1 package com.baobaotao.proxy; 鍦↗DK 1.3浠ュ悗鎻愪緵浜嗗姩鎬佷唬鐞嗙殑鎶鏈紝鍏佽寮鍙戣呭湪榪愯鏈熷垱寤烘帴鍙ｇ殑浠ｇ悊瀹炰緥銆傚湪Sun鍒氭帹鍑哄姩鎬佷唬鐞嗘椂錛岃繕寰堥毦鎯寵薄瀹冩湁澶氬ぇ鐨勫疄闄呯敤閫旓紝鐜板湪鎴戜滑緇堜簬鍙戠幇鍔ㄦ佷唬鐞嗘槸瀹炵幇AOP鐨勭粷濂藉簳灞傛妧鏈?/font>
JDK鐨勫姩鎬佷唬鐞嗕富瑕佹秹鍙婂埌java.lang.reflect鍖呬腑鐨勪袱涓被錛歅roxy鍜孖nvocationHandler銆傚叾涓璉nvocationHandler鏄竴涓帴鍙ｏ紝鍙互閫氳繃瀹炵幇璇ユ帴鍙ｅ畾涔夋í鍒囬昏緫錛屽湪騫墮氳繃鍙嶅皠鏈哄埗璋冪敤鐩爣綾葷殑浠ｇ爜錛屽姩鎬佸皢妯垏閫昏緫鍜屼笟鍔￠昏緫緙栫粐鍦ㄤ竴璧楓?/font>
鑰孭roxy涓篒nvocationHandler瀹炵幇綾誨姩鎬佸垱寤轟竴涓鍚堟煇涓鎺ュ彛鐨勪唬鐞嗗疄渚嬨傝繖鏍瘋涓瀹氬緢鎶借薄錛屾垜浠┈涓婄潃鎵嬪姩鐢≒roxy鍜孖nvocationHandler榪欎袱涓瓟娉曟垝瀵逛笂涓鑺備腑鐨勬ц兘鐩戣浠ｇ爜榪涜AOP寮忕殑鏀歸犮?/font>
棣栧厛錛屾垜浠粠涓氬姟綾籉orumServiceImpl 涓垹闄ゆц兘鐩戣鐨勬í鍒囦唬鐮侊紝浣縁orumServiceImpl鍙礋璐ｅ叿浣撶殑涓氬姟閫昏緫錛屽鎵紺猴細
浠ｇ爜娓呭崟 5 ForumServiceImpl錛氱Щ闄ゆц兘鐩戣妯垏浠ｇ爜
3 public class ForumServiceImpl implements ForumService {
4
5 public void removeTopic(int topicId) {
6 ①
7 System.out.println("妯℃嫙鍒犻櫎Topic璁板綍:"+topicId);
8 try {
9 Thread.currentThread().sleep(20);
10 } catch (Exception e) {
11 throw new RuntimeException(e);
12 }
13 ②
14 }
15 public void removeForum(int forumId) {
16 ①
17 System.out.println("妯℃嫙鍒犻櫎Forum璁板綍:"+forumId);
18 try {
19 Thread.currentThread().sleep(40);
20 } catch (Exception e) {
21 throw new RuntimeException(e);
22 }
23 ②
24 }
25 }
浠ｇ爜娓呭崟 6 PerformaceHandler 1 package com.baobaotao.proxy;
3 import java.lang.reflect.Method;
4
5 public class PerformaceHandler implements InvocationHandler {
6 private Object target;
7 public PerformaceHandler(Object target){//①target涓虹洰鏍囩殑涓氬姟綾?/span>
8 this.target = target;
9 }
10 public Object invoke(Object proxy, Method method, Object[] args)
11 throws Throwable {
12 PerformanceMonitor.begin(target.getClass().getName()+"."+ method.getName());
13 Object bj = method.invoke(target, args);//②閫氳繃鍙嶅皠鏂規(guī)硶璋冪敤鐩爣涓氬姟綾葷殑涓氬姟鏂規(guī)硶
14 PerformanceMonitor.end();
15 return obj;
16 }
17 }
浠ｇ爜娓呭崟 7 TestForumService錛氬垱寤轟唬鐞嗗疄渚?/span> 1 package com.baobaotao.proxy;
3 public class TestForumService {
4 public static void main(String[] args) {
5 ForumService target = new ForumServiceImpl();//①鐩爣涓氬姟綾?br /> 6 //② 灝嗙洰鏍囦笟鍔＄被鍜屾í鍒囦唬鐮佺紪緇囧埌涓璧?/span>
7 PerformaceHandler handler = new PerformaceHandler(target);
8 //③涓虹紪緇囦簡鐩爣涓氬姟綾婚昏緫鍜屾ц兘鐩戣妯垏閫昏緫鐨刪andler鍒涘緩浠ｇ悊綾?/span>
9 ForumService proxy = (ForumService) Proxy.newProxyInstance(
10 target.getClass().getClassLoader(),
11 target.getClass().getInterfaces(),
12 handler);
13 //④ 鎿嶄綔浠ｇ悊瀹炰緥
14 proxy.removeForum(10);
15 proxy.removeTopic(1012);
16 }
17 }
end monitor
com.baobaotao.proxy.ForumServiceImpl.removeForum鑺辮垂47姣銆?br />
begin monitor
妯℃嫙鍒犻櫎Topic璁板綍:1012
end monitor
com.baobaotao.proxy.ForumServiceImpl.removeTopic鑺辮垂26姣銆?/span>
鍥?1浠ｇ悊瀹炰緥鐨勬椂搴忓浘
鎴戜滑鍦ㄤ笂鍥句腑鐗瑰埆浣跨敤铏氱嚎闃村獎鐨勬柟寮忓閫氳繃浠ｇ悊鍣ㄥ垱寤虹殑ForumService瀹炰緥榪涜鍑告樉錛岃瀹炰緥鍐呴儴鍒╃敤PerformaceHandler鏁村悎妯垏閫昏緫鍜屼笟鍔￠昏緫銆傝皟鐢ㄨ呰皟鐢ㄤ唬鐞嗗璞＄殑鐨剅emoveForum()鍜宺emoveTopic()鏂規(guī)硶鏃訛紝涓婂浘鐨勫唴閮ㄨ皟鐢ㄦ椂搴忔竻鏅板湴鍛婅瘔浜嗘垜浠疄闄呬笂鎵鍙戠敓鐨勪竴鍒囥?/span>
]]>
]]>
闈㈠悜瀵硅薄鏄粠杞歡宸ョ▼鍩烘湰鍘熷垯錛堝鑰﹀悎銆佽仛鍚堛佸皝瑁咃級鐨勫熀紜涓婂彂灞曡搗鏉ョ殑錛岃屽叧緋繪暟鎹簱鍒欐槸浠?a title="鏁板" href="/wiki/%E6%95%B0%E5%AD%A6">鏁板鐞嗚鍙戝睍鑰屾潵鐨勶紝涓ゅ鐞嗚瀛樺湪鏄捐憲鐨勫尯鍒備負浜嗚В鍐寵繖涓笉鍖歸厤鐨勭幇璞★紝瀵硅薄鍏崇郴鏄犲皠鎶鏈簲榪愯岀敓銆?/p>
綆鍗曠殑璇達細ORM鐩稿綋浜?a class="new" title="涓戶鏁版嵁" href="/w/index.php?title=%E4%B8%AD%E7%B9%BC%E8%B3%87%E6%96%99&action=edit&redlink=1">涓戶鏁版嵁銆傚叿浣撳埌浜у搧涓婏紝渚嬪涓嬭竟鐨?a title="ADO.NET Entity Framework" href="/wiki/ADO.NET_Entity_Framework">ADO.NET Entity Framework銆侱LINQ涓疄浣撶被鐨勫睘鎬Table]灝辯畻鏄竴縐嶄腑緇ф暟鎹?/p>
瀵硅薄鍏崇郴鏄犲皠鎴愬姛榪愮敤鍦ㄤ笉鍚岀殑闈㈠悜瀵硅薄鎸佷箙灞備駭鍝佷腑錛屽錛?a class="new" title="Torque" href="/w/index.php?title=Torque&action=edit&redlink=1">Torque錛?a class="new" title="OJB" href="/w/index.php?title=OJB&action=edit&redlink=1">OJB錛?a title="Hibernate" href="/wiki/Hibernate">Hibernate錛?a title="TopLink" href="/wiki/TopLink">TopLink錛?a class="new" title="Castor JDO" href="/w/index.php?title=Castor_JDO&action=edit&redlink=1">Castor JDO錛?a class="new" title="TJDO" href="/w/index.php?title=TJDO&action=edit&redlink=1">TJDO錛?a title="Active Record" href="/wiki/Active_Record">Active Record錛?a title="NHibernate" href="/wiki/NHibernate">NHibernate錛?a title="ADO.NET Entity Framework" href="/wiki/ADO.NET_Entity_Framework">ADO.NET Entity Framework 絳夈?br /> 浠ヤ笂鏄淮鍩虹櫨縐戜腑瑙ｉ噴銆傛墍鐨勫緢瀹樺儦錛屽氨鏄鐨勬垜浠ぇ瀹朵竴鑸殑浜轟笉澶兘鐞嗚В銆傛垜涓漢鐨勭悊瑙ｅ氨鏄細瀵規(guī)垜浠繖浜涘JDBC甯哥敤鎿嶄綔闈炲父鍘屽︾殑浜烘潵浜嗕釜灝佽錛岀劧鍚庣粰鎴戜滑鍚勭甯哥敤鐨勬帴鍙ｏ紝鑰屼笖璁╂垜浠劅瑙変笉鍒版垜浠湪鎿嶇旱鏁版嵁搴擄紝鑰屽彧鏄湪璋冧漢瀹剁粰鐨勬帴鍙ｏ紝榪欐棤褰腑璁╂垜浠劅瑙夊埌寰堣垝鏈嶏紝寰堟儸鎰忋?br /> hibernate鍚屾牱鏄疧RM宸ュ叿錛岄偅涔堝畠緇欐垜浠彁渚涗簡閭ｄ簺鎺ュ彛鍛紵璁╂垜鍒椾婦鍑犱釜錛?br /> Session銆佽礋璐ｆ墽琛岃鎸佷箙鍖栧璞＄殑CRUD鎿嶄綔(CRUD鐨勪換鍔℃槸瀹屾垚涓?a target="_blank">鏁版嵁搴?/font>鐨勪氦嫻侊紝鍖呭惈浜嗗緢澶氬父瑙佺殑SQL璇彞銆?銆?br /> SessionFactory銆佽礋璐ｅ垵濮嬪寲Hibernate銆傚畠鍏呭綋鏁版嵁瀛樺偍婧愮殑浠ｇ悊錛屽茍璐熻矗鍒涘緩Session瀵硅薄銆傝繖閲岀敤鍒頒簡宸ュ巶妯″紡
Transaction銆?nbsp;璐熻矗浜嬪姟鐩稿叧鐨勬搷浣溿傚畠鏄彲閫夌殑錛屽紑鍙戜漢鍛樹篃鍙互璁捐緙栧啓鑷繁鐨勫簳灞備簨鍔″鐞嗕唬鐮?br /> Query銆丵uery鍜孋riteria鎺ュ彛璐熻矗鎵ц鍚勭鏁版嵁搴撴煡璇€傚畠鍙互浣跨敤HQL璇█鎴朣QL璇彞涓ょ琛ㄨ揪鏂瑰紡
Configuration銆佽礋璐ｉ厤緗茍鍚姩Hibernate錛屽垱寤篠essionFactory瀵硅薄銆?br />
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