ負姣忎釜璇峰垎閰嶄竴涓?/span>Session瀹炰緥錛屽湪姣忔璇鋒眰榪囩▼姹囨誨強鏃跺垱寤哄拰閿姣?/span> Session瀹炰緥銆?/span>
3) Session鏈変竴涓紦瀛橈紝瀹冨瓨鏀懼綋鍓嶅伐浣滃崟鍏冨姞杞界殑瀵硅薄銆?/span>Session鐨勭紦瀛樿縐頒負Hibernate鐨勪竴綰х紦瀛樸?/span>
1-4.Transaction鎺ュ彛
Transaction鎺ュ彛鏄?/span> Hibernate妗嗘灦鐨勪簨鍔℃帴鍙ｃ傚畠瀵瑰簳灞傜殑浜嬪姟鎺ュ彛鍋氫簡灝佽錛屽寘鎷細JDBC API鍜?/span>JTA.榪欐牱浣垮緱Hibernate搴旂敤鍙互閫氳繃涓鑷寸殑Transaction鎺ュ彛鏉ョ敵鏄庝簨鍔¤竟鐣岋紝榪欐湁鍔╀簬搴旂敤紼嬪簭鍐嶄笉鍚岀殑鐜鍜屽鍣ㄤ腑縐繪銆?/span>
1-5.Query鍜?/span>Criteria鎺ュ彛
瀹冧滑鏄?/span> Hibernate鐨勬煡璇㈡帴鍙ｏ紝鐢ㄤ簬浠庢暟鎹瓨鍌ㄦ簮鏌ヨ瀵硅薄鍙婃帶鍒舵墽琛屾煡璇㈢殑榪囩▼銆?/span>Query鍖呰浜嗕竴涓?/span> HQL(Hibernate Query Language)錛涜?/span>Criteria鎺ュ彛瀹屽叏灝佽浜嗗熀鏈瓧絎︿覆褰㈠紡鐨勬煡璇㈣鍙ワ紝姣?/span>Query鏇村姞闈㈠悜瀵硅薄錛?/span>Criteria鎺ュ彛鎿呴暱浜庢墽琛屽姩鎬佹煡璇€?/span>
2銆?/span>Hibernate涓父鐢ㄧ殑浜嬪姟闅旂綰у埆
|
甯擱噺 |
鍊?/span> |
璇存槑 |
|
TRANSACTION_NONE |
0 |
涓嶆敮鎸佷簨鍔?/span> |
|
TRANSACTION_READ_UNCOMMITTED |
1 |
鎸囩ず鍙互鍙戠敓鑴忚錛?/span>dirty read錛夈佷笉鍙噸澶嶈鍜岃櫄璇伙紙phantom read錛夌殑甯擱噺銆傛綰у埆鍏佽琚煇涓浜嬪姟鏇存敼鐨勮鍦ㄥ凡鎻愪氦璇ヨ鎵鏈夋洿鏀逛箣鍓嶈鍙︿竴涓簨鍔¤鍙栵紙“鑴忚”錛夈傚鏋滄墍鏈夋洿鏀歸兘琚洖婊氾紝鍒欑浜屼釜浜嬪姟灝嗚幏鍙栨棤鏁堢殑琛屻?/span> |
|
TRANSACTION_READ_COMMITTED |
2 |
鎸囩ず涓嶅彲浠ュ彂鐢熻剰璇葷殑甯擱噺錛涗笉鍙噸澶嶈鍜岃櫄璇誨彲浠ュ彂鐢熴傛綰у埆鍙姝簨鍔¤鍙栧叾涓甫鏈夋湭鎻愪氦鏇存敼鐨勮銆?/span> |
|
TRANSACTION_REPEATABLE_READ |
4 |
鎸囩ず涓嶅彲浠ュ彂鐢熻剰璇誨拰涓嶅彲閲嶅璇葷殑甯擱噺錛涜櫄璇誨彲浠ュ彂鐢熴傛綰у埆紱佹浜嬪姟璇誨彇甯︽湁鏈彁浜ゆ洿鏀圭殑琛岋紝瀹冭繕紱佹榪欑鎯呭喌錛氫竴涓簨鍔¤鍙栨煇涓琛岋紝鑰屽彟涓涓簨鍔℃洿鏀硅琛岋紝絎竴涓簨鍔￠噸鏂拌鍙栬琛岋紝騫跺湪絎簩嬈¤鍙栨椂鑾峰緱涓嶅悓鐨勫鹼紙“涓嶅彲閲嶅璇?#8221;錛夈?/span> |
|
TRANSACTION_SERIALIZABLE |
8 |
鎸囩ず涓嶅彲浠ュ彂鐢熻剰璇匯佷笉鍙噸澶嶈鍜岃櫄璇葷殑甯擱噺銆傛綰у埆鍖呮嫭TRANSACTION_REPEATABLE_READ 涓姝㈢殑浜嬮」錛屽悓鏃惰繕紱佹鍑虹幇榪欑鎯呭喌錛氭煇涓浜嬪姟璇誨彇鎵鏈夋弧瓚?/span> WHERE 鏉′歡鐨勮錛屽彟涓涓簨鍔℃彃鍏ヤ竴涓弧瓚?/span> WHERE 鏉′歡鐨勮錛岀涓涓簨鍔￠噸鏂拌鍙栨弧瓚崇浉鍚屾潯浠剁殑琛岋紝騫跺湪絎簩嬈¤鍙栨椂鑾峰緱棰濆鐨?#8220;铏?#8221;琛屻?/span> |
3銆?/span>Hibernate涓疄渚嬬殑鐘舵?/span>
3-1錛氫復鏃剁姸鎬?/span>
璇ュ疄渚嬩粠鏈笌浠諱綍鎸佷箙鍖栦笂涓嬫枃鍏寵仈榪囥傚畠娌℃湁鎸佷箙鍖栨爣璇嗭紙鐩稿綋浜庝富閿鹼級錛屼復鏃剁姸鎬佷笅鐨勫璞℃湁濡備笅鐗瑰緛銆?/span>
1錛?span style="font: 7pt 'Times New Roman'"> 涓嶅浜?/span>Session緙撳瓨涓紝涔熷彲浠ヨ涓嶈浠諱綍涓涓?/span>Session鍏寵仈
2錛?span style="font: 7pt 'Times New Roman'"> 鍦ㄦ暟鎹簱涓病鏈夊搴旂殑璁板綍
鍦ㄤ互涓嬫儏鍐典笅錛?/span>Java瀵硅薄榪涘叆涓存椂鐘舵?/span>
1錛?nbsp;褰撻氳繃new璇彞鍒氬垱寤轟竴涓?/span>Java瀵硅薄錛屽畠澶勪簬涓存椂鐘舵侊紝姝ゆ椂涓嶅拰鏁版嵁搴撲腑鐨勪換浣曡褰曞搴斻?/span>
2錛?nbsp;Session鐨?/span>delete()鏂規硶鑳戒嬌涓涓寔涔呭寲鎴栦復鏃惰劚綆″璞¤漿鎹負涓存椂瀵硅薄銆傚浜庤劚綆″璞★紝delete()鏂規硶浠庢暟鎹簱涓垹闄や笌瀹冨搴旂殑璁板綍錛屽茍涓旀妸瀹冧粠Session緙撳瓨涓垹闄ゃ?/span>
3-2錛氭寔涔呭寲鐘舵?/span>
璇ュ疄渚嬬洰鍓嶄笌鏌愪釜鎸佷箙鍖栦笂涓嬫枃鏈夊叧鑱旓紝瀹冩嫢鏈夋寔涔呭寲鏍囪瘑錛堢浉褰撲簬涓婚敭鍊鹼級錛屽茍涓斿彲鑳藉湪鏁版嵁搴撴眹鎬繪湁涓涓搴旂殑琛屻傚浜庢煇涓涓壒瀹氱殑鎸佷箙鍖栦笂涓嬫枃錛?/span>Hibernate淇濊瘉鏍囪瘑涓?/span>Java鏍囪瘑錛堝叾鍊間唬琛ㄥ搴斿湪鍐呭瓨涓殑浣嶇疆錛夌瓑浠楓傛寔涔呭寲瀵硅薄鏈変互涓嬬壒寰併?/span>
1錛?nbsp;浣嶄簬涓涓?/span>Session瀹炰緥鐨勭紦瀛樹腑錛屼篃鍙互璇達紝鎸佷箙鍖栧璞℃繪槸琚竴涓?/span>Session瀹炰緥鍏寵仈銆?/span>
2錛?nbsp;鎸佷箙鍖栧璞″拰鏁版嵁搴撲腑鐨勭浉鍏寵褰曞搴斻?/span>
3錛?nbsp;Session鍦ㄦ竻鐞嗙紦瀛樻椂錛屼細鏍規嵁鎸佷箙鍖栧璞＄殑灞炴у彉鍖栵紝鏉ュ悓姝ユ洿鏂版暟鎹簱銆?/span>
Session鐨勮澶氭柟娉曢兘鑳藉瑙﹀彂Java瀵硅薄榪涘叆鎸佷箙鍖栫姸鎬併?/span>
4錛?nbsp;Session鐨?/span>save()鐨勬柟娉曡兘澶熸妸涓存椂瀵硅薄杞彉鎴愭寔涔呭寲瀵硅薄銆?/span>
5錛?nbsp;Session鐨?/span>load()鎴?/span>get()鏂規硶榪斿洖鐨勫璞℃繪槸澶勪簬鎸佷箙鍖栫姸鎬併?/span>
6錛?nbsp;Query綾葷殑list()鏂規硶榪斿洖鐨?/span>list闆嗗悎涓瓨鏀劇殑閮芥槸鎸佷箙鍖栧璞°?/span>
7錛?nbsp;Session鐨?/span>update()銆?/span>saveOrUpdate()鍜?/span>lock()鏂規硶浣胯劚綆″璞¤漿鍙樹負鎸佷箙鍖栧璞°?/span>
褰撲竴涓寔涔呭寲瀵硅薄鍏寵仈涓涓復鏃跺璞℃椂錛屽湪鍏佽綰ц仈淇濆瓨鐨勬儏鍐典笅錛?/span>Session鍦ㄦ竻鐞嗙紦瀛樻椂浼氭妸榪欎釜涓存椂瀵硅薄涔熻漿鍙樻垚鎸佷箙鍖栧璞°?/span>Hibernate淇濊瘉鍦ㄥ悓涓涓?/span>Session瀹炰緥鐨勭紦瀛樹腑錛屾暟鎹簱琛ㄤ腑鐨勬瘡鏉¤褰曞彧瀵瑰簲鍞竴鐨勬寔涔呭寲瀵硅薄錛屼篃灝辨槸璇村湪涓涓?/span>Session閲?/span>load/get鍚屼竴涓?/span>OID寰楀埌 鐨勬槸鐩稿悓鐨勫璞°?/span>
3-3錛氳劚綆＄姸鎬?/span>
瀹炰緥鏇劇粡涓庢煇涓寔涔呭寲涓婁笅鏂囧彂鐢熻繃鍏寵仈錛屼笉榪囬偅涓笂涓嬫枃琚叧闂簡錛屾垨鑰呰繖涓疄渚嬫槸琚簭鍒楀寲(serialize)鍒板彟澶栫殑榪涚▼銆傚畠鎷ユ湁鎸佷箙鍖栨爣璇嗭紝騫朵笖鍦ㄦ暟鎹簱涓彲鑳藉瓨鍦ㄤ竴涓搴旂殑琛屻傚浜庤劚綆＄姸鎬佺殑瀹炰緥錛?/span>Hibernate涓嶄繚璇佷換浣曟寔涔呭寲鏍囪瘑鍜?/span>Java鏍囪瘑鐨勫叧緋匯?/span>
鑴辯瀵硅薄鍏鋒湁浠ヤ笅鐗瑰緛銆?/span>
1錛?span style="font: 7pt 'Times New Roman'"> 涓嶅啀浣嶄簬Session鐨勭紦瀛樹腑錛屼篃鍙互璇達紝鑴辯瀵硅薄涓嶈Session鍏寵仈銆?/span>
2錛?span style="font: 7pt 'Times New Roman'"> 鑴辯瀵硅薄鏄湁鎸佷箙鍖栧璞¤漿鍙樿繃鏉ョ殑錛屽洜姝ゅ湪鏁版嵁搴撲腑鍙兘榪樺瓨鍦ㄤ笌瀹冨搴旂殑璁板綍(鍓嶆彁鏉′歡鏄病鏈夊叾浠栫▼搴忓垹闄や簡榪欐潯璁板綍)銆?/span>
3錛?span style="font: 7pt 'Times New Roman'"> 鑴辯瀵硅薄涓庝復鏃跺璞＄殑鐩稿悓鎸囧嚭鍦ㄤ簬涓よ呴兘涓嶈Session鍏寵仈錛屽洜姝?/span>Hibernate涓嶄細淇濊瘉浠栦滑灞炴у彉鍖栦笌鏁版嵁搴撲繚鎸佸悓姝ャ傝劚綆″璞′笌涓存椂瀵硅薄鐨勫尯鍒湪浜庡墠鑰呮槸鐢辨寔涔呭寲瀵硅薄杞彉榪囨潵鐨勶紝鍥犳鍙兘鍦ㄤ功搴撲腑榪樺瓨鍦ㄥ搴旂殑璁板綍錛岃屽悗鑰呭湪鏁版嵁搴撲腑鏄病鏈夊搴旂殑璁板綍鐨勩?/span>
Session鐨勪互涓嬫柟娉曚嬌鎸佷箙鍖栧璞¤漿鍙樻垚鑴辯瀵硅薄.
1) 褰撹皟鐢?/span>Session鐨?/span>close()鏂規硶鏃訛紝Session 鐨勭紦瀛樿娓呯┖錛岀紦瀛樹腑鐨勬墍鏈夋寔涔呭寲瀵硅薄閮藉彉涓鴻劚綆″璞★紝濡傛灉鍦ㄥ簲鐢ㄧ▼搴忎腑娌℃湁寮曠敤鍙橀噺寮曠敤榪欎簺鑴辯瀵硅薄錛屼粬浠氨浼氱粨鏉熺敓鍛藉懆鏈熴?/span>
2) Session鐨?/span>evict()鏂規硶鑳藉浠庣紦瀛樹腑鍒犻櫎涓涓寔涔呭寲瀵硅薄錛屼嬌瀹冨彉涓鴻劚綆＄姸鎬侊紝褰?/span>Session鐨勭紦瀛樹腑淇濆瓨浜嗗ぇ閲忕殑鎸佷箙鍖栧璞℃椂錛屼細娑堣楄澶氬唴瀛樼┖闂達紝涓轟簡鎻愰珮鎬ц兘錛屽彲浠ヨ冭檻璋冪敤evict()鏂規硶錛屼粠緙撳瓨涓垹闄や竴浜涙寔涔呭寲瀵硅薄銆備絾鏄鏁版儏鍐典笅涓嶆帹鑽愪嬌鐢ㄨ鏂規硶錛岃屽簲璇ラ氳繃鏌ヨ璇█錛屾垨鑰呮樉紺虹殑瀵艱埅鏉ユ帶鍒跺璞″浘鐨勬繁搴︺?/span>
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