鍏跺疄Hibernate鏈韓鏄釜鐙珛鐨勬鏋訛紝瀹冧笉闇瑕佷換浣晈eb server鎴朼pplication server鐨勬敮鎸併傜劧鑰岋紝澶у鏁扮殑Hibernate鍏ラ棬浠嬬粛閮藉姞鍏ヤ簡寰堝闈濰ibernate鐨勪笢瑗匡紝姣斿: Tomcat, Eclipse, Log4J,Struts, XDoclet, 鐢氳嚦JBoss銆傝繖瀹規槗璁╀漢浜х敓Hibernate澶嶆潅闅炬噦鐨勮瑙ｏ紝鐗瑰埆鏄墦鍑諱簡鍒濆鑰呯殑縐瀬鎬с?/p>
鍦ㄨ繖綃囨枃绔犲皢涓嶆秹鍙奅clipse, log4j, Struts, Tomcat, XDoclet錛屽拰JBoss銆傛湰鏂囩殑鐩殑鏄紨紺轟竴涓婬ibernate鐨勫畨瑁呰繃紼嬩互鍙婃渶鍩烘湰鐨勫姛鑳斤紝浠庤岀粰鍒濆鑰呬竴涓綆寰椾笉鑳藉啀浣庣殑鍏ラ棬闂ㄦ銆?/p>
涓嬭澆鏂囦歡
浣犻渶瑕丣ava SDK銆?Hibernate鍖呫丄nt鍖呫佸拰JDBC Driver銆?/p>
1銆丠ibernate鍖呬笅杞藉湴鍧:
http://prdownloads.sourceforge.net/hibernate/?sort_by=date&sort=desc
2銆丄nt鍖呬笅杞藉湴鍧:
http://apache.130th.net/ant/binaries/apache-ant-1.6.1-bin.zip
3銆丣DBC Driver瑕佹牴鎹綘鐢ㄧ殑database鏉ュ畾錛屼竴鑸琩atabase瀹樻柟緗戠珯涓婇兘浼氭湁銆侶ibernate鏀寔甯哥敤鐨刣atabase錛屾瘮濡?MySQL, Oracle, PostgreSQL, 鍜孧S-SQL Server銆傝繖浜涙暟鎹簱閮芥湁JDBC Driver:
Oracle JDBC Driver涓嬭澆鍦板潃(涓嬭澆鍓嶅繀欏誨悓鎰廜racle鍗忚涔?
http://otn.oracle.com/software/htdocs/distlic.html?/software/tech/java/sqlj_jdbc/htdocs/jdbc9201.html
MySQL JDBC Driver涓嬭澆鍦板潃
http://dev.mysql.com/downloads/connector/j/3.0.html
PostgreSQL JDBC Driver涓嬭澆鍦板潃
http://jdbc.postgresql.org/download.html
MS-SQL Server JDBC Driver涓嬭澆鍦板潃
http://www.microsoft.com/downloads/details.aspx?FamilyID=9f1874b6-f8e1-4bd6-947c-0fc5bf05bf71&displaylang=en
4銆佸皢Hibernate鍖呭拰Ant鍖呭垎鍒В鍘嬭嚦c:\dev\涓?姝ょ洰褰曚笉閲嶈錛屼綘鍙互鎹㈠叾瀹冧換浣曠洰褰?銆?/p>
閰嶇疆鐜
1>銆佷綘闇瑕佹坊鍔犱竴涓柊鐨勭幆澧冨彉閲? ANT_HOME錛岃瀹冩寚鍚慶:\dev\<浣犵殑ANT鍖呮墍鍦ㄧ洰褰?gt;銆傚茍鍦≒ATH鐜鍙橀噺閲屾坊鍔?ANT_HOME%\bin銆?/p>
2>銆佷綘闇瑕佹坊鍔犱竴涓柊鐨勭幆澧冨彉閲? JAVA_HOME錛岃瀹冩寚鍚戜綘鐨刯2sdk鏍圭洰褰曘傚茍鍦≒ATH鐜鍙橀噺閲屾坊鍔?JAVA_HOME%\bin銆?/p>
3>銆佸垱寤轟竴涓」鐩洰褰曪紝姣斿c:\workspace\My1stHibernate銆?/p>
鍦ㄩ」鐩洰褰曚笅錛屽彟澶栧垱寤轟笁涓洰褰? src, classes, lib銆?/p>
鍦╨ib鐩綍涓嬶紝鍒涘緩涓や釜鐩綍: hibernate鍜宒b銆?/p>
榪欐牱浣犳湁浜嗗涓嬬殑鏂囦歡緇撴瀯:
c:\workspace\My1stHibernate\
c:\workspace\My1stHibernate\src
c:\workspace\My1stHibernate\classes
c:\workspace\My1stHibernate\lib
c:\workspace\My1stHibernate\lib\hibernate
c:\workspace\My1stHibernate\lib\db
4銆佸皢c:\dev\<浣犵殑Hibernate鍖呮墍鍦ㄧ洰褰?gt;\hibernate2.jar鏂囦歡copy鍒癱:\workspace\My1stHibernate\lib\hibernate涓嬨?/p>
灝哻:\dev\<浣犵殑Hibernate鍖呮墍鍦ㄧ洰褰?gt;\lib\涓嬬殑鎵鏈夋枃浠跺悓鏍穋opy鍒癱:\workspace\My1stHibernate\lib\hibernate涓嬨?/p>
灝嗕綘鐨凧DBC Driver鏂囦歡(涓鑸槸涓涓猨ar鏂囦歡)copy鍒癱:\workspace\My1stHibernate\lib\db涓嬨?br>
浜屻佸垱寤烘暟鎹簱
1銆佺敤浣犳渶鍠滅埍鐨刣atabase杞歡錛屽垱寤轟竴涓猦ibernate_test鐨勬暟鎹簱銆?/p>
2銆佸湪姝ゆ暟鎹簱涓嬶紝鏂板緩涓涓猼able鍚嶄負CUSTOMER
CREATE TABLE CUSTOMER
(
CID INTEGER NOT NULL PRIMARY KEY,
USERNAME VARCHAR(12) NOT NULL,
PASSWORD VARCHAR(12)
);
涓夈佺紪鍐橨ava鏂囦歡錛圥OJO錛?/font>
public class Customer {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public String getPassword() {
return password;
}
public String getUsername() {
return username;
}
public void setId(int id) {
this.id = id;
}
public void setPassword(String password) {
this.password = password;
}
public void setUsername(String username) {
this.username = username;
}
}
灝嗘綾誨瓨涓篶:\workspace\My1stHibernate\src\Customer.java鏂囦歡銆?/p>
鍥涖佺紪鍐橳est綾?/font>
import net.sf.hibernate.*;
import net.sf.hibernate.cfg.*;
public class Test {
public static void main(String[] args) {
try {
SessionFactory sf =
new Configuration().configure().buildSessionFactory();
Session session = sf.openSession();
Transaction tx = session.beginTransaction();
for (int i = 0; i < 200; i++) {
Customer customer = new Customer();
customer.setUsername("customer" + i);
customer.setPassword("customer");
session.save(customer);
}
tx.commit();
session.close();
} catch (HibernateException e) {
e.printStackTrace();
}
}
}
灝嗘綾誨瓨涓篶:\workspace\My1stHibernate\src\Test.java鏂囦歡銆?br>
浜斻佸垱寤篐ibernate鏄犲皠鏂囦歡
鍥犱負榪欓噷鍙湁涓涓狢lass --- Customer 鍜屼竴涓猅able --- CUSTOMER錛屼綘鍙渶瑕佸緩绔嬩竴涓槧灝勬枃浠?-- Customer.hbm.xml錛屾潵瀵瑰簲Customer綾誨拰CUSTOMER琛ㄤ箣闂寸殑鍏崇郴銆?/p>
hibernate 2閽堝瀹炰綋瀵硅薄鍜岄泦鍚?br>hibernate 3鍚屾椂鎻愪緵浜嗗睘鎬х殑寤惰繜鍔犺澆鍔熻兘銆?br>鍏朵腑瀵歸泦鍚堢殑寤惰繜鍔犺澆鐗規ф剰涔夋渶涓洪噸澶с?/div>
瀹炰綋瀵硅薄鐨勫歡榪熷姞杞?
1.鍦╤ibernate閰嶇疆鏂囦歡涓殑class鎸囧畾
闆嗗悎綾誨瀷鐨勫歡榪熷姞杞斤細
鍦╯et涓寚瀹歭azy=true
榪欐牱鍙湁瀹為檯鍔犺澆涓庡璞＄浉鍏寵仈鐨勯泦鍚堝璞＄殑鏃跺欙紝鍐嶉氳繃session浠庢暟鎹簱涓姞杞藉疄闄呯殑鏁版嵁闆嗐?br>Hibernate.initialize鏂規硶鍙互寮哄埗Hibernate绔嬪嵆鍔犺澆鍏寵仈鐨勫璞￠泦錛屼緥濡傦細
Hibernate.initialize(user.getAddress());
闆嗗悎綾誨瀷鐨勭紦瀛橈細
濡傛灉涓烘煇涓泦鍚堢被璁懼畾浜嗙紦瀛橈紝濡?br><set
name="address"
table="t_address"
lazy="true"
......
>
<cache usage="read-only"/>
<key column="user_id" />
<one-to-many class="cn.blogjava.TAddress" />
</set>
Hibernate瀵歸泦鍚堢被鍨嬭繘琛岀紦瀛樼殑鏃跺欙紝鍒嗕袱閮ㄥ垎淇濆瓨銆傞鍏堟槸榪欎釜闆嗗悎涓墍鏈夊疄浣撶殑id鍒楄〃錛屽叾嬈℃墠鏄悇涓疄浣撳璞°?br>榪欓噷鍒跺畾浜哻ache usage="read-only"鍙細浣垮緱Hibernate瀵規暟鎹儲寮曡繘琛岀紦瀛樸備篃灝辨槸璇村彧緙撳瓨浜嗛泦鍚堜腑鐨勬暟鎹儲寮曪紝騫朵笉鍖呭惈闆嗗悎涓殑鍚勪釜瀹炰綋鍏冪礌銆?br>濡傛灉鎸囧畾cache usage="read-write"鎵嶄細瀵歸泦鍚堜腑鐨勫疄浣撹繘琛岀紦瀛樸?/p>
灞炴х殑寤惰繜鍔犺澆錛?br>鍦╬roperty鑺傜偣涓０鏄巐azy=true,鑰屼笖榪橀渶瑕佸熷姪Hibernate綾誨寮哄櫒瀵筆OJO綾葷殑浜岃繘鍒禖lass鏂囦歡榪涜寮哄寲澶勭悊銆?/p>
hibernate涓殑Collection
Hibernate瀵笿DK Collention鎺ュ彛鐨勭嫭绔嬪疄鐜幫細
鐢變簬浼犵粺鐨凧ava Set, Map, List瀹炵幇涓嶈兘婊¤凍瑕佹眰錛孒ibernate鏍規嵁榪欎簺鎺ュ彛鎻愪緵浜嗚嚜宸辯殑瀹炵幇銆?br>Hibernate鐨勫疄鐜幫細
鏃犲簭闆嗭細Set, Bag, Map
鏈夊簭闆嗭細List
Bag鐩稿綋浜庝竴涓厑璁擱噸澶嶅厓绱犲瓨鍦ㄧ殑Set銆?br>鍥犱負Hibernate鏄嚜宸辯殑Collection瀹炵幇錛屾墍浠ュ涓嬭鍙ヤ細鍑洪敊錛?br>Set hset = (HashSet)user.getAddresses();
浼氬湪榪愯鏈熸姤鍛婁竴涓猨ava.lang.ClassCastException,鍥犱負瀹為檯涓婅繑鍥炵殑鏄竴涓被鍨嬩負org.hibernate.collention.Set鐨勫璞°?br>鎵鏈夋垜浠湪鍐橮OJO鏃訛紝蹇呴』鐢↗DK Collection Interface(濡係et, Map)錛岃岄潪鐗瑰畾鐨凧DK Collection瀹炵幇綾?濡侶ashSet, HashMap)澹版槑Collection鍨嬪睘鎬х殑鍘熷洜銆備緥濡傦細
搴旇鏄痯rivate Set addresses;
鑰屼笉鏄痯rivate HashSet addresses;
collection綾誨瀷灞炴х殑淇濆瓨榪囩▼銆?br>渚嬪
public class TUser implements Serializable {
private Set addresses = new HashSet();
......
}
鐒跺悗鍒涘緩涓涓猅User瀹炰緥鍚庯紝灝卞彲浠ヤ負鍏舵坊鍔犲叧鑱旂殑address瀵硅薄錛?br>TUser user = new TUser();
TAddress addr = new TAddress();
addr.setAddress("HongKong");
user.getAddress().add(addr);
session.save(user);
user瀵硅薄鍦ㄧ粡榪嘓ibernate澶勭悊鍚庡彂鐢熶簡鍙樺寲錛岄鍏堬紝鐢變簬insert鎿嶄綔錛屼駭鐢熶簡id鍊鹼紝騫跺～鍏呭埌user瀵硅薄鐨刬d灞炴э紝鍙︿竴鏂歸潰Hibernate浣跨敤浜嗚嚜宸辯殑collection瀹炵幇瀵箄ser涓殑HashSet鍨媋ddresses灞炴ц繘琛屼簡鏇挎崲錛屽茍鐢ㄦ暟鎹鍏惰繘琛屼簡濉厖銆?/p>
鍧囧彲浠ユ牴鎹寚瀹氱殑瀹炰綋綾誨拰id浠庢暟鎹簱涓鍙栬褰曪紝騫惰繑鍥炰笌涔嬪搴旂殑瀹炰綋瀵硅薄銆?br>鍖哄埆錛?br>1.濡傛灉鏈兘鍙戠幇絎﹀悎鏉′歡鐨勮褰曪紝get鏂規硶榪斿洖null,鑰宭oad鏂規硶浼氭姏鍑轟竴涓狾bjectNotFoundException銆?br>2.Load鏂規硶鍙繑鍥炲疄浣撶殑浠ｇ悊綾誨疄渚嬶紝鑰実et鏂規硶姘歌繙鐩存帴榪斿洖瀹炰綋綾匯?br>3.load鏂規硶鍙互鍏呭垎鍒╃敤鍐呴儴緙撳瓨鍜屼簩綰х紦瀛樹腑鐨勭幇鏈夋暟鎹紝鑰実et鏂規硶浠呭湪鍐呴儴緙撳瓨涓煡鎵撅紝濡傛灉娌℃湁鍙戠幇瀵瑰簲鐨勬暟鎹紝灝嗚秺榪囦簩綰х紦瀛橈紝鐩存帴璋冪敤SQL瀹屾垚鏁版嵁璇誨彇銆?br>鏁版嵁鍔犺澆鐨勮繃紼嬶細
1.鍦ㄤ竴綰х紦瀛樹腑錛屾牴鎹疄浣撶被鍨嬪拰id榪涜鏌ユ壘錛屽鏋滃湪絎竴綰х紦瀛樹腑鍛戒腑錛屼笖鏁版嵁鐘舵佸悎娉曪紝鍒欑洿鎺ヨ繑鍥炪?br>2.Session浼氬湪褰撳墠"NonExists"璁板綍涓繘琛屾煡鎵撅紝濡傛灉鍦?NonExists"璁板綍涓瓨鍦ㄥ悓鏍風殑鏉′歡錛岃繑鍥瀗ull銆?br>3.瀵筶oad鏂規硶鑰岃█錛屽鏋滃唴閮ㄧ紦瀛樹腑娌℃硶鐜版湁鏁堟暟鎹紝鏌ヨ浜岀駭緙撳瓨錛屽懡涓垯榪斿洖銆?br>4.濡傛灉緙撳瓨涓棤鏈夋晥鏁版嵁錛屽彂璧鋒暟鎹簱鏌ヨ鎿嶄綔(Select SQL)錛屽鏋滅粡榪囨煡璇㈡湭鍙戠幇瀵瑰簲璁板綍錛屽皢姝ゆ鏌ヨ鐨勪俊鎭湪"NonExists"涓姞浠ヨ褰曪紝榪斿洖null.
5.鏍規嵁鏄犲皠閰嶇疆鍜孲elect SQL鏌ヨ寰楀埌鐨凴esultSet錛屽垱寤哄搴旂殑鏁版嵁瀵硅薄銆?br>6.灝嗗璞＄撼鍏ヤ竴綰х紦瀛樸?br>7.鎵цInterceptor.onLoad鏂規硶(濡傛灉鏈夊搴旂殑Interceptor)
8.灝嗘暟鎹撼鍏ヤ簩綰х紦瀛?br>9.濡傛灉鏁版嵁瀵硅薄瀹炵幇浜哃ifeCycle鎺ュ彛錛屽垯璋冪敤鏁版嵁瀵硅薄鐨刼nLoad鏂規硶銆?br>10.榪斿洖鏁版嵁瀵硅薄銆?/div>
鎵歸噺鏌ヨ錛歋ession.find/iterate
鏌ヨ鎬ц兘寰寰鏄郴緇熸ц兘琛ㄧ幇鐨勪竴涓噸瑕佹柟闈紝鏌ヨ鏈哄埗鐨勪紭鍔ｅ緢澶х▼搴︿笂鍐沖畾浜嗙郴緇熺殑鏁翠綋鎬ц兘銆傝繖涓鍩熷線寰涔熷瓨鍦ㄦ渶澶х殑鎬ц兘璋冩暣絀洪棿銆?/p>
hibernate2涓璖ession.find()瀵瑰簲浜?涓殑session.createQuery().list();
hibernate2涓璖ession.iterate()瀵瑰簲浜?涓殑session.createQuery().iterate();
find鍜宨terate鍖哄埆錛?br>find鏂規硶閫氳繃涓鏉elect SQL瀹炵幇浜嗘煡璇㈡搷浣滐紝鑰宨terate鏂規硶瑕佹墽琛屽鏉elect SQL.
iterate絎竴嬈℃煡璇㈣幏鍙栨墍鏈夌鍚堟潯浠剁殑璁板綍鐨刬d錛岀劧鍚庡啀鏍規嵁鍚勪釜id浠庡簱琛ㄤ腑璇誨彇瀵瑰簲鐨勮褰曪紝榪欐槸涓涓吀鍨嬬殑N+1嬈＄殑鏌ヨ闂錛屽鏋滅鍚堟潯浠惰褰曟湁10000鏉★紝灝遍渶瑕佹墽琛?0001鏉elect SQL錛屽彲鎯蟲ц兘浼氬浣曠殑宸?/p>
閭ｄ負浠涔堣鎻愪緵iterator鏂規硶錛岃屼笉鍙槸鎻愪緵楂樻晥鐜囩殑find鏂規硶錛?/p>
鍘熷洜1.涓巋ibernate緙撳瓨鏈哄埗瀵嗗垏鐩稿叧
find鏂規硶瀹為檯涓婃槸鏃犳硶鍒╃敤緙撳瓨鐨勶紝瀹冨緙撳瓨鍙啓涓嶈銆?br>find鏂規硶鍙墽琛屼竴嬈QL鏌ヨ錛屽畠鏃犳硶鍒ゆ柇緙撳瓨涓粈涔堟牱鐨勬暟鎹槸絎﹀悎鏉′歡鐨勶紝涔熸棤娉曚繚璇佹煡璇㈢粨鏋滅殑瀹屾暣鎬с傝宨terate鏂規硶錛屼細棣栧厛鏌ヨ鎵鏈夌鍚堟潯浠惰褰曠殑id錛岀劧鍚庢牴鎹甶d鍘葷紦瀛樹腑鎵撅紝濡傛灉緙撳瓨涓湁璇d錛屽氨榪斿洖錛屾病鏈夊彲浠ユ牴鎹甶d鍐嶅幓鏁版嵁搴撴煡璇€?br>String hql = "from TUser where age > ?";
List userList = session.find(hql, new Integer(18), Hibernate.INTEGER);
Iterator it = session.iterate(hql, new Integer(18), Hibernate.INTEGER);
欏哄簭鎵ц錛宨terate鏂規硶鍙細鎵ц涓嬈QL鏌ヨ錛屽氨鏄煡鎵緄d錛岀劧鍚庢牴鎹甶d灝卞彲浠ヤ粠緙撳瓨涓幏寰楁暟鎹?/p>
String hql = "from TUser where age > ?";
List userList = session.find(hql, new Integer(18), Hibernate.INTEGER);
userList = session.find(hql, new Integer(18), Hibernate.INTEGER);
緙撳瓨鏄笉璧蜂綔鐢ㄧ殑銆?br>濡傛灉鐩爣鏁版嵁璇誨彇鐩稿杈冧負棰戠箒錛岄氳繃iterate榪欑鏈哄埗錛屼細鍑忓皯鎬ц兘鎹熻椼?/p>
鍘熷洜2.鍐呭瓨浣跨敤涓婄殑鑰冭檻
find鏂規硶灝嗕竴嬈¤幏寰楃殑鎵鏈夎褰曞茍灝嗗叾璇誨叆鍐呭瓨銆傚鏋滄暟鎹噺澶ぇ錛屽彲鑳戒細瑙﹀彂OutOfMemoryError錛屼粠鑰屽鑷寸郴緇熷紓甯搞傝В鍐蟲柟妗堜箣涓灝辨槸緇撳悎iterate鏂規硶鍜宔vict鏂規硶閫愭潯瀵硅褰曡繘琛屽鐞嗭紝灝嗗唴瀛樻秷鍖栦繚鎸佸湪涓涓彲浠ユ帴鍙楃殑鑼冨洿涔嬪唴銆傚錛?br>String hql = "from TUser where age > ?";
Iterator it = session.iterate(hql, new Integer(18), Hibernate.INTEGER);
while(it.hasNext()) {
TUser user = (TUser)it.next();
//灝嗗璞′粠涓綰х紦瀛樹腑鍒犻櫎
session.evict(user);
//浜岀駭緙撳瓨鍙互璁懼畾鏈澶х紦瀛橀噺,杈懼埌鍚庤嚜鍔ㄥ杈冭佹暟鎹繘琛屽簾闄?浣嗕篃鍙互閫氳繃緙?br> //鐮佺Щ闄?榪欐牱鏈夊姪浜庝繚鎸佹暟鎹湁鏁堟с?br> sessionFactory.evict(TUser.class, user.getID());
}
鎵歸噺鏁版嵁澶勭悊鐨勭紦瀛樺悓姝ラ棶棰?br>1.hibernate 2:
session.delete("from TUser");
浼氬厛鏌ヨ鍑篿d錛岀劧鍚庨愪釜id鎵ц delete from T_User where id = ?;
榪欐牱閫犳垚鏁堢巼浣庝笅銆?br>涓轟粈涔堜笉鐩存帴閲囩敤涓鏉elete SQL錛熸槸鍥犱負ORM瑕佽嚜鍔ㄧ淮鎸佸叾鍐呴儴鐘舵佸睘鎬э紝蹇呴』鐭ラ亾鐢ㄦ埛浣滀簡浠涔堟搷浣溿傚繀欏誨厛浠庢暟鎹簱涓幏寰楀緟鍒犻櫎瀵硅薄錛岀劧鍚庢牴鎹繖浜涘璞″鍐呴儴緙撳瓨鍜屼簩綰х紦瀛樼殑鏁版嵁榪涜鏁寸悊錛屼互淇濇寔鍐呭瓨鐘舵佷笌鏁版嵁搴撶殑涓鑷存с?br>鍗曟墽琛屼竴鏉″垹闄よ鍙ワ紝鍒犻櫎浜嗕粈涔堟暟鎹紝鍙湁鏁版嵁搴撶煡閬擄紝ORM鏃犳硶寰楃煡銆備笅嬈＄敤鎴蜂粠緙撳瓨涓鍑虹殑鏁版嵁錛屽緢鍙兘灝辨槸琚垹闄ょ殑鏁版嵁錛屼粠鑰屽鑷撮昏緫閿欒銆傚綋鐒訛紝濡傛灉ORM鍙互鏍規嵁DELETE SQL瀵圭紦瀛樹腑鏁版嵁榪涜澶勭悊錛屽皢緙撳瓨涓鍚堟潯浠剁殑瀵硅薄搴熼櫎錛岀劧鍚庡啀鎵цDELETE SQL
錛屼絾鏄繖鏍峰鑷寸紦瀛樼殑綆＄悊澶嶆潅鎬уぇ澶у鍔?瀹為檯鐩稿綋浜庡疄鐜頒簡涓涓敮鎸丼QL鐨勫唴瀛樻暟鎹簱)錛岃繖瀵逛簬杞婚噺綰х殑ORM瀹炵幇鑰岃█澶嫑鍒諱簡銆?br>2.hibernate 3
鎬ц兘鎻愰珮銆?br>浣嗘棤娉曡В鍐崇紦瀛樺悓姝ヤ笂鐨勯棶棰橈紝鏃犳硶淇濊瘉緙撳瓨鏁版嵁鐨勪竴鑷存湁鏁堟с?br>Tuser user = (TUser)session.load(TUser.class, new Integer(1));
//閫氳繃Bulk delete/update 鍒犻櫎id=1鐨勭敤鎴瘋褰?br>Transaction tx = session.beginTransaction();
String hql = "delete TUser where id=1";
Query query = session.createQuery(hql);
query.executeUpdate();
tx.commit();
//鍐嶆灝濊瘯鍔犺澆
user = (TUser)session.load(TUser.class, new Integer(1));
鍙互鐪嬪埌絎簩嬈″姞杞芥槸鎴愬姛鐨勩?/p>
鍩轟簬JDBC鐨勪簨鍔★細
鏃犵枒鏄渶綆鍗曠殑瀹炵幇鏂瑰紡錛?br>session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
tx.commit();
鍩轟簬JTA鐨勪簨鍔＄鐞嗭細
hibernate榛樿閲囩敤JDBC Transacion銆傚彲浠ラ氳繃閰嶇疆鏂囦歡鎸囧畾閲囩敤JTA浣滀負浜嬪姟綆＄悊瀹炵幇銆?br><hibernate-configuration>
<session-factory>
......
<property name="hibernate.transaction.factory_class">
org.hibernate.transaction.JTATransactionFactory
</property>
</session-factory>
</hibernate-configuration>
閿?locking)
鏀寔涓ょ閿侊細鎮茶閿佸拰涔愯閿?/p>
鎮茶閿?Pessimistic locking)錛?br>鏁版嵁搴撶殑瀹炵幇
select * from account where name='yyy' for update
閫氳繃for update瀛愬彞錛岃繖鏉¤鍙ラ攣瀹氭墍鏈夌鍚堟潯浠剁殑璁板綍錛屽湪鏈浜嬪姟鎻愪氦涔嬪墠錛屽鐣屾棤娉曚慨鏀硅繖浜涜褰曘?/p>
hibernate鐨勫疄鐜幫紝涔熸槸鍩轟簬鏁版嵁搴撶殑閿佹満鍒跺疄鐜幫細
鍔犻攣涓鑸氳繃浠ヤ笅鏂規硶瀹炵幇錛?br>Criteria.setLockMode
Query.setLockMode
Session.lock
hibernate鐨勫姞閿佹ā寮忥細
LockMode.NONE:鏃犻攣鏈哄埗
LockMode.WRITE:hibernate鍦↖nsert鍜寀pdate鏃訛紝浼氳嚜鍔ㄨ幏鍙?br>LockMode.READ:hibernate鍦ㄨ鍙栬褰曠殑鏃跺欙紝浼氳嚜鍔ㄨ幏鍙?br>浠ヤ笂3縐嶏紝鐢県ibernate鍐呴儴浣跨敤銆?/p>
LockMode.UPGRADE:鍒╃敤鏁版嵁搴撶殑for update瀛愬彞鍔犻攣
LockMode.UPGRADE_NOWAIT錛歰racle鐗瑰畾瀹炵幇錛屽埄鐢╫racle鐨刦or update nowait瀛愬彞瀹炵幇鍔犻攣銆?/p>
涔愯閿?Optimistic locking)錛?br>hibernate鍦ㄥ叾鏁版嵁璁塊棶寮曟搸涓唴緗簡涔愯閿佸疄鐜般傚彲浠ラ氳繃class鎻忚堪絎︾殑optimistic-lock灞炴х粨鍚坴ersion鎻忚堪絎︽寚瀹氥?/p>
<hibernate-mapping>
<class
name="org.hibernate.sample.TUser"
table="t_user"
dynamic-update="true"
dynamic-insert="true"
optimistic-lock="version"
>
<id>......
</id>
<version
column="version"
name="version"
type="java.lang.Integer"
/>
</class>
</hibernate-mapping>
娉ㄦ剰,version鑺傜偣瑕佸湪ID鑺傜偣涔嬪悗銆?br>榪欓噷錛屽０鏄庝簡涓涓獀ersion灞炴э紝鐢ㄤ簬瀛樻斁鐢ㄦ埛鐨勭増鏈俊鎭紝淇濆瓨鍦═_User琛ㄧ殑version瀛楁涓?/p>
鍦℉ibernate涓紝緙撳瓨灝嗗湪浠ヤ笅鎯呭喌涓彂鎸ヤ綔鐢細
1.閫氳繃id[涓婚敭]鍔犺澆鏁版嵁鐨勬椂鍊?br>2.寤惰繜鍔犺澆
涓綰х紦瀛橈細
鍙堢О鍐呴儴緙撳瓨錛屼繚瀛樹簡涓庡綋鍓峴ession鐩稿叧鑱旂殑鏁版嵁瀵硅薄錛屼即闅廠ession瀹炰緥鐨勫垱寤鴻屽垱寤猴紝娑堜骸鑰屾秷浜°傚洜姝ゅ張縐版緙撳瓨涓篠ession level cache銆?/p>
涓綰х紦瀛樻甯告儏鍐典笅鍙圚ibernate鑷姩緇存姢錛屽鏋滈渶瑕佹墜鍔ㄥ共棰勶紝鍙互閫氳繃浠ヤ笅鏂規硶瀹屾垚銆?br>1.Session.evict
灝嗘煇涓壒瀹氬璞′粠鍐呴儴緙撳瓨涓竻闄ゃ?br>2.Sessin.clear
娓呯┖鍐呴儴緙撳瓨
浜岀駭緙撳瓨錛?br>鍙堢О涓篠essionFactory Level Cache.
瀵逛粈涔堟牱鐨勬暟鎹嬌鐢ㄤ簩綰х紦瀛橈紵
瀵規墍鏈夋暟鎹兘榪涜緙撳瓨鏄渶綆鍗曠殑鍔炴硶錛屼篃鏄渶甯哥敤鐨勫姙娉曘?br>浣嗘槸鏌愪簺鎯呭喌涓嬶紝鍙嶈屼細褰卞搷鎬ц兘錛屾瘮濡傜數璇濊垂鏌ヨ緋葷粺錛屽鏋滃疄琛岀紦瀛橈紝鍐呭瓨浼氳鍑犱箮涓嶅彲鑳藉啀琚噸鐢ㄧ殑鏁版嵁鍏呮枼錛屽鑷存ц兘涓嬮檷銆?br>濡傛灉鏁版嵁婊¤凍浠ヤ笅鏉′歡錛屽彲浠ュ皢鍏剁撼鍏ョ紦瀛樼鐞嗭細
1.鏁版嵁涓嶄細琚涓夋柟搴旂敤淇敼銆?br>2.data size鍦ㄥ彲浠ユ帴鍙楃殑鑼冨洿涔嬪唴
3.鏁版嵁鏇存柊棰戠巼杈冧綆
4.鍚屼竴鏁版嵁鍙兘浼氳緋葷粺棰戠箒寮曠敤
5.闈炲叧閿暟鎹?br>Hibernate鏈韓騫舵病鎻愪緵浜岀駭緙撳瓨鐨勪駭鍝佸寲瀹炵幇(鍙彁渚涗簡涓涓熀浜嶩ashTable鐨勭畝鍗曠紦瀛樹互渚涜皟璇?錛屽彲浠ヤ嬌鐢ㄧ涓夋柟緙撳瓨鏉ュ疄鐜般?br>榛樿閲囩敤EHCache浣滀負浜岀駭緙撳瓨瀹炵幇銆?br>EHCache org.ehcache.hibernate.Provider
]]>
渚嬪錛屼竴涓敤鎴鋒湁涓や釜閮ㄥ垎緇勬垚錛屽鍚嶅拰鑱旂郴鏂瑰紡銆傚鍚嶅拰鑱旂郴鏂瑰紡閮藉彲浠ヤ綔涓虹敤鎴風殑緇勬垚閮ㄥ垎銆?br>
1.琛ㄧ粨鏋勫涓?br>
DROP TABLE t_user;
CREATE TABLE t_user (
id INT NOT NULL AUTO_INCREMENT
, age INT
, firstname VARCHAR(50)
, lastname VARCHAR(50)
, address VARCHAR(200)
, zipcode VARCHAR(10)
, tel VARCHAR(20)
, PRIMARY KEY (id)
);
2.閰嶇疆鏂囦歡
TUser.hbm.xml
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<!--
Auto-generated mapping file from
the hibernate.org cfg2hbm engine
-->
<class name="cn.blogjava.component.TUser" table="t_user" catalog="sample">
<id name="id" type="integer">
<column name="id" />
<generator class="native" />
</id>
<property name="age" type="integer">
<column name="age" />
</property>
<component name="name" class="cn.blogjava.component.Name">
<property name="firstname" type="string">
<column name="firstname" length="50" />
</property>
<property name="lastname" type="string">
<column name="lastname" length="50" />
</property>
</component>
<component name="contact" class="cn.blogjava.component.Contact">
<property name="address" type="string">
<column name="address" length="200" />
</property>
<property name="zipcodes" type="string">
<column name="zipcode" length="10" />
</property>
<property name="tel" type="string">
<column name="tel" length="20" />
</property>
</component>
</class>
</hibernate-mapping>
3.POJO綾?br>Contact.java
import java.io.Serializable;
public class Contact implements Serializable {
private String address;
private String zipcodes;
private String tel;
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getTel() {
return tel;
}
public void setTel(String tel) {
this.tel = tel;
}
public String getZipcodes() {
return zipcodes;
}
public void setZipcodes(String zipcodes) {
this.zipcodes = zipcodes;
}
}
Name.java
import java.io.Serializable;
public class Name implements Serializable {
private String firstname;
private String lastname;
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
}
TUser.java
public class TUser implements java.io.Serializable {
private Integer id;
private Integer age;
private Name name;
private Contact contact;
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Contact getContact() {
return contact;
}
public void setContact(Contact contact) {
this.contact = contact;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Name getName() {
return name;
}
public void setName(Name name) {
this.name = name;
}
}
4.嫻嬭瘯綾?br>
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import junit.framework.TestCase;
import junit.framework.Assert;
public class HibernateTest extends TestCase {
Session session = null;
protected void setUp(){
try {
Configuration config = new Configuration().configure();
SessionFactory sessionFactory = config.buildSessionFactory();
session = sessionFactory.openSession();
// delete();
} catch (HibernateException e) {
// TODO: handle exception
e.printStackTrace();
}
}
protected void tearDown() {
try {
session.close();
} catch (HibernateException e) {
// TODO: handle exception
e.printStackTrace();
}
}
public void delete(){
Transaction tran = null;
String hql = " delete TUser";
try {
tran = session.beginTransaction();
Query query = session.createQuery(hql);
int ret = query.executeUpdate();
System.out.println("Delete records => " + ret);
tran.commit();
} catch (HibernateException e) {
// TODO: handle exception
e.printStackTrace();
Assert.fail(e.getMessage());
if(tran != null) {
try {
tran.rollback();
} catch(HibernateException e2) {
e2.printStackTrace();
}
}
}
}
public void testInsert(){
Transaction tran = null;
try {
System.out.println("session is " + session);
tran = session.beginTransaction();
//user1
TUser user = new TUser();
user.setAge(25);
Name name = new Name();
name.setFirstname("yu");
name.setLastname("yy");
user.setName(name);
Contact contact = new Contact();
contact.setAddress("dalian");
contact.setTel("42689334");
contact.setZipcodes("116023");
user.setContact(contact);
session.save(user);
//user2
TUser user2 = new TUser();
user2.setAge(26);
Name name2 = new Name();
name2.setFirstname("bai");
name2.setLastname("yf");
user2.setName(name2);
Contact contact2 = new Contact();
contact2.setAddress("beijing");
contact2.setTel("12345678");
contact2.setZipcodes("100010");
user2.setContact(contact2);
session.save(user2);
session.flush();
tran.commit();
Assert.assertEquals(user.getId().intValue() > 0, true);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
Assert.fail(e.getMessage());
if(tran != null) {
try {
tran.rollback();
} catch(HibernateException e2) {
e2.printStackTrace();
}
}
}
}
public void testSelect(){
String hql = " from TUser where age=25 ";
try {
List userList = session.createQuery(hql).list();
TUser user = (TUser)userList.get(0);
Contact contact = user.getContact();
Assert.assertEquals(contact.getAddress(), "dalian");
Assert.assertEquals(user.getName().getFirstname(), "yu");
} catch (HibernateException e) {
// TODO: handle exception
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
}
]]>
2.鍦ㄨ鍥句腑鐨勯厤緗笂錛岀偣鍑誨彸閿紝緙栬緫閰嶇疆錛岄厤緗涓?br>
3.鍦ㄩ厤緗笂錛岀偣鍑誨彸閿紝閫夋嫨HQL Scratchpad錛屾墦寮HQL璇彞緙栬緫紿楀彛
4.鍙互閫氳繃Hibernate Dynamic Query Translator錛屾煡鐪嬫渶緇堟墽琛岀殑SQL璇彞銆?br>
5.鍙互閫氳繃Query Parameters鏉ヨ緗煡璇㈠弬鏁?br>
6.鍙互閫氳繃Hibernate Query Result鏉ユ煡鐪嬫煡璇㈢粨鏋?br>
7.緇撳悎property瑙嗗浘錛岀湅寰楁洿娓呮
]]>
]]>
]]>
涓瀵逛竴鍏寵仈鏈変袱縐嶇被鍨嬶細涓婚敭鍏寵仈鍜屽敮涓澶栭敭鍏寵仈
涓.涓婚敭鍏寵仈錛?br>涓瀵逛竴涓婚敭鍏寵仈褰㈠紡錛屽嵆涓ゅ紶鍏寵仈琛ㄩ氳繃涓婚敭褰㈡垚涓瀵逛竴鏄犲皠鍏崇郴銆?br>渚嬪錛屼竴涓腑鍥藉叕姘戝彧鑳芥湁涓浠芥姢鐓с?br>
1.鏁版嵁妯″瀷濡備笅
2.琛ㄥ畾涔塻ql
DROP TABLE T_Passport;
CREATE TABLE T_Passport (
id INT NOT NULL
, serial VARCHAR ( 30 )
, expiry INT
, PRIMARY KEY (id)
);
CREATE TABLE T_User (
id INT NOT NULL AUTO_INCREMENT
, name VARCHAR ( 50 )
, age INT
, PRIMARY KEY (id)
, INDEX (id)
, CONSTRAINT FK_T_User_1 FOREIGN KEY (id)
REFERENCES T_Passport (id)
);
3.POJO綾?br>TUser.java
public class TUser implements java.io.Serializable {
// Fields
private Integer id;
private Integer age;
private String name;
private TPassport passport;
// Constructors
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this .age = age;
}
public TPassport getPassport() {
return passport;
}
public void setPassport(TPassport passport) {
this .passport = passport;
}
/** default constructor */
public TUser() {
}
/** constructor with id */
public TUser(Integer id) {
this .id = id;
}
// Property accessors
public Integer getId() {
return this .id;
}
public void setId(Integer id) {
this .id = id;
}
public String getName() {
return this .name;
}
public void setName(String name) {
this .name = name;
}
}
TPassport.java
import java.io.Serializable;
public class TPassport implements Serializable {
private Integer id;
private String serial;
private Integer expiry;
private TUser user;
public Integer getExpiry() {
return expiry;
}
public void setExpiry(Integer expiry) {
this .expiry = expiry;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this .id = id;
}
public String getSerial() {
return serial;
}
public void setSerial(String serial) {
this .serial = serial;
}
public TUser getUser() {
return user;
}
public void setUser(TUser user) {
this .user = user;
}
}
3.閰嶇疆鏂囦歡
TUser.hbm.xml
<! DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
< hibernate-mapping >
< class name ="cn.blogjava.start.TUser" table ="T_User" catalog ="sample" >
< id name ="id" type ="integer" >
< column name ="id" />
< generator class ="native" />
</ id >
< property name ="name" type ="string" >
< column name ="name" length ="100" not-null ="true" />
</ property >
< property name ="age" type ="java.lang.Integer" column ="age" />
< one-to-one name ="passport"
class ="cn.blogjava.start.TPassport"
cascade ="all"
outer-join ="true"
/>
</ class >
</ hibernate-mapping >
TPassport.hbm.xml
<! DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
< hibernate-mapping >
< class name ="cn.blogjava.start.TPassport" table ="T_Passport" catalog ="sample" >
< id name ="id" type ="integer" column ="id" >
< generator class ="foreign" >
< param name ="property" > user </ param >
</ generator >
</ id >
< property name ="serial" type ="string" column ="serial" />
< property name ="expiry" type ="java.lang.Integer" column ="expiry" />
< one-to-one name ="user"
class ="cn.blogjava.start.TUser"
constrained ="true"
/>
</ class >
</ hibernate-mapping >
4.嫻嬭瘯浠ｇ爜
import java.util.List;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
public class HibernateTest extends TestCase {
Session session = null ;
protected void setUp() {
try {
Configuration config = new Configuration().configure();
SessionFactory sessionFactory = config.buildSessionFactory();
session = sessionFactory.openSession();
} catch (HibernateException e) {
e.printStackTrace();
}
}
protected void tearDown() {
try {
session.close();
} catch (HibernateException e) {
e.printStackTrace();
}
}
public void testInsert() {
Transaction tran = null ;
try {
TUser user = new TUser();
user.setName( " byf " );
user.setAge( new Integer( 26 ));
TPassport passport = new TPassport();
passport.setSerial( " PCN123456 " );
passport.setExpiry( new Integer( 20081010 ));
// 璁劇疆鐩鎬簰鍏寵仈
user.setPassport(passport);
passport.setUser(user);
tran = session.beginTransaction();
session.save(user);
session.flush();
tran.commit();
Assert.assertEquals(user.getId().intValue() > 0 , true );
} catch (HibernateException e) {
e.printStackTrace();
Assert.fail(e.getMessage());
if (tran != null ) {
try {
tran.rollback();
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
}
/**
* 瀵硅薄璇誨彇嫻嬭瘯(Select鏂規硶)
*/
public void testSelect(){
String hql = " from TUser where name='byf' " ;
try {
List userList = session.createQuery(hql).list();
TUser user = (TUser)userList.get( 0 );
System.out.println( " user name is " + user.getName());
System.out.println( " passport serial NO. is " + user.getPassport().getSerial());
Assert.assertEquals(user.getName(), " byf " );
} catch (Exception e) {
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
}
]]>
1.瀹炰綋鏌ヨ
String hql = " from TUser";
鎵ц榪欐潯璇彞浼氳繑鍥濼User浠ュ強TUser瀛愮被鐨勭邯褰曘?br>
hql = "from java.lang.Object"
浼氳繑鍥炴暟鎹簱涓墍鏈夊簱琛ㄧ殑綰綍銆?br>
where 璇彞
hql = "from TUser as user where user.name='yyy'";
鍏朵腑錛宎s鍙互鐪佺暐涔熶竴鏍?br>hql = "from TUser user where user.name='yyy'";
where瀛愬彞涓紝鎴戜滑鍙互閫氳繃姣旇緝榪愮畻絎﹁瀹氭潯浠訛紝濡傦細
=, <>, >, <, >=, <=, between, not between, in, not in, is, like絳夈?br>
2.灞炴ф煡璇?br>List list = session.createQuery("select user.name, user.age from TUser as user").list();
榪樺彲浠ュ湪HQL涓姩鎬佹瀯閫犲璞″疄渚嬬殑鏂規硶錛屽皢鏁版嵁灝佽銆?br>List list = session.createQuery("select new TUser(user.name, user.age) from TUser as user").list();
Iterator it = list.iterator();
while(it.hasNext() ) {
TUser user = (TUser)it.next();
System.out.println(user.getName());
}
浣嗘槸瑕佹敞鎰忚繖閲岀殑TUser瀵硅薄鍙槸瀵筺ame鍜宎ge灞炴х殑灝佽錛屽叾浠栫姸鎬佸潎鏈祴鍊鹼紝鎵浠ヤ笉鑳界敤瀹冩潵榪涜鏇存柊鎿嶄綔銆?br>
涔熷彲浠ュ湪HQL鐨凷elect瀛愬彞涓嬌鐢ㄧ粺璁″嚱鏁?br>"select count(*) ,min(user.age) from TUser as user"
涔熷彲浠ヤ嬌鐢╠istinct鍏抽敭瀛楁潵鍒犻櫎閲嶅綰綍銆?br>select distinct user.name from TUser as user;
3.瀹炰綋鐨勬洿鏂頒笌鍒犻櫎
hibernate 2涓渶瑕佸厛鏌ヨ鍑哄疄浣擄紝璁劇疆灞炴у悗鍐嶄繚瀛樸?br>
hibernate 3涓紝鎻愪緵浜嗘洿鐏墊椿鐨勬柟寮?bulk delete/update)
鏇存柊錛?br> Query query = session.createQuery("update TUser set age=18 where id=1");
query.executeUpdate();
鍒犻櫎錛?br> session.createQuery("delete TUser where age>=18");
query.executeUpdate();
4.鍒嗙粍涓庢帓搴?br>Order by瀛愬彞錛?br> from TUser user order by user.name, user.age desc
Group by瀛愬彞鍜孒aving瀛愬彞
"select count(user), user.age from TUser user group by user.age having count(user)>10"
5.鍙傛暟閭﹀畾
閫氳繃欏哄簭鍗犱綅絎?鏉ュ～鍏呭弬鏁幫細
1)hibernate 2 涓氳繃session.find鏂規硶鏉ュ～鍏?br> session.find("from TUser user where user.name=?", "Erica", Hibernate.STRING);
澶氫釜鍙傛暟鐨勬儏鍐碉細
Object[] args = new Object[] {"Erica", new Integer(20)};
Type[] types = new Type{Hibernate.STRING, Hibernate.INTEGER};
session.find("from TUser user where user.name=? and user.age=?", args, types);
2)閫氳繃Query鎺ュ彛榪涜鍙傛暟濉厖錛?br> Query query = session.createQuery("from TUser user where user.name=? and user.age>?");
query.setString(0,"Erica");
query.setInteger(1, 20);
閫氳繃寮曠敤鍗犱綅絎︽潵濉厖鍙傛暟錛?br> String hql = "from TUser where name=:name";
Query query = session.createQuery(hql);
query.setParameter("name","Erica");
鐢氳嚦鍙互灝嗘煡璇㈡潯浠跺皝瑁呬負涓涓狫avaBean
class UserQuery {
private String name;
private Integer age;
//getter and setter
}
String hql = "from TUser where name=:name and age=:age";
Query query = session.createQuery(hql);
UserQuery uq = new UserQuery();
uq.setName("Erica");
uq.setAge(new Integer(20));
query.setProperties(uq); //浼氳皟鐢ㄩ噷闈㈢殑getter?
query.iterate();
6.鑱斿悎鏌ヨ
涔熷彲浠ヤ嬌鐢?inner join,left outer join, right out join, full join
鎺掑垪緇勫悎錛歠orm TUser, TAddress
]]>
]]>