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//$Id: NonUniqueObjectException.java,v 1.4 2005/02/12 07:19:50 steveebersole Exp $
2 package org.hibernate;
3
4 import java.io.Serializable
;5
6 import org.hibernate.pretty.MessageHelper;
7
8 /**
9 * This exception is thrown when an operation would
10 * break session-scoped identity. This occurs if the
11 * user tries to associate two different instances of
12 * the same Java class with a particular identifier,
13 * in the scope of a single <tt>Session</tt>.
14 *
15 * @author Gavin King
16 */
17 public class NonUniqueObjectException extends HibernateException {
18 private final Serializable
identifier;19 private final String
entityName;20
21 public NonUniqueObjectException(String
message, Serializable id, String clazz) {22 super(message);
23 this.entityName = clazz;
24 this.identifier = id;
25 }
26
27 public NonUniqueObjectException(Serializable
id, String clazz) {28 this("a different object with the same identifier value was already associated with the session", id, clazz);
29 }
30
31 public Serializable
getIdentifier() {32 return identifier;
33 }
34
35 public String
getMessage() {36 return super.getMessage() + ": " +
37 MessageHelper.infoString(entityName, identifier);
38 }
39
40 public String
getEntityName() {41 return entityName;
42 }
43
44 }
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鏈漢鐢?MyEclipse 6.0.0 寮鍙?Struts + Hibernate搴旂敤鐨勬椂鍊欙紝鍗曠嫭嫻嬭瘯Hibernate鐨勭被娌℃湁闂錛屼絾鏄綋Web灞傚拰Struts鏁村悎鍚庯紝灝辨姏鍑哄涓嬪紓甯革細
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鍘熷洜鏄痬yeclipse 6.0鐨刯ar鍖呴棶棰樸傝繖涓槸myeclipse娌℃湁鍋氬ソ涓ユ牸鐨勬祴璇曘?br />
緗戜笂濂藉浜鴻鏄痗ommons-collectionsXXX.jar鐨勯棶棰樸傛垜涔熶笉鐭ラ亾銆傛垜鏄妸鎵鏈夌殑myeclipse鐢熸垚鐨刯ar閮絩emove buildpath 浜嗐?br /> 鎴戝張鑷繁娣誨姞鐨刯ar銆傚氨OK錛侊紒錛侊紒
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鍒犻櫎PendingFileRenameOperations
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鎵浠ワ紝鎴戝笇鏈涜繛鎺ョ殑澶у涓嶈璧板集璺?br /> 榪欐槸鎴戝啓鐨勭▼搴忥細
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class test {
public static void main(String[] args) {
try {
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
String url ="jdbc:mysql://localhost/demo?user=root&password=billsxm" ;
// demo is datebase name
Connection conn= DriverManager.getConnection(url);
Statement stmt=conn.createStatement();
String sql="select * from my_table";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()) {
System.out.println(rs.getString("name"));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
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