Hibernate Blob 操作问题！

ax3536
数据库是ORACLE8.15，现在现象是好像一切都正常，日志也正常，可是数据库中始终没有数据，大大帮帮忙阿！

对应的JAVA文件和HBM如下

package com.sunix;

import java.io.Serializable;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import java.sql.Blob;
/ @author Hibernate CodeGenerator */
public class Blobtest implements Serializable {

/ identifier field */
private String bid;

/ nullable persistent field */
private Blob bcontent;

/ full constructor */
public Blobtest(Blob bcontent) {
this.bcontent = bcontent;
}

/** default constructor */
public Blobtest() {
}

public java.lang.String getBid() {
return this.bid;
}

public void setBid(java.lang.String bid) {
this.bid = bid;
}

public Blob getBcontent() {
return this.bcontent;
}

public void setBcontent(Blob bcontent) {
this.bcontent = bcontent;
}

public String toString() {
return new ToStringBuilder(this)
.append("bid", getBid())
.toString();
}

public boolean equals(Object other) {
if ( !(other instanceof Blobtest) ) return false;
Blobtest castOther = (Blobtest) other;
return new EqualsBuilder()
.append(this.getBid(), castOther.getBid())
.isEquals();
}

public int hashCode() {
return new HashCodeBuilder()
.append(getBid())
.toHashCode();
}

}










管理SESSION的那个就不贴了，是从LIFERAY里COPY出来的
下面这个是用来写Blob的类
package com.sunix;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.*;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.cfg.Configuration;
import com.sunix.Blobtest;
import com.sunix.hibernate.*;

public class testBlob {
private Session session=null;
public testBlob() {
}
public void add(String _content){
try{
session=hibernatesession.openSession();
Blobtest bt=new Blobtest();
//之所以这么写BLOB是因为我在HIBERNATE的TEST的原码中看到的
bt.setBcontent(Hibernate.createBlob(_content.getBytes()));
session.save(bt);
session.flush();
}catch(Exception ex){
ex.printStackTrace();
System.out.println(ex.getMessage());
}
finally {
hibernatesession.closeSession(session);
}

}
}

日志：

2003-8-25 15:51:44 net.sf.hibernate.cfg.Environment

信息: using java.io streams to persist binary types

2003-8-25 15:51:44 net.sf.hibernate.cfg.Environment

信息: using CGLIB reflection optimizer

2003-8-25 15:51:44 net.sf.hibernate.cfg.Environment

信息: JVM proxy support: true

2003-8-25 15:51:44 net.sf.hibernate.cfg.Configuration addClass

信息: Mapping resource: com/sunix/Blobtest.hbm.xml

2003-8-25 15:51:45 net.sf.hibernate.cfg.Binder bindRootClass

信息: Mapping class: com.sunix.Blobtest -> BLOBTEST

2003-8-25 15:51:46 net.sf.hibernate.cfg.Configuration secondPassCompile

信息: processing one-to-many association mappings

2003-8-25 15:51:46 net.sf.hibernate.cfg.Configuration secondPassCompile

信息: processing one-to-one association property references

2003-8-25 15:51:46 net.sf.hibernate.cfg.Configuration secondPassCompile

信息: processing foreign key constraints

2003-8-25 15:51:46 net.sf.hibernate.impl.SessionFactoryImpl

信息: building session factory

2003-8-25 15:51:46 net.sf.hibernate.dialect.Dialect

信息: Using dialect: net.sf.hibernate.dialect.OracleDialect

2003-8-25 15:51:46 net.sf.hibernate.cfg.SettingsFactory buildSettings

信息: Use outer join fetching: true

2003-8-25 15:51:46 net.sf.hibernate.connection.DriverManagerConnectionProvider configure

信息: Hibernate connection pool size: 20

2003-8-25 15:51:47 net.sf.hibernate.cfg.SettingsFactory buildSettings

信息: Use scrollable result sets: true

2003-8-25 15:51:47 net.sf.hibernate.cfg.SettingsFactory buildSettings

信息: JDBC 2 max batch size: 15

2003-8-25 15:51:47 net.sf.hibernate.cfg.SettingsFactory buildSettings

信息: echoing all SQL to stdout

2003-8-25 15:51:47 net.sf.hibernate.cfg.SettingsFactory buildSettings

信息: Query language substitutions: {}

2003-8-25 15:51:47 net.sf.hibernate.ps.PreparedStatementCache

信息: prepared statement cache size: 6

2003-8-25 15:51:48 net.sf.hibernate.impl.SessionFactoryObjectFactory addInstance

信息: no JNDI name configured

Hibernate: insert into ll.BLOBTEST (BCONTENT, BID) values (?, ?)

ax3536 2003-08-25 15:56
为什么看不到XML？再贴：





ax3536 2003-08-25 15:56
为什么看不到XML？再贴：





ax3536 2003-08-25 15:58

其他不管了，这个是关键部分，看看能显示不？
ax3536 2003-08-25 15:59
我555～什么论坛阿，又不能编辑，又不能删除，XML贴上来怎么也看不到
robbin 2003-08-25 16:34
ax3536 2003-08-25 17:07
我真弱阿，其实到了HIBERNATE里面，操作ORACLE的BLOB和CLOB应该是跟JDBC一样的步骤，
1。建立一个新的空记录；
2.加入内容

可是你看他TEST里的例子
public void testBlobClob() throws Exception {

if ( dialect instanceof MySQLDialect || dialect instanceof PostgreSQLDialect || dialect instanceof HSQLDialect ) return;

Session s = sessions.openSession();
Blobber b = new Blobber();
b.setBlob( Hibernate.createBlob( "foo/bar/baz".getBytes() ) );
b.setClob( Hibernate.createClob("foo/bar/baz") );
s.save(b);
//s.refresh(b);
//assertTrue( b.getClob() instanceof ClobImpl );
s.flush();
s.refresh(b);
//b.getBlob().setBytes( 2, "abc".getBytes() );
b.getClob().getSubString(2, 3);
//b.getClob().setString(2, "abc");
s.flush();
s.connection().commit();
s.close();

s = sessions.openSession();
b = (Blobber) s.load( Blobber.class, new Integer( b.getId() ) );
Blobber b2 = new Blobber();
s.save(b2);
b2.setBlob( b.getBlob() );
b.setBlob(null);
//assertTrue( b.getClob().getSubString(1, 3).equals("fab") );
b.getClob().getSubString(1, 6);
//b.getClob().setString(1, "qwerty");
s.flush();
s.connection().commit();
s.close();

s = sessions.openSession();
b = (Blobber) s.load( Blobber.class, new Integer( b.getId() ) );
b.setClob( Hibernate.createClob("xcvfxvc xcvbx cvbx cvbx cvbxcvbxcvbxcvb") );
s.flush();
s.connection().commit();
s.close();

s = sessions.openSession();
b = (Blobber) s.load( Blobber.class, new Integer( b.getId() ) );
assertTrue( b.getClob().getSubString(1, 7).equals("xcvfxvc") );
//b.getClob().setString(5, "1234567890");
s.flush();
s.connection().commit();
s.close();

这就不太一样了。原以为用HIBERNATE后，至少能同一对不同数据库BLOB字段的操作方式，看来还是不行