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,亚洲精品视频在线http://m.tkk7.com/stevenjohn/category/51693.html閭d簺闈掓槬鐨勫瞾鏈?/description>zh-cnMon, 14 May 2012 01:29:17 GMTMon, 14 May 2012 01:29:17 GMT60- Hibernate Annotation 涓厤緗瓻hCache緙撳瓨 http://m.tkk7.com/stevenjohn/archive/2012/05/14/378069.htmlabinabinMon, 14 May 2012 01:24:00 GMThttp://m.tkk7.com/stevenjohn/archive/2012/05/14/378069.htmlhttp://m.tkk7.com/stevenjohn/comments/378069.htmlhttp://m.tkk7.com/stevenjohn/archive/2012/05/14/378069.html#Feedback0http://m.tkk7.com/stevenjohn/comments/commentRss/378069.htmlhttp://m.tkk7.com/stevenjohn/services/trackbacks/378069.htmlCache綆浠嬶細 緙撳瓨(Cache )鏄綆楁満棰嗗煙闈炲父閫氱敤鐨勬蹇點傚畠浠嬩簬搴旂敤紼嬪簭鍜屾案涔呮ф暟鎹瓨鍌ㄦ簮(濡傜‖鐩樹笂鐨勬枃浠舵垨鑰呮暟鎹簱)涔嬮棿錛屽叾浣滅敤鏄檷浣庡簲鐢ㄧ▼搴忕洿鎺ヨ鍐欐案涔呮ф暟鎹瓨鍌ㄦ簮鐨勯鐜囷紝浠庤屾彁楂樺簲鐢ㄧ殑榪愯鎬ц兘銆傜紦瀛樹腑鐨勬暟鎹槸鏁版嵁瀛樺偍婧愪腑鏁版嵁鐨勬嫹璐濓紝搴旂敤紼嬪簭鍦ㄨ繍琛屾椂鐩存帴璇誨啓緙撳瓨涓殑鏁版嵁錛屽彧鍦ㄦ煇浜涚壒瀹氭椂鍒繪寜鐓х紦瀛樹腑鐨勬暟鎹潵鍚屾鏇存柊鏁版嵁瀛樺偍婧愩?br />緙撳瓨鐨勭墿鐞嗕粙璐ㄩ氬父鏄唴瀛橈紝鑰屾案涔呮ф暟鎹瓨鍌ㄦ簮鐨勭墿鐞嗕粙璐ㄩ氬父鏄‖鐩樻垨紓佺洏錛屽簲鐢ㄧ▼搴忚鍐欏唴鍦ㄧ殑閫熷害鏄劇劧姣旇鍐欑‖鐩樼殑閫熷害蹇紝濡傛灉緙撳瓨涓瓨鏀劇殑鏁版嵁閲忛潪甯稿ぇ錛屼篃浼氱敤紜洏浣滀負緙撳瓨鐨勭墿鐞嗕粙璐ㄣ?br />緙撳瓨鐨勫疄鐜頒笉浠呴渶瑕佷綔涓虹墿鐞嗕粙璐ㄧ殑紜歡錛屽悓鏃惰繕闇瑕佺敤浜庣鐞嗙紦瀛樼殑騫跺彂璁塊棶鍜岃繃鏈熺瓑絳栫暐鐨勮蔣浠躲傚洜姝わ紝緙撳瓨鏄氳繃杞歡鍜岀‖浠跺叡鍚屽疄鐜扮殑銆?br />1.1. 鎸佷箙鍖栧眰鐨勭紦瀛樼殑鑼冨洿
緙撳瓨鐨勮寖鍥村喅瀹氫簡緙撳瓨鐨勭敓鍛藉懆鏈熶互鍙婂彲浠ヨ璋佽闂傜紦瀛樼殑鑼冨洿鍒嗕負涓夌被銆?br />1) 浜嬪姟鑼冨洿錛氱紦瀛樺彧鑳借褰撳墠浜嬪姟璁塊棶銆傜紦瀛樼殑鐢熷懡鍛ㄦ湡渚濊禆浜庝簨鍔$殑鐢熷懡鍛ㄦ湡錛屽綋浜嬪姟緇撴潫鏃訛紝緙撳瓨涔熷氨緇撴潫鐢熷懡鍛ㄦ湡銆傚湪姝よ寖鍥翠笅錛岀紦瀛樼殑浠嬭川鏄唴瀛樸備簨鍔″彲浠ユ槸鏁版嵁搴撲簨鍔℃垨鑰呭簲鐢ㄤ簨鍔★紝姣忎釜浜嬪姟閮芥湁鐙嚜鐨勭紦瀛橈紝緙撳瓨鍐呯殑鏁版嵁閫氬父閲囩敤鐩鎬簰鍏寵仈鐨勫璞″艦寮忋?br />2) 榪涚▼鑼冨洿錛氱紦瀛樿榪涚▼鍐呯殑鎵鏈変簨鍔″叡浜傝繖浜涗簨鍔℃湁鍙兘鏄茍鍙戣闂紦瀛橈紝鍥犳蹇呴』瀵圭紦瀛橀噰鍙栧繀瑕佺殑浜嬪姟闅旂鏈哄埗銆傜紦瀛樼殑鐢熷懡鍛ㄦ湡渚濊禆浜庤繘紼嬬殑鐢熷懡鍛ㄦ湡錛岃繘紼嬬粨鏉熸椂錛岀紦瀛樹篃灝辯粨鏉熶簡鐢熷懡鍛ㄦ湡銆傝繘紼嬭寖鍥寸殑緙撳瓨鍙兘浼氬瓨鏀懼ぇ閲忕殑鏁版嵁錛屾墍浠ュ瓨鏀劇殑浠嬭川鍙互鏄唴瀛樻垨紜洏銆傜紦瀛樺唴鐨勬暟鎹棦鍙互鏄浉浜掑叧鑱旂殑瀵硅薄褰㈠紡涔熷彲浠ユ槸瀵硅薄鐨勬澗鏁f暟鎹艦寮忋傛澗鏁g殑瀵硅薄鏁版嵁褰㈠紡鏈夌偣綾諱技浜庡璞$殑搴忓垪鍖栨暟鎹紝浣嗘槸瀵硅薄鍒嗚В涓烘澗鏁g殑綆楁硶姣斿璞″簭鍒楀寲鐨勭畻娉曡姹傛洿蹇?br />3) 闆嗙兢鑼冨洿錛氬湪闆嗙兢鐜涓紝緙撳瓨琚竴涓満鍣ㄦ垨鑰呭涓満鍣ㄧ殑榪涚▼鍏變韓銆傜紦瀛樹腑鐨勬暟鎹澶嶅埗鍒伴泦緹ょ幆澧冧腑鐨勬瘡涓繘紼嬭妭鐐癸紝榪涚▼闂撮氳繃榪滅▼閫氫俊鏉ヤ繚璇佺紦瀛樹腑鐨勬暟鎹殑涓鑷存э紝緙撳瓨涓殑鏁版嵁閫氬父閲囩敤瀵硅薄鐨勬澗鏁f暟鎹艦寮忋?br />瀵瑰ぇ澶氭暟搴旂敤鏉ヨ錛屽簲璇ユ厧閲嶅湴鑰冭檻鏄惁闇瑕佷嬌鐢ㄩ泦緹よ寖鍥寸殑緙撳瓨錛屽洜涓鴻闂殑閫熷害涓嶄竴瀹氫細姣旂洿鎺ヨ闂暟鎹簱鏁版嵁鐨勯熷害蹇灝戙?br />鎸佷箙鍖栧眰鍙互鎻愪緵澶氱鑼冨洿鐨勭紦瀛樸傚鏋滃湪浜嬪姟鑼冨洿鐨勭紦瀛樹腑娌℃湁鏌ュ埌鐩稿簲鐨勬暟鎹紝榪樺彲浠ュ埌榪涚▼鑼冨洿鎴栭泦緹よ寖鍥寸殑緙撳瓨鍐呮煡璇紝濡傛灉榪樻槸娌℃湁鏌ュ埌錛岄偅涔堝彧鏈夊埌鏁版嵁搴撲腑鏌ヨ銆備簨鍔¤寖鍥寸殑緙撳瓨鏄寔涔呭寲灞傜殑絎竴綰х紦瀛橈紝閫氬父瀹冩槸蹇呴渶鐨勶紱榪涚▼鑼冨洿鎴栭泦緹よ寖鍥寸殑緙撳瓨鏄寔涔呭寲灞傜殑絎簩綰х紦瀛橈紝閫氬父鏄彲閫夌殑銆?/strong>
1.2. 鎸佷箙鍖栧眰鐨勭紦瀛樼殑騫跺彂璁塊棶絳栫暐
褰撳涓茍鍙戠殑浜嬪姟鍚屾椂璁塊棶鎸佷箙鍖栧眰鐨勭紦瀛樼殑鐩稿悓鏁版嵁鏃訛紝浼氬紩璧峰茍鍙戦棶棰橈紝蹇呴』閲囩敤蹇呰鐨勪簨鍔¢殧紱繪帾鏂姐?br />鍦ㄨ繘紼嬭寖鍥存垨闆嗙兢鑼冨洿鐨勭紦瀛橈紝鍗崇浜岀駭緙撳瓨錛屼細鍑虹幇騫跺彂闂銆傚洜姝ゅ彲浠ヨ瀹氫互涓嬪洓縐嶇被鍨嬬殑騫跺彂璁塊棶絳栫暐錛屾瘡涓縐嶇瓥鐣ュ搴斾竴縐嶄簨鍔¢殧紱葷駭鍒?br />1) 浜嬪姟鍨?Transactional)絳栫暐錛氫粎浠呭湪鍙楃鐞嗙幆澧冧腑閫傜敤銆傚畠鎻愪緵浜哛epeatable Read浜嬪姟闅旂綰у埆銆傚浜庣粡甯歌璇諱絾寰堝皯淇敼鐨勬暟鎹紝鍙互閲囩敤榪欑闅旂綾誨瀷錛屽洜涓哄畠鍙互闃叉鑴忚鍜屼笉鍙噸澶嶈榪欑被鐨勫茍鍙戦棶棰樸?br />2) 璇誨啓鍨?read-write)絳栫暐錛氭彁渚涗簡Read Committed浜嬪姟闅旂綰у埆銆備粎浠呭湪闈為泦緹ょ殑鐜涓傜敤銆傚浜庣粡甯歌璇諱絾寰堝皯淇敼鐨勬暟鎹紝鍙互閲囩敤榪欑闅旂綾誨瀷錛屽洜涓哄畠鍙互闃叉鑴忚榪欑被鐨勫茍鍙戦棶棰樸?br />3) 闈炰弗鏍艱鍐欏瀷(nonstrict-read-write)絳栫暐錛氫笉淇濊瘉緙撳瓨涓庢暟鎹簱涓暟鎹殑涓鑷存с傚鏋滃瓨鍦ㄤ袱涓簨鍔″悓鏃惰闂紦瀛樹腑鐩稿悓鏁版嵁鐨勫彲鑳斤紝蹇呴』涓鴻鏁版嵁閰嶇疆涓涓緢鐭殑鏁版嵁榪囨湡鏃墮棿錛屼粠鑰屽敖閲忛伩鍏嶈剰璇匯傚浜庢瀬灝戣淇敼錛屽茍涓斿厑璁稿伓灝旇剰璇葷殑鏁版嵁錛屽彲浠ラ噰鐢ㄨ繖縐嶅茍鍙戣闂瓥鐣ャ?br />4) 鍙鍨嬬瓥鐣?read-only)錛氬浜庝粠鏉ヤ笉浼氫慨鏀圭殑鏁版嵁錛屽鍙傝冩暟鎹紝鍙互浣跨敤榪欑騫跺彂璁塊棶絳栫暐銆?br />浜嬪姟鍨嬪茍鍙戣闂瓥鐣ユ槸浜嬪姟闅旂綰у埆鏈楂橈紝鍙鍨嬬殑闅旂綰у埆鏈浣庛備簨鍔¢殧紱葷駭鍒秺楂橈紝騫跺彂鎬ц兘灝辮秺浣庛?br />2. Hibernate涓殑緙撳瓨錛?/font>
Hibernate涓彁渚涗簡涓ょ駭Cache錛岀涓綰у埆鐨勭紦瀛樻槸Session綰у埆鐨勭紦瀛橈紝瀹冩槸灞炰簬浜嬪姟鑼冨洿鐨勭紦瀛樸傝繖涓綰у埆鐨勭紦瀛樼敱hibernate綆$悊鐨勶紝涓鑸儏鍐典笅鏃犻渶榪涜騫查錛涚浜岀駭鍒殑緙撳瓨鏄疭essionFactory綰у埆鐨勭紦瀛橈紝瀹冩槸灞炰簬榪涚▼鑼冨洿鎴栫兢闆嗚寖鍥寸殑緙撳瓨銆傝繖涓綰у埆鐨勭紦瀛樺彲浠ヨ繘琛岄厤緗拰鏇存敼錛屽茍涓斿彲浠ュ姩鎬佸姞杞藉拰鍗歌澆銆?br />Hibernate榪樹負鏌ヨ緇撴灉鎻愪緵浜嗕竴涓煡璇㈢紦瀛橈紝瀹冧緷璧栦簬絎簩綰х紦瀛樸?br />2.1. 涓綰х紦瀛樺拰浜岀駭緙撳瓨鐨勬瘮杈冿細
絎竴綰х紦瀛?/strong>
絎簩綰х紦瀛?/strong>
瀛樻斁鏁版嵁鐨勫艦寮?/strong>
鐩鎬簰鍏寵仈鐨勬寔涔呭寲瀵硅薄
瀵硅薄鐨勬暎瑁呮暟鎹?br />緙撳瓨鐨勮寖鍥?/strong>
浜嬪姟鑼冨洿錛屾瘡涓簨鍔¢兘鏈夊崟鐙殑絎竴綰х紦瀛?br />榪涚▼鑼冨洿鎴栭泦緹よ寖鍥達紝緙撳瓨琚悓涓涓繘紼嬫垨闆嗙兢鑼冨洿鍐呯殑鎵鏈変簨鍔″叡浜?br />騫跺彂璁塊棶絳栫暐
鐢變簬姣忎釜浜嬪姟閮芥嫢鏈夊崟鐙殑絎竴綰х紦瀛橈紝涓嶄細鍑虹幇騫跺彂闂錛屾棤闇鎻愪緵騫跺彂璁塊棶絳栫暐
鐢變簬澶氫釜浜嬪姟浼氬悓鏃惰闂浜岀駭緙撳瓨涓浉鍚屾暟鎹紝鍥犳蹇呴』鎻愪緵閫傚綋鐨勫茍鍙戣闂瓥鐣ワ紝鏉ヤ繚璇佺壒瀹氱殑浜嬪姟闅旂綰у埆
鏁版嵁榪囨湡絳栫暐
娌℃湁鎻愪緵鏁版嵁榪囨湡絳栫暐銆傚浜庝竴綰х紦瀛樹腑鐨勫璞℃案榪滀笉浼氳繃鏈燂紝闄ら潪搴旂敤紼嬪簭鏄懼紡娓呯┖緙撳瓨鎴栬呮竻闄ょ壒瀹氱殑瀵硅薄
蹇呴』鎻愪緵鏁版嵁榪囨湡絳栫暐錛屽鍩轟簬鍐呭瓨鐨勭紦瀛樹腑鐨勫璞$殑鏈澶ф暟鐩紝鍏佽瀵硅薄澶勪簬緙撳瓨涓殑鏈闀挎椂闂達紝浠ュ強鍏佽瀵硅薄澶勪簬緙撳瓨涓殑鏈闀跨┖闂叉椂闂?br />鐗╃悊瀛樺偍浠嬭川
鍐呭瓨
鍐呭瓨鍜岀‖鐩樸傚璞$殑鏁h鏁版嵁棣栧厛瀛樻斁鍦ㄥ熀浜庡唴鍦ㄧ殑緙撳瓨涓紝褰撳唴瀛樹腑瀵硅薄鐨勬暟鐩揪鍒版暟鎹繃鏈熺瓥鐣ヤ腑鎸囧畾涓婇檺鏃訛紝灝變細鎶婂叾浣欑殑瀵硅薄鍐欏叆鍩轟簬紜洏鐨勭紦瀛樹腑銆?br />緙撳瓨鐨勮蔣浠跺疄鐜?/strong>
鍦℉ibernate鐨凷ession鐨勫疄鐜頒腑鍖呭惈浜嗙紦瀛樼殑瀹炵幇
鐢辯涓夋柟鎻愪緵錛孒ibernate浠呮彁渚涗簡緙撳瓨閫傞厤鍣?CacheProvider)銆傜敤浜庢妸鐗瑰畾鐨勭紦瀛樻彃浠墮泦鎴愬埌Hibernate涓?br />鍚敤緙撳瓨鐨勬柟寮?/strong>
鍙搴旂敤紼嬪簭閫氳繃Session鎺ュ彛鏉ユ墽琛屼繚瀛樸佹洿鏂般佸垹闄ゃ佸姞杞藉拰鏌ヨ鏁版嵁搴撴暟鎹殑鎿嶄綔錛孒ibernate灝變細鍚敤絎竴綰х紦瀛橈紝鎶婃暟鎹簱涓殑鏁版嵁浠ュ璞$殑褰㈠紡鎷瘋礉鍒扮紦瀛樹腑錛屽浜庢壒閲忔洿鏂板拰鎵歸噺鍒犻櫎鎿嶄綔錛屽鏋滀笉甯屾湜鍚敤絎竴綰х紦瀛橈紝鍙互緇曡繃Hibernate API錛岀洿鎺ラ氳繃JDBC API鏉ユ墽琛屾寚鎿嶄綔銆?br />鐢ㄦ埛鍙互鍦ㄥ崟涓被鎴栫被鐨勫崟涓泦鍚堢殑綺掑害涓婇厤緗浜岀駭緙撳瓨銆傚鏋滅被鐨勫疄渚嬭緇忓父璇諱絾寰堝皯琚慨鏀癸紝灝卞彲浠ヨ冭檻浣跨敤絎簩綰х紦瀛樸傚彧鏈変負鏌愪釜綾繪垨闆嗗悎閰嶇疆浜嗙浜岀駭緙撳瓨錛孒ibernate鍦ㄨ繍琛屾椂鎵嶄細鎶婂畠鐨勫疄渚嬪姞鍏ュ埌絎簩綰х紦瀛樹腑銆?br />鐢ㄦ埛綆$悊緙撳瓨鐨勬柟寮?/strong>
絎竴綰х紦瀛樼殑鐗╃悊浠嬭川涓哄唴瀛橈紝鐢變簬鍐呭瓨瀹歸噺鏈夐檺錛屽繀欏婚氳繃鎭板綋鐨勬绱㈢瓥鐣ュ拰媯绱㈡柟寮忔潵闄愬埗鍔犺澆瀵硅薄鐨勬暟鐩係ession鐨別vit()鏂規硶鍙互鏄懼紡娓呯┖緙撳瓨涓壒瀹氬璞★紝浣嗚繖縐嶆柟娉曚笉鍊煎緱鎺ㄨ崘銆?br />絎簩綰х紦瀛樼殑鐗╃悊浠嬭川鍙互鏄唴瀛樺拰紜洏錛屽洜姝ょ浜岀駭緙撳瓨鍙互瀛樻斁澶ч噺鐨勬暟鎹紝鏁版嵁榪囨湡絳栫暐鐨刴axElementsInMemory灞炴у煎彲浠ユ帶鍒跺唴瀛樹腑鐨勫璞℃暟鐩傜鐞嗙浜岀駭緙撳瓨涓昏鍖呮嫭涓や釜鏂歸潰錛氶夋嫨闇瑕佷嬌鐢ㄧ浜岀駭緙撳瓨鐨勬寔涔呯被錛岃緗悎閫傜殑騫跺彂璁塊棶絳栫暐錛氶夋嫨緙撳瓨閫傞厤鍣紝璁劇疆鍚堥傜殑鏁版嵁榪囨湡絳栫暐銆?br />2.2. 涓綰х紦瀛樼殑綆$悊錛?/strong>
褰撳簲鐢ㄧ▼搴忚皟鐢⊿ession鐨剆ave()銆乽pdate()銆乻avaeOrUpdate()銆乬et()鎴杔oad()錛屼互鍙婅皟鐢ㄦ煡璇㈡帴鍙g殑list()銆乮terate()鎴杅ilter()鏂規硶鏃訛紝濡傛灉鍦⊿ession緙撳瓨涓繕涓嶅瓨鍦ㄧ浉搴旂殑瀵硅薄錛孒ibernate灝變細鎶婅瀵硅薄鍔犲叆鍒扮涓綰х紦瀛樹腑銆傚綋娓呯悊緙撳瓨鏃訛紝Hibernate浼氭牴鎹紦瀛樹腑瀵硅薄鐨勭姸鎬佸彉鍖栨潵鍚屾鏇存柊鏁版嵁搴撱?br />Session涓哄簲鐢ㄧ▼搴忔彁渚涗簡涓や釜綆$悊緙撳瓨鐨勬柟娉曪細
evict(Object obj)錛氫粠緙撳瓨涓竻闄ゅ弬鏁版寚瀹氱殑鎸佷箙鍖栧璞°?br />clear()錛氭竻絀虹紦瀛樹腑鎵鏈夋寔涔呭寲瀵硅薄銆?br />2.3. 浜岀駭緙撳瓨鐨勭鐞嗭細
2.3.1. Hibernate鐨勪簩綰х紦瀛樼瓥鐣ョ殑涓鑸繃紼嬪涓嬶細
1) 鏉′歡鏌ヨ鐨勬椂鍊欙紝鎬繪槸鍙戝嚭涓鏉elect * from table_name where …. 錛堥夋嫨鎵鏈夊瓧孌碉級榪欐牱鐨凷QL璇彞鏌ヨ鏁版嵁搴擄紝涓嬈¤幏寰楁墍鏈夌殑鏁版嵁瀵硅薄銆?nbsp;
2) 鎶婅幏寰楃殑鎵鏈夋暟鎹璞℃牴鎹甀D鏀懼叆鍒扮浜岀駭緙撳瓨涓?nbsp;
3) 褰揌ibernate鏍規嵁ID璁塊棶鏁版嵁瀵硅薄鐨勬椂鍊欙紝棣栧厛浠嶴ession涓綰х紦瀛樹腑鏌ワ紱鏌ヤ笉鍒幫紝濡傛灉閰嶇疆浜嗕簩綰х紦瀛橈紝閭d箞浠庝簩綰х紦瀛樹腑鏌ワ紱鏌ヤ笉鍒幫紝鍐嶆煡璇㈡暟鎹簱錛屾妸緇撴灉鎸夌収ID鏀懼叆鍒扮紦瀛樸?nbsp;
4) 鍒犻櫎銆佹洿鏂般佸鍔犳暟鎹殑鏃跺欙紝鍚屾椂鏇存柊緙撳瓨銆?br /> Hibernate鐨勪簩綰х紦瀛樼瓥鐣ワ紝鏄拡瀵逛簬ID鏌ヨ鐨勭紦瀛樼瓥鐣ワ紝瀵逛簬鏉′歡鏌ヨ鍒欐鏃犱綔鐢ㄣ備負姝わ紝Hibernate鎻愪緵浜嗛拡瀵規潯浠舵煡璇㈢殑Query Cache銆?br />2.3.2. 浠涔堟牱鐨勬暟鎹傚悎瀛樻斁鍒扮浜岀駭緙撳瓨涓紵
1 寰堝皯琚慨鏀圭殑鏁版嵁
2 涓嶆槸寰堥噸瑕佺殑鏁版嵁錛屽厑璁稿嚭鐜板伓灝斿茍鍙戠殑鏁版嵁
3 涓嶄細琚茍鍙戣闂殑鏁版嵁
4 鍙傝冩暟鎹?鎸囩殑鏄緵搴旂敤鍙傝冪殑甯擱噺鏁版嵁錛屽畠鐨勫疄渚嬫暟鐩湁闄愶紝瀹冪殑瀹炰緥浼氳璁稿鍏朵粬綾葷殑瀹炰緥寮曠敤錛屽疄渚嬫瀬灝戞垨鑰呬粠鏉ヤ笉浼氳淇敼銆?br />2.3.3. 涓嶉傚悎瀛樻斁鍒扮浜岀駭緙撳瓨鐨勬暟鎹紵
1 緇忓父琚慨鏀圭殑鏁版嵁
2 璐㈠姟鏁版嵁錛岀粷瀵逛笉鍏佽鍑虹幇騫跺彂
3 涓庡叾浠栧簲鐢ㄥ叡浜殑鏁版嵁銆?br />2.3.4. 甯哥敤鐨勭紦瀛樻彃浠?/strong>
Hibernater 鐨勪簩綰х紦瀛樻槸涓涓彃浠訛紝涓嬮潰鏄嚑縐嶅父鐢ㄧ殑緙撳瓨鎻掍歡錛?br />l EhCache錛氬彲浣滀負榪涚▼鑼冨洿鐨勭紦瀛橈紝瀛樻斁鏁版嵁鐨勭墿鐞嗕粙璐ㄥ彲浠ユ槸鍐呭瓨鎴栫‖鐩橈紝瀵笻ibernate鐨勬煡璇㈢紦瀛樻彁渚涗簡鏀寔銆?br />l OSCache錛氬彲浣滀負榪涚▼鑼冨洿鐨勭紦瀛橈紝瀛樻斁鏁版嵁鐨勭墿鐞嗕粙璐ㄥ彲浠ユ槸鍐呭瓨鎴栫‖鐩橈紝鎻愪緵浜嗕赴瀵岀殑緙撳瓨鏁版嵁榪囨湡絳栫暐錛屽Hibernate鐨勬煡璇㈢紦瀛樻彁渚涗簡鏀寔銆?br />l SwarmCache錛氬彲浣滀負緹ら泦鑼冨洿鍐呯殑緙撳瓨錛屼絾涓嶆敮鎸丠ibernate鐨勬煡璇㈢紦瀛樸?br />l JBossCache錛氬彲浣滀負緹ら泦鑼冨洿鍐呯殑緙撳瓨錛屾敮鎸佷簨鍔″瀷騫跺彂璁塊棶絳栫暐錛屽Hibernate鐨勬煡璇㈢紦瀛樻彁渚涗簡鏀寔銆?br />2.3.5. 閰嶇疆浜岀駭緙撳瓨鐨勪富瑕佹楠わ細
1) 閫夋嫨闇瑕佷嬌鐢ㄤ簩綰х紦瀛樼殑鎸佷箙鍖栫被錛岃緗畠鐨勫懡鍚嶇紦瀛樼殑騫跺彂璁塊棶絳栫暐銆傝繖鏄渶鍊煎緱璁ょ湡鑰冭檻鐨勬楠ゃ?br />2) 閫夋嫨鍚堥傜殑緙撳瓨鎻掍歡錛岀劧鍚庣紪杈戣鎻掍歡鐨勯厤緗枃浠躲?br />
1. 棣栧厛璁劇疆EhCache錛屽緩绔嬮厤緗枃浠秂hcache.xml錛岄粯璁ょ殑浣嶇疆鍦╟lass-path錛屽彲浠ユ斁鍒頒綘鐨剆rc鐩綍涓嬶細
<ehcache>
<diskStore path="c:\\ehcache\"/>
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
/>
<!-- 璁劇疆Category綾葷殑緙撳瓨鐨勬暟鎹繃鏈熺瓥鐣?nbsp;-->
<cache name="org.qiujy.domain.cachedemo.Category"
maxElementsInMemory="100"
eternal="true"
timeToIdleSeconds="0"
timeToLiveSeconds="0"
overflowToDisk="false"
/>
<!-- 璁劇疆Category綾葷殑products闆嗗悎鐨勭紦瀛樼殑鏁版嵁榪囨湡絳栫暐 -->
<cache name="org.qiujy.domain.cachedemo.Category.products"
maxElementsInMemory="500"
eternal="false"
timeToIdleSeconds="300"
timeToLiveSeconds="600"
overflowToDisk="true"
/>
<cache name="org.qiujy.domain.cachedemo.Product"
maxElementsInMemory="500"
eternal="false"
timeToIdleSeconds="300"
timeToLiveSeconds="600"
overflowToDisk="true"
/>
</ehcache>
閰嶇疆鐨勫厓绱犺鏄庯細
鍏冪礌鎴栧睘鎬?/strong>
鎻忚堪
<diskStore>
璁劇疆緙撳瓨鏁版嵁鏂囦歡鐨勫瓨鏀劇洰褰?br /><defaultCache>
璁劇疆緙撳瓨鐨勯粯璁ゆ暟鎹繃鏈熺瓥鐣?br /><cache>
璁懼畾鍏蜂綋鐨勫懡鍚嶇紦瀛樼殑鏁版嵁榪囨湡絳栫暐
姣忎釜鍛藉悕緙撳瓨浠h〃涓涓紦瀛樺尯鍩燂紝姣忎釜緙撳瓨鍖哄煙鏈夊悇鑷殑鏁版嵁榪囨湡絳栫暐銆傚懡鍚嶇紦瀛樻満鍒朵嬌寰楃敤鎴瘋兘澶熷湪姣忎釜綾諱互鍙婄被鐨勬瘡
2. 鍦℉ibernate閰嶇疆鏂囦歡涓緗細
<hibernate-configuration>
<session-factory>……<property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property><property name="cache.use_second_level_cache">true</property>……</session-factory></hibernate-configuration> 姝ゅ錛屽彲浠ユ妸cache.use_second_level_cache璁劇疆涓篺alse鍏抽棴鎵鏈夌殑hibernate浜岀駭緙撳瓨銆備絾姝ゅ睘鎬у鎸囧畾<cache>鐨勭被緙虹渷涓簍rue銆?font style="line-height: 1.3em" size="1">
3. 涓轟簡浣跨敤浜岀駭緙撳瓨錛岄渶瑕佸湪姣忎竴涓狧ibernate Entity涓婇厤緗?br />@Entity
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class Forest { ... }
@OneToMany(cascade=CascadeType.ALL, fetch=FetchType.EAGER)
@JoinColumn(name="CUST_ID")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public SortedSet getTickets() {
return tickets;
}
@Cache(
CacheConcurrencyStrategy usage(); (1)
String region() default ""; (2)
String include() default "all"; (3)
)
(1) usage: 鎻愪緵緙撳瓨瀵硅薄鐨勪簨鍔¢殧紱繪満鍒訛紝鍙夊兼湁浠ヤ笅鍑犵
(NONE, READ_ONLY, NONSTRICT_READ_WRITE(闈炰弗鏍艱鍐?, READ_WRITE, TRANSACTIONAL)
(2) region (optional): 鎸囧畾緙撳瓨鐨勫尯鍩燂紝榛樿鏄被鐨勫叏闄愬畾鍚嶃傚埄鐢ㄧ紦瀛樺尯鍩燂紝鍙互鏇寸簿紜殑鎸囧畾姣忎釜鍖哄煙鐨勭紦瀛樿秴鍓嶇瓥鐣ャ傚鏋滄寚瀹氫簡緙撳瓨鍖哄煙鍓嶇紑錛堝湪hibernate.cfg.xml涓緗甤ache.region_prefix灞炴т負涓涓瓧絎︿覆錛夛紝鍒欐墍鏈夌殑緙撳瓨鍖哄煙鍚嶅墠灝嗗姞涓婅繖涓墠緙銆?br />(3) include (optional): all to include all properties, non-lazy to only include non lazy properties (default all).
濡傛灉涓嶆槸浣跨敤annotation鐨勮瘽錛屽垯鏄湪Hbm鏂囦歡涓坊鍔燾ache usage="read-only"
http://blog.163.com/seara520@126/blog/static/7206930420102232340810/ 
]]>
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