锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产亚洲人成A在线V网站,亚洲av综合色区,亚洲一卡2卡3卡4卡5卡6卡http://m.tkk7.com/magibt/category/27985.htmlzh-cnSat, 08 Dec 2007 09:12:02 GMTSat, 08 Dec 2007 09:12:02 GMT60Class涓嶵ype鐨勫尯鍒笌鑱旂郴http://m.tkk7.com/magibt/articles/161288.htmlEdward'sEdward'sSat, 17 Nov 2007 14:34:00 GMThttp://m.tkk7.com/magibt/articles/161288.htmlhttp://m.tkk7.com/magibt/comments/161288.htmlhttp://m.tkk7.com/magibt/articles/161288.html#Feedback0http://m.tkk7.com/magibt/comments/commentRss/161288.htmlhttp://m.tkk7.com/magibt/services/trackbacks/161288.html鍘熶綔錛氬緪瀹剁

1: 綾誨瀷鐨勬蹇?

姒傚康錛氱被鍨嬪埢鍒掍簡涓緇勫煎強鍏朵笂鍙柦琛岀殑鎿嶄綔錛屽彲鐞嗚В涓哄奸泦鍜屾搷浣滈泦鏋勬垚鐨勪簩鍏冪粍銆?

綾誨瀷鐨勬蹇典笌鍊肩殑姒傚康鐩稿绔嬶紝鍓嶈呮槸紼嬪簭涓殑姒傚康錛屽悗鑰呭垯鏄▼搴忚繍琛屾椂鐨勬蹇碉紝涓よ呴氳繃鏍囪瘑鍊肩殑璇█鎴愬垎錛堜緥濡傦紝鍙橀噺銆佽〃杈懼紡絳夛級鑱旂郴璧鋒潵銆?

姣斿鍙橀噺v璇存槑涓哄叿鏈夌被鍨婽錛岀被鍨婽鎵鍒誨垝鐨勫奸泦涓簕v1錛寁2錛?#8230;vn錛?#8230;}錛屽垯鍙橀噺v榪愯鏃惰兘鍙栦笖鍙兘鍙栨煇涓獀i涓哄箋傜敱姝ゅ彲瑙侊紝綾誨瀷瑙勫畾浜嗗叿鏈夎綾誨瀷鐨勫彉閲忔垨琛ㄨ揪寮忕殑鍙栧艱寖鍥淬?

2: 綾諱笌綾誨瀷

A: 鍏辨?

鍦ㄥ璞″紡璇█涓紝“鍊?#8221;涓哄璞★紙鎴栧璞℃寚寮曪紝浣嗘湰璐ㄤ笂浠嶄負瀵硅薄錛夈傛墍浠ワ紝瀵硅薄寮忚璦涓殑綾誨瀷鍒誨垝浜嗕竴緇勫璞″強鍏朵笂鍙柦琛岀殑鎿嶄綔銆傜被鍨嬫墍鍒誨垝鐨勫璞$О涓虹被鍨嬬殑瀹炰緥銆傜被涔熷埢鍒掍簡涓緇勫璞°?

涓よ呯殑鍏辨у湪浜庝簩鑰呭潎鍒誨垝浜嗕竴緇勫璞″強鍏朵笂鐨勬搷浣滐紙鍦ㄥ墠闈㈠叧浜庣被鐨勮璁轟腑錛屽茍鏈己璋冪被鍒誨垝瀵硅薄涓婄殑鎿嶄綔榪欎竴浜嬪疄錛夛紝鎵浠ワ紝鏃㈠彲浠ヨ瀵硅薄鏄被鍨嬬殑瀹炰緥錛屼篃鍙互璇村璞℃槸綾葷殑瀹炰緥錛岀被鍨嬪拰綾誨湪涓庡璞$殑鍏崇郴涓婃槸鐩稿悓鐨勩備笉榪囷紝綾誨瀷嬈插埢鍒掍竴緇勫璞″強鍏朵笂鐨勬搷浣滐紝蹇呴』鍊熷姪浜庣被錛屽洜涓虹被鏄揪鍒拌繖縐嶇洰鐨勭殑鍞竴璁炬柦銆傜敱姝ゅ彲瑙侊紝綾誨瀷鏄互綾諱負鍩虹鐨勶紝鏄氳繃綾繪潵瀹氫箟鐨勶紝榪欎綋鐜頒簡浜岃呯殑鑱旂郴銆?

B: 鍖哄埆

l 浣滅敤涓嶅悓

綾繪槸紼嬪簭鐨勬瀯閫犲崟浣嶏紝鏄弿榪頒竴緇勫璞″強鍏朵笂鎿嶄綔鐨勫敮涓璇█鎴愬垎錛屾晠鍏朵綔鐢ㄤ富瑕佹槸鍏蜂綋鎻忚堪榪欑粍瀵硅薄錛屾彁渚涜繍琛屾椂鍒涘緩榪欎簺瀵硅薄鐨?#8220;妯℃澘”銆備緥濡傦紝鍩轟簬綾婚棿鐨勭戶鎵垮叧緋葷殑媧劇敓綾誨畾涔夎鏂藉氨鍙嶆槧浜嗙被鍦ㄦ弿榪板璞℃柟闈㈢殑浣滅敤銆?

綾誨瀷鍒欐槸鏍囧織鍙橀噺鎴栬〃杈懼紡鍙栧艱寖鍥寸殑涓縐嶈璦鎴愬垎錛屽叾浣滅敤涓昏鏄榪欎簺鍙橀噺鎴栬〃杈懼紡榪愯鏃剁殑鍙栧艱繘琛岀害鏉熴備緥濡傦紝瀵硅祴鍊艱鍙ュ乏閮ㄧ殑鍙橀噺鍜屽彸閮ㄧ殑琛ㄨ揪寮忕殑綾誨瀷鍖歸厤媯鏌ュ氨鍙嶆槧浜嗙被鍨嬬殑綰︽潫浣滅敤銆?

l 涓庡璞¤仈緋葷殑绱у瘑紼嬪簭涓嶅悓

綾繪弿榪板璞$殑鍏蜂綋褰㈠紡鍜屽叾涓婂彲鏂借鐨勫叿浣撴搷浣滐紝涓斿己璋冩墍鎻忚堪鐨勪竴緇勫璞$殑鍏辨э紝鍥犺岋紝涓庡叿浣撳璞¤仈緋昏緝瀵嗗垏錛岃屼笌瀵硅薄闆嗙殑澶у皬鍒欒仈緋昏緝灝戙?

綾誨瀷寮鴻皟鎵鎻忚堪鐨勪竴緇勫璞$殑鑼冨洿鍜屽彲鏂借鎿嶄綔鐨勮寖鍥達紝涓庡璞¢泦鐨勫ぇ灝忚仈緋昏緝瀵嗗垏錛岃屼笌鍏朵腑鍏蜂綋瀵硅薄鍒欒仈緋昏緝灝戙?

l 騫朵笉鏄墍鏈夌被閮藉彲鐩存帴浣滀負綾誨瀷浣跨敤

綾繪槸綾誨瀷鐨勫熀紜錛岀被鍨嬮潬綾繪潵瀹氫箟錛屾湁浜涚被鍙洿鎺ヤ綔涓虹被鍨嬫潵浣跨敤錛屽湪榪欑鎰忎箟涓嬶紝鎴戜滑涔熷彲縐拌繖浜涚被鏄被鍨嬨?

浣嗘槸錛屼篃鏈変竴浜涚被涓嶈兘鐩存帴浣滀負綾誨瀷鏉ヤ嬌鐢紝榪欐槸鍥犱負錛屼粠綾誨瀷鐨勭害鏉熶綔鐢ㄦ潵鐪嬶紝綾誨瀷寮鴻皟鎵鍒誨垝鐨勫璞$殑紜畾鎬э紝鍗沖璞¤寖鍥寸殑紜畾鎬с傚洜姝わ紝鍙湁鎵鎻忚堪鐨勫璞$殑鑼冨洿紜畾鐨勭被鎵嶅彲鐩存帴鐢ㄤ綔綾誨瀷銆?/p>

Edward's 2007-11-17 22:34 鍙戣〃璇勮
]]>
Jakarta-Common-BeanUtils浣跨敤絎旇http://m.tkk7.com/magibt/articles/160583.htmlEdward'sEdward'sWed, 14 Nov 2007 08:35:00 GMThttp://m.tkk7.com/magibt/articles/160583.htmlhttp://m.tkk7.com/magibt/comments/160583.htmlhttp://m.tkk7.com/magibt/articles/160583.html#Feedback0http://m.tkk7.com/magibt/comments/commentRss/160583.htmlhttp://m.tkk7.com/magibt/services/trackbacks/160583.html 杞嚜錛?a >http://blog.csdn.net/fanjun/archive/2005/02/17/291662.aspx

1. 姒傝堪

BeanUtils涓昏鎻愪緵浜嗗浜嶫avaBean榪涜鍚勭鎿嶄綔錛?

BeanUtils涓鍏卞垎4涓寘錛?

  • org.apache.commons.beanutils
  • org.apache.commons.beanutils.converters
  • org.apache.commons.beanutils.locale
  • org.apache.commons.beanutils.locale.converters

converters 灝辨槸涓撻棬澶勭悊涓嶅悓浼犲叆鐨?object 璇ュ浣曡漿鎹? locale 鍛? 灝辨槸涓轟簡鍥介檯鍖栫殑澶勭悊銆傚叾涓笂闈袱涓槸BeanUtils鐨勯粯璁ゅ疄鐜幫紝瀹冩病鏈夐拡瀵規湰鍦板寲鐨勪換浣曞鐞嗭紝榪欎釜鍙互鎻愰珮鎵ц鏁堢巼銆?

2. org.apache.commons.beanutils

2.1.BeanUtil

1銆佽繖涓寘涓昏鎻愪緵鐢ㄤ簬鎿嶄綔JavaBean鐨勫伐鍏風被錛孞akarta-Common-BeanUtils鐨勪富瑕佸姛鑳介兘鍦ㄨ繖涓寘閲屽疄鐜般?/p>
public class Employee {
    public Address getAddress(String type);
    public void setAddress(String type, Address address);
    public Employee getSubordinate(int index);
    public void setSubordinate(int index, Employee subordinate);
    public String getFirstName();
    public void setFirstName(String firstName);
    public String getLastName();
    public void setLastName(String lastName);
}

 

2銆丅eanUtils鍙互鐩存帴get鍜宻et涓涓睘鎬х殑鍊箋傚畠灝唒roperty鍒嗘垚3縐嶇被鍨嬶細

  • Simple鈥斺旂畝鍗曠被鍨嬶紝濡係tirng銆両nt……
  • Indexed鈥斺旂儲寮曠被鍨嬶紝濡傛暟緇勩乤rrayList……
  • Maped鈥斺旇繖涓笉鐢ㄨ涔熻鐭ラ亾錛屽氨鏄寚Map鍟︼紝姣斿HashMap……

璁塊棶涓嶅悓綾誨瀷鐨勬暟鎹彲浠ョ洿鎺ヨ皟鐢ㄥ嚱鏁癵etProperty鍜宻etProperty銆傚畠浠兘鍙湁2涓弬鏁幫紝絎竴涓槸JavaBean瀵硅薄錛岀浜屼釜鏄鎿嶄綔鐨勫睘鎬у悕銆?

Company c = new Company();
c.setName("Simple");
瀵逛簬Simple綾誨瀷錛屽弬鏁頒簩鐩存帴鏄睘鎬у悕鍗沖彲
//Simple
    System.out.println(BeanUtils.getProperty(c, "name"));
瀵逛簬Map綾誨瀷錛屽垯闇瑕佷互“灞炴у悕錛坘ey鍊鹼級”鐨勫艦寮?/div>
//Map
    System.out.println(BeanUtils.getProperty(c, "address (A2)"));
    HashMap am = new HashMap();
    am.put("1","234-222-1222211");
    am.put("2","021-086-1232323");
    BeanUtils.setProperty(c,"telephone",am);
    System.out.println(BeanUtils.getProperty(c, "telephone (2)"));
瀵逛簬Indexed錛屽垯涓?#8220;灞炴у悕[绱㈠紩鍊糫”錛屾敞鎰忚繖閲屽浜嶢rrayList鍜屾暟緇勯兘鍙互鐢ㄤ竴鏍風殑鏂瑰紡榪涜鎿嶄綔銆?/div>
//index
    System.out.println(BeanUtils.getProperty(c, "otherInfo[2]"));
    BeanUtils.setProperty(c, "product[1]", "NOTES SERVER");
    System.out.println(BeanUtils.getProperty(c, "product[1]"));
 
褰撶劧榪?縐嶇被涔熷彲浠ョ粍鍚堜嬌鐢ㄥ暒錛?/div>
//nest
    System.out.println(BeanUtils.getProperty(c, "employee[1].name"));
 

3銆佹澶栵紝榪樻湁涓涓緢閲嶈鐨勬柟娉昪opyProperty錛屽彲浠ョ洿鎺ヨ繘琛孊ean涔嬮棿鐨刢lone銆?

Company c2 = new Company();
BeanUtils.copyProperties(c2, c);

浣嗘槸榪欑copy閮芥槸嫻呮嫹璐濓紝澶嶅埗鍚庣殑2涓狟ean鐨勫悓涓涓睘鎬у彲鑳芥嫢鏈夊悓涓涓璞$殑ref錛岃繖涓湪浣跨敤鏃惰灝忓績錛岀壒鍒槸瀵逛簬灞炴т負鑷畾涔夌被鐨勬儏鍐點?

4銆佹渶鍚庤繕鏈塸opulate錛屽畠鐢ㄤ簬灝嗕竴涓猰ap鐨勫煎~鍏呭埌涓涓猙ean涓?

2.2.LazyDynaBean

瀹冨疄鐜頒竴涓姩鎬佺殑Bean錛屽彲浠ョ洿鎺ュ線閲岄潰鍔犲叆灞炴э紝浣滀負涓涓狫avaBean涓鏍蜂嬌鐢紝涔熷彲浠ョ敤涓婇潰鐨凚eanUtils鎴杇et/set鏂規硶榪涜鎿嶄綔錛岃屼笉鐢ㄤ簨鍏堝畾涔変竴涓爣鍑嗙殑JavaBean綾誨暒錛氾級

璁板緱鍦↗2ee璁捐妯″紡涓湁涓縐峍alue Object鐨勬ā寮忥紝鐢ㄤ簬鍦∕VC鍚勫眰涔嬮棿浼犻掓暟鎹紝閬垮厤鐩存帴浼犻掑ぇ涓氬姟瀵硅薄寮曡搗鐨勬ц兘闂錛屼負浜嗛伩鍏嶅湪欏圭洰涓嚭鐜板緢澶欱ean綾伙紝鍦ㄤ功涓彁渚涗簡涓涓姩鎬乂alue Object鐨勫疄鐜幫紙閫氳繃鎵╁睍Map錛夈傝繖閲孡azyDynaBean鍒欏彲浠ヤ綔涓轟竴縐嶆洿鍔犳垚鐔熴佺ǔ瀹氱殑瀹炵幇鏉ヤ嬌鐢ㄣ?/p>
//榪欓噷浣跨敤LazyDynaMap錛屽畠鏄疞azyBean鐨勪竴涓交閲忕駭瀹炵幇
      LazyDynaMap dynaBean1 = new LazyDynaMap();
      dynaBean1.set("foo", "bar");                  // simple
      dynaBean1.set("customer", "title", "Mr");        // mapped
      dynaBean1.set("address", 0, "address1");         // indexed
      System.out.println(dynaBean1.get("address",0));
      Map myMap = dynaBean1.getMap();           // retrieve the Map
      System.out.println(myMap.toString());

涓婇潰鐨勪緥瀛愬彲浠ョ湅鍒幫紝瀹冨彲浠ュ湪set鏃惰嚜鍔ㄥ鍔燽ean鐨刾roperty錛堟棦璧嬪肩殑鍚屾椂澧炲姞Bean涓殑property錛夛紝鍚屾椂涔熸敮鎸?涓被鍨嬬殑property錛屽茍涓擫azyDynaMap榪樺彲浠ュ鍑轟負map銆?

瀵逛簬榪欎釜綾昏繕鏈変袱涓噸瑕佺殑Field瑕佹敞鎰忥細

returnnull鈥斺旀寚瀹氬湪get鏂規硶浣跨敤浜嗕竴涓病鏈夊畾涔夎繃鐨刾roperty鏃訛紝DynaBean鐨勮涓恒?/p>
//鍙栫殑瀛楁鐨勪俊鎭?/span>
      dynaBean1.setReturnNull(true);//璁句負ture銆傝嫢Bean涓病鏈夋瀛楁錛岃繑鍥瀗ull
     //榛樿涓篺alse銆傝嫢Bean涓病鏈夋瀛楁錛岃嚜鍔ㄥ鍔犱竴涓細錛?/span>
      System.out.println(dynaBean1.get("aaa"));//姝ゆ椂榪斿洖null
     Restricted鈥斺旀寚瀹氭槸鍚﹀厑璁告敼鍙樿繖涓猙ean鐨刾roperty銆?/pre>
      //MutableDynaClass.setRestricted璁句負true鍚庯紝瀛楁涓嶅彲鍐嶅鍒犲拰淇敼.
     //榛樿涓篺alse錛屽厑璁稿鍒犲拰淇敼
      dynaBean1.setRestricted(true);
     dynaBean1.set("test","error");//榪欓噷浼氬嚭閿欙紒

閫氳繃璁劇疆榪欎袱涓睘鎬э紝鍙互闃叉鎰忓淇敼DynaBean鐨刾roperty銆傚湪璁捐鏋舵瀯鏃訛紝浣犲彲浠ュ湪鍚庡彴浠庢暟鎹〃鎴杧ml鏂囦歡鑷姩浜х敓DynaBean錛屽湪浼犲埌鎺у埗灞傚拰琛ㄧず灞備箣鍓嶈緗笂榪板睘鎬т嬌鍏禕ean緇撴瀯涓嶅厑璁鎬慨鏀癸紝濡傛灝變笉鍙兘鏃犳剰涓慨鏀笲ean鍖呭惈鐨勫睘鎬?#8230;…榪欐牱鏃㈠彲浠ヤ韓鐢ㄥ畠鐨勪究鍒╋紝鏈夊彲浠ラ槻姝㈢敱姝ゅ紩鍏ョ殑閿欒鍙兘錛岃璁¤呭疄鍦ㄦ繁寰楀伔鎳掔殑綺鵑珦鍟婏紒錛侊紒錛侊紒

3. 鍏朵粬

3.1.BeanUtils鍜孭ropertyUtils

榪欎袱涓被鍑犱箮鏈変竴鎽鎬竴鏍風殑鍔熻兘錛屽敮涓鐨勫尯鍒槸錛欱eanUtils鍦ㄥBean璧嬪兼槸浼氳繘琛岀被鍨嬭漿鍖栥備婦渚嬫潵璇翠篃灝辨槸鍦╟opyProperty鏃跺彧瑕佸睘鎬у悕鐩稿悓錛屽氨綆楃被鍨嬩笉鍚岋紝BeanUtils涔熷彲浠ヨ繘琛宑opy錛涜孭ropertyBean鍒欏彲鑳戒細鎶ラ敊錛侊紒

閽堝涓婇潰鐨勪緥瀛愶紝鏂板緩涓涓狢ompany2鐨勭被錛屽叾涓唬鐮佷笌Company涓鏍鳳紝鍙槸灝唎therinfo浠嶴tring[]鏀逛負String銆?/p>
      Company c = init();
      Company2 c2 = new Company2();
      BeanUtils.copyProperties(c2,c);
//      PropertyUtils.copyProperties(c2,c); 榪欏彞浼氭姤閿欙紒錛?/span>
      System.out.println(c2.getOtherInfo());

褰撶劧2涓狟ean涔嬮棿鐨勫悓鍚嶅睘鎬х殑綾誨瀷蹇呴』鏄彲浠ヨ漿鍖栫殑錛屽惁鍒欑敤BeanUtils涓鏍蜂細鎶ラ敊銆?

鑻ュ疄鐜頒簡org.apache.commons.beanutils.Converter鎺ュ彛鍒欏彲浠ヨ嚜瀹氫箟綾誨瀷涔嬮棿鐨勮漿鍖栥?

鐢變簬涓嶅仛綾誨瀷杞寲錛岀敤PropertyUtils鍦ㄩ熷害涓婁細鏈夊緢澶ф彁楂橈紒

姝ゅ錛屼笉浣滅被鍨嬭漿鍖栬繕鏈変竴涓ソ澶勶紝濡備笅闈㈢殑浠g爜錛?/p>
      //test data type convert
//BeanUtils榪斿洖鐨勬槸String
//      ArrayList a1 = BeanUtils.getProperty(c,"product"); 
//鍙栧嚭鍚庣洿鎺ヨ杞負String
      System.out.println("--" + BeanUtils.getProperty(c,"product"));     
//PropertyUtils榪斿洖鐨勬槸Object
      ArrayList a = (ArrayList)PropertyUtils.getProperty(c,"product");
      System.out.println("--" + a.get(1));

鐢˙eanUtils鏃犳硶榪斿洖涓涓璞★紙闄ら潪鑷繁鍐欎竴涓狢onverter錛夛紝瀹冧細鑷姩榪涜綾誨瀷杞寲錛岀劧鍚庤繑鍥濻tring銆傚浜庢兂榪斿洖java綾繪垨鑷畾涔夌被鐨勮瘽錛岃繕鏄笉瑕佽佸畠澶ч┚杞寲浜嗐?/p>

3.2.Utils綾?/strong>

鎵鏈夌殑XXXUtils綾婚兘鎻愪緵鐨勬槸闈欐佹柟娉曪紝鍙互鐩存帴璋冪敤錛屽叾涓昏瀹炵幇閮藉湪鐩稿簲鐨刋XXUtilsBean涓細

BeanUtils 鈥斺?gt; BeanUtilsBean

ConvertUtils 鈥斺?gt; ConvertUtilsBean

PropertyUtils 鈥斺?gt; PropertyUtilsBean

鍏舵剰鎬濈湅綾誨悕涔熷簲璇ョ煡閬撶殑宸笉澶氫簡錛屾垜灝變笉鍐嶅簾璇濆暒錛佸綋鐒朵綘涔熷彲浠ョ洿鎺ヨ皟鐢ㄩ偅浜沊XXUtilsBean錛屽姛鑳介兘涓鏍鳳紒



Edward's 2007-11-14 16:35 鍙戣〃璇勮
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