Criteria Query
鍙互鐪嬩綔浼犵粺sql鐨勫璞″寲琛ㄧず
Criteria 鍙互鐢眘ession鍒涘緩
Criteria ct= session.createCriteria(TUser.class);
Criteria涓彲浠ュ鍔犳煡璇㈡潯浠?br />
ct.add(Expression.eq("name","Erica"));
ct.add(Expression.eq("sex",new Integer(1)));
Criteria涓鍔犵殑鏌ヨ鏉′歡鍙互鐢辮〃杈懼紡瀵硅薄鍒涘緩
Expression.eq(瀵硅薄灞炴у悕錛屽璞″睘鎬у?;
鏌ヨ鏉′歡閫氳繃Criteria鐨刟dd鏂規硶鍔犲叆銆?/p>
琛ㄨ揪寮忓璞＄殑鏂規硶鏈夛細
eq 絳変簬錛岀涓涓弬鏁版槸瀵硅薄灞炴э紝絎簩涓弬鏁版槸鍊?br />
allEq 鍙傛暟涓轟竴涓狹ap瀵硅薄錛岀浉褰撲簬澶氫釜eq鐨勫彔鍔?br />
gt 澶т簬
ge 澶т簬絳変簬
lt <
le <=
between 鍦ㄤ袱涓間箣闂碋xpression.between("age",new Integer(10),new Integer(20));
like like鏌ヨ
in in鏌ヨ
eqProperty 鐢ㄤ簬姣旇緝涓や釜瀵硅薄鐨勫睘鎬х殑鍊兼槸鍚︾浉絳?br />
gtProperty
geProperty
ltProperty
leProperty
and and鏂規硶鍙互宓屽Expression瀵硅薄錛岀敤浜巃nd鍏崇郴
or 鍚屼笂
濡傦細Expression.or(
Expression.eq("name","hulei"),
Expression.eq("name","jane")
);
sql 浣滀負Expression瀵硅薄鐨勮ˉ鍏咃紝鏈柟娉曟彁渚涘鍘熺敓sql鐨勬敮鎸?/p>
***娉ㄦ剰錛屽湪Hibernate3涓紝寮曞叆浜哛estrictions綾諱綔涓篍xpression鐨勬浛浠ｏ紝浠ュ悗鐨勭増鏈紝涓嶅啀鎺ㄨ崘浣跨敤Expression銆?br /> ***浣嗘槸錛孯estrictions綾葷殑浣跨敤鏂規硶鍜孍xpression鐨勬柟娉曚竴鑷淬?/p>
娉ㄦ剰錛屽湪鏌ヨ鏉′歡涓紝Hibernate鎻愪緵浜嗕竴涓狤xample鏌ヨ錛屽綋鏌ヨ鏉′歡姣旇緝澶氱殑鏃跺欙紝
鍙互鐢‥xample鏌ヨ鏉ョ畝鍖栦唬鐮侊紝浣跨敤鏂規硶濡備笅錛?br />
TUser user=new TUser();
user.setLoginName("hulei");
user.setPassword("hulei");
Criteria ct=session.createCriteria(TUser.class);
ct.add(Example.create(user));
return ct.list();
澶嶅悎鏌ヨ
Criteria鏌ヨ鍙互宓屽Criteria鏉ュ疄鐜板鍚堟煡璇?br />
濡備笅錛?br />
Criteria ct=session.createCriteria(TUser.class);
Criteria ctAddress=ct.createCriteria("addresses");//榪欓噷鏄祵濂椾簡涓涓狢riteria鏌ヨ,榪欓噷鐨刟ddresses鏄疶User鐨勫睘鎬?br />
ctAddress.add(Expression.like("address","%shanghai%"));
List list=ct.list();
I LOVE JAVA 2007-09-24 14:50 鍙戣〃璇勮
]]>銆銆鐢變簬鐩存帴緙栬緫server.xml閰嶇疆榪炴帴姹犲緢瀹規槗鍑虹幇閿欒錛屾垜浼拌鏄痶omcat鐗堟湰闂錛屾病涓増鏈彲鑳介厤緗湁鐐圭偣宸埆錛屾墍浠ユ垜寤鴻浣跨敤鍦╤ttp://localhost/admin/涓繘琛屾暟鎹簮鐨勯厤緗紝涓嬭澆tomcat鐨刟dmin鍖咃紝瀹夎榪囩▼濡備笅
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銆銆鎺ョ潃榪涜瀹夎錛氶偅涓変釜鍗曠嫭鐨勬枃浠朵笉鐢ㄧ錛涙妸conf\Catalina\localhost\涓嬮潰鐨勪竴涓厤緗枃浠禷dmin.xml鏀懼湪浣爐omcat瀹夎鐩綍涓嬮潰鐨凾omcat 5.5\conf\Catalina\localhost\榪欎釜璺緞涓嬶紝鍗寵窡host-manage.xml,manager.xml鏀懼湪涓璧鳳紱鍐嶆妸server\webapps\涓嬮潰鐨刟dmin鍖呮嫹璐濆埌浣犵殑tomcat瀹夎鐩綍涓嬬殑Tomcat 5.5\server\webapps\榪欎釜璺緞涓嬮潰璺焗ost-manager錛宮anager鍖呮斁鍦ㄤ竴鍧椼?br />
銆銆瀹夎鎼炲畾錛岄噸鏂板惎鍔╰omcat錛屽湪鍦板潃鏍忚緭鍏ttp://localhost/admin/,鍦ㄥ嚭鐜扮殑鎴潰閲岄潰杈撳叆浣犲畨瑁卼omcat鐨勬椂鍊欎綘杈撳叆鐨勭敤鎴峰悕鍜屽瘑鐮併?br />
銆銆鐧誨綍鎴愬姛鍚庯紝浼氬嚭鐜癟omcat 鐨剋eb搴旂敤綆＄悊鐣岄潰錛圱omcat Web Server Administration Tool錛夈?br />
銆銆鐒跺悗鍦ㄥ乏杈圭殑鐩綍鏍戠偣鍑?#8220;Data Sources”欏癸紝鍙寵竟鍙互鐪嬪埌JNDI閰嶇疆鐨勯〉闈€?br />
銆銆鍦ㄥ彸涓婅鐨勪笅鎷夋涓夋嫨“Create New Data Source”錛屾帴涓嬫潵濉啓閰嶇疆淇℃伅錛?br />
JNDI Name: jdbc/feng /*榪炴帴姹犵殑鍚嶇О*/
Data Source URL: jdbc:mysql://localhost:3306/bbs /*bbs涓烘暟鎹簱鐨勫悕縐?/
JDBC Driver Class: com.mysql.jdbc.Driver
User Name: root
Password: feng
Max. Active Connections: 鍙敤榛樿鍊?
Max. Idle Connections: 鍙敤榛樿鍊?br /> Max. Wait for Connection: 鍙敤榛樿鍊?br /> Validation Query: 鍙笉濉啓銆?br />
銆銆鐒跺悗錛屾寜涓?#8220;save”鎸夐挳淇濆瓨銆?br />
銆銆鍐嶆寜涓?#8220;Commit Changes”鎸夐挳灝嗛厤緗洿鏀規彁浜ゅ畬鎴愩?br />
銆銆涓嬮潰榪欐姣旇緝閲嶈錛屼笉鍔犲氨浼氬嚭鐜伴敊璇?br />
銆銆鍦紲Context錛烇紲/Context錛炵殑鎻忚堪涓姞涓婃湰web搴旂敤瀵瑰叏灞榪炴帴姹犵殑寮曠敤璇存槑錛屽涓嬫枃瀛楋細
錛淩esourceLink global="jdbc/feng" name="jdbc/feng" type="javax.sql.DataSource"/錛?
銆銆涓鑸兘鏄姞鍦ㄨ櫄鎷熺洰褰曢噷
銆銆綾諱技涓嬮潰
錛淐ontext
crossContext="true"
docBase="D:/feng"
path="/feng"
reloadable="true"錛?br />
錛淩esourceLink global="jdbc/feng" name="jdbc/feng" type="javax.sql.DataSource"/錛?br /> 錛?Context錛?br />
銆銆涓婇潰瀹屾垚鍚庯紝榪橀渶瑕侀厤緗搴旇櫄鎷熺洰褰昗EB搴旂敤鐨剋eb.xml
銆銆鍐呭鍙互鍙傝冧笅闈?br />
錛渨eb-app錛?br /> 錛渞esource-ref錛?br /> 錛渄escription錛濵ySQL DataSource example錛?description錛?br /> 錛渞es-ref-name錛瀓dbc/feng錛?res-ref-name錛?br /> 錛渞es-type錛瀓avax.sql.DataSource錛?res-type錛?br /> 錛渞es-auth錛濩ontainer錛?res-auth錛?br /> 錛?resource-ref錛?br /> 錛?web-app錛?br />
銆銆淇濆瓨D:\feng\WEB-INF\web.xml 鏂囦歡
銆銆搴旂敤紺轟緥
錛?@ page import="java.io.*,java.util.*,java.sql.*,javax.sql.*,javax.naming.*"%錛?br /> 錛?@ page contentType="text/html; charset=GB2312"%錛?br /> 錛渉tml錛?br /> 錛渉ead錛烇紲title錛濪ataSourse Connection Test錛?title錛烇紲/head錛?br /> 錛渂ody錛?br /> 錛?
try{
Connection con;
Statement stmt;
ResultSet rs;
Context ctx = new InitialContext();
DataSource ds=(DataSource)ctx.lookup("java:comp/env/jdbc/feng");
con=ds.getConnection();
stmt=con.createStatement();
rs=stmt.executeQuery("select * from user");
while(rs.next()){
out.println(rs.getString(1));
%錛?br /> 錛渂r錛?br />
錛?
out.print(rs.getString(2));
}
rs.close();
stmt.close();
con.close();
}catch(Exception e){
out.print(e.getMessage());
}
%錛?
錛?body錛?br /> 錛?html錛?
I LOVE JAVA 2007-09-24 14:29 鍙戣〃璇勮
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