鑰冭檻鐢ㄩ潤鎬佸伐鍘傛柟娉曚唬鏇挎瀯閫犲櫒
Tips:榪欓噷鐨勯潤鎬佸伐鍘傛柟娉曢潪璁捐妯″紡鐨勯潤鎬佸伐鍘傛柟娉?/span>
1銆佺浉瀵規瀯閫犲櫒鐨勪紭鍔匡細
1.1銆侀潤鎬佸伐鍘傛柟娉曟湁鍚嶇О錛?/span>
鍥犱負鏋勯犲櫒鍙兘鏈変竴涓壒瀹氱殑絳懼悕錛屾墍浠ヨ鎻愪緵澶氫釜鏋勯犲櫒蹇呴』瑕侀氳繃鍙傛暟鍒楄〃鐨勯『搴忎笂涓嶅悓鏉ュ疄鐜幫紝榪欐牱瑕佹眰鐢ㄦ埛璁頒綇鍚勭鏋勯犲櫒錛屽鏋滄病鏈夌浉鍏蟲枃妗ｏ紝瀹規槗鍑虹幇閿欒銆傦紙eclipse涓湁鑷姩媯嫻嬪姛鑳斤紝涓嶈繃浠庤璦鐨勮搴﹁繖鏍瘋繕鏄湁闂鐨勶級鑰屽浜庨潤鎬佸伐鍘傛柟娉曪紝褰撲竴涓被闇瑕佸涓甫鏈夌浉鍚屾爣絳懼悕寰楁瀯閫犲櫒鏃訛紝灝辯敤闈欐佸伐鍘傛柟娉曚唬鏇挎瀯閫犲櫒錛屽茍鎱庨噸鐨勯夋嫨鍚嶇О浠ヤ究紿佸嚭瀹冧滑涔嬮棿鐨勫尯鍒?/span>
1.2銆佷笉鐢ㄦ瘡嬈¤皟鐢ㄧ殑鏃跺欓兘鏂板緩涓涓璞?/span>
Java涓垱寤哄璞＄殑鎴愭湰鏄潪甯稿ぇ鐨勶紝鍥犳浣跨敤闈欐佸伐鍘傛柟娉曠殑鍚屾椂錛屽彲浠ラ鍏堟瀯寤哄ソ鐨勫疄渚嬶紝鎴栬呭皢鏋勫緩濂界殑瀹炰緥緙撳瓨璧鋒潵錛岃繘琛岄噸澶嶅埄鐢紝閬垮厤鍒涘緩涓嶅繀瑕佺殑瀵硅薄銆?/span>
Such as :Boolean.valueOf()錛屾案榪滀笉鍒涘緩瀵硅薄
Public static Boolean valueOf(Boolean b) {
Return b ? Boolean.TRUE : Boolean.FALSE;
}
Ps:鎴戜滑鑷繁鍐欑▼搴忕殑鏃跺欙紝鍙互閫氳繃enum鏉ユ帶鍒剁被鍦ㄦ煇涓椂鍒婚偅浜涘疄渚嬪瓨鍦ㄣ傝繖浜涚被琚О涓哄疄渚嬪彈鎺х殑綾匯?/span>
1.3銆佸彲浠ヨ繑鍥炶繑鍥炲師綾誨瀷鐨勪換浣曞瓙綾誨瀷鐨勫璞?/span>
1.3.1銆佽繖閲屽皢綾誨緱瀛愮被榪涜闅愯棌錛岄氳繃API榪斿洖瀵硅薄錛屽悓鏃跺張涓嶄細浣垮璞＄殑綾誨彉鎴愬叡鏈夈傚悓鏃惰繖涔熶負閽堝鎺ュ彛緙栫▼鎻愪緵浜嗕究鍒┿傚洜涓烘帴鍙ｄ笉鑳芥湁闈欐佹柟娉曪紙闈欐佹柟娉曞睘浜庣被鎵鎷ユ湁錛夛紝鍒欏皢鎺ュ彛Types涓殑闈欐佸伐鍘傛柟娉曡鏀懼湪涓涓悕涓?/span>Types鐨勪笉鍙疄渚嬪寲鐨勭被涓?/span>
API涓疄鐜板氨鏄?/span>Collecion鍜?/span>Collections銆?/span>
Collection鏄?/span>java涓殑闆嗗悎綾葷殑鎺ュ彛錛屽畠鎻愪緵浜嗛泦鍚堢被鎵鍏辨湁鐨勬柟娉?/span>
Collections鏄敱Collection涓婅繘琛屾搷浣滄垨榪斿洖Collection鐨勯潤鎬佹柟娉曠粍鎴愩備緥濡傚畠鎻愪緵浜嗕笉鍙慨鏀圭殑闆嗗悎錛屽悓姝ラ泦鍚堢瓑銆傞氳繃榪欑鏂瑰紡姣斿鍑?/span>32涓嫭绔嬪叕鏈夌被寰楀疄鐜版柟寮忚灝忓緱澶氥?/span>
1.3.2銆佸叕鏈夌殑闈欐佸伐鍘傛柟娉曟墍榪斿洖鐨勫璞＄殑綾諱笉浠呭彲浠ユ槸闈炲叕鏈夌殑錛岃屼笖璇ョ被榪樺彲浠ラ殢鐫姣忔璋冪敤鑰屽彂鐢熷彉鍖栵紝榪欏彇鍐充簬闈欐佸伐鍘傛柟娉曠殑鍙傛暟鍊箋?/span>
API涓疄鐜版槸 EnumSet綾?/span>
涔︿腑璇達細濡傛灉瀹冪殑鍏冪礌鏈?/span>64涓垨鑰呮洿灝戯紝闈欐佸伐鍘傛柟娉曞氨榪斿洖浜嗕竴涓?/span>RegalarEnumSet瀹炰緥錛岀敤鍗曚釜long鏀寔錛涘鏋滄灇涓劇被鍨嬫湁65涓垨鑰呮洿澶氱殑鍏冪礌錛屽伐鍘傚氨榪斿洖JumboEnumSet綾誨瀷錛岀敤long鏁扮粍榪涜鏀寔銆?/span>
Ps:鏌ラ槄浜嗕笅jdk api娌℃湁鎵懼埌鐩稿叧鐨勫唴瀹廣備笉榪囩悊瑙ｄ笂娌′粈涔堥毦搴︼紝鏍規嵁浼犲叆鍙傛暟鐨勯噺銆傚簳灞傚姩鎬侀夋嫨瀹炵幇鐨勬柟寮忚屽凡銆?/span>
1.3.3銆侀潤鎬佸伐鍘傛柟娉曡繑鍥炵殑瀵硅薄鎵灞炵殑绱紝鍦ㄧ紪鍐欒闈欐佸伐鍘傛柟娉曠殑綾繪椂鍙互涓嶅繀瀛樺湪銆?/span>
鏈嶅姟鑰呮鏋訛細澶氫釜鏈嶅姟鎻愪緵鑰呭疄鐜頒簡涓涓湇鍔★紝緋葷粺涓烘湇鍔℃彁渚涜呯殑瀹㈡埛绔彁渚涘涓疄鐜幫紝騫舵妸浠栦滑浠庡涓疄鐜頒腑瑙ｈ﹀嚭鏉ャ?/span>
鏈嶅姟鎻愪緵鑰呮鏋朵笁涓噸瑕佺殑緇勪歡錛?/span>
鏈嶅姟鎺ュ彛錛?/span>Service Interface錛夛細鎻愪緵鑰呭疄鐜扮殑;
鎻愪緵鑰呮敞鍐岀殑API(provider Registration API)錛岀郴緇熺敤鏉ユ敞鍐屽疄鐜扮殑錛岃瀹㈡埛绔繑鍥炲畠浠殑
鏈嶅姟璁塊棶API(Service Registration API),瀹㈡埛绔敤鏉ヨ幏鍙栨湇鍔＄殑瀹炰緥鐨勩?/span>
API涓疄鐜版槸JDBC鐨勬湇鍔?/span>
姣忎釜db鎻愪緵鑷繁鐨?/span>*.Jar鍖呮潵瀹炵幇DB鐨勬搷浣滃嵆Driver錛屽畠浠伒浠庝竴濂楁爣鍑嗐傝繖灝辨槸鏈嶅姟鎺ュ彛
JDK涓彁渚涚殑DriverManagere.registerDriver鏄彁渚涜呮敞鍐岀殑API,
DriverManager.getConnection()鏄湇鍔¤闂?/span>API.
Ps:濡傛灉瀵硅繖涓閮ㄥ垎涓嶆槸寰堢悊瑙ｇ殑璇濓紝寮虹儓鎺ㄨ崘鍘熶功涓?/span>P7鐨?/span>code…涓鐪嬪氨鏄庣櫧浜?/span>
1.4銆佸湪鍒涘緩鍙傛暟鍖栫被鍨嬪疄渚嬬殑鏃跺欙紝瀹冧滑浣夸唬鐮佸彉寰楁洿鍔犵畝媧?/span>
榪欓噷闈富瑕佹彁鍒扮殑鏄被鍨嬫帹瀵?/span>(type reference)銆傛墍璋撶被鍨嬫帹瀵鹼紝鍗蟲牴鎹綘瀹氫箟鐨勮繑鍥炲璞＄殑綾誨瀷鏉ユ帹瀵煎疄渚嬪寲鐨勭被鍨?/span>(涓漢鎰熻铏界劧寰堟柟渚匡紝鏈夌偣涓嶉潬璋卞晩)
涔︿腑緇欑殑浠ｇ爜瀹炰緥濡備笅錛?/span>
Public static <K,V> HashMap<K, V> newInstance() {
return new HashMap<K, V>();
}
Map<Strinng, List<String>> m = HashMap.newInstance();
2銆侀潤鎬佸伐鍘傜殑緙虹偣
2.1銆佺被濡傛灉涓嶅惈鍏湁鐨勬垨鑰呭彈淇濇姢鐨勬瀯閫犲櫒錛屽氨涓嶈兘琚瓙綾誨寲銆?/span>
榪欓噷鐨勪富瑕佸師鍥犲氨鏄紝瀛愮被鐨勬柟娉曠殑鑼冨洿鏉冮檺姣旂埗綾繪洿涓ユ牸銆備功涓篃鎻愬埌浜嗭紝榪欏叾瀹炴槸涓紭鐐廣傚洜涓虹粍鍚堟瘮緇ф壙鏇村簲璇ョ敤銆?/span>
2.2銆佸拰鍏朵粬闈欐佹柟娉曞疄闄呬笂娌℃湁浠諱綍鍖哄埆銆?/span>
榪欎釜綰補鏄粠java doc鏂逛究鏌ヨ鐨勮搴︽潵璇寸殑,so I don’t care it
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