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hibernate操作mysql的blob數(shù)據(jù)

package hibernate;

import java.sql.Blob;

public class Blobtest implements java.io.Serializable {

private long id;

private Blob image;

public Blobtest() {

}

public Blobtest(Blob image) {

this.image = image;

}

public long getId() {

return this.id;

}

public void setId(long id) {

this.id = id;

}

public Blob getImage() {

return this.image;

}

public void setImage(Blob image) {

this.image = image;

}

測(cè)試寫入數(shù)據(jù)：

package hibernate;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import org.hibernate.Hibernate;

import org.hibernate.Session;

import org.hibernate.Transaction;

public class Test {

public static void main(String[] args) throws IOException {

InputStream in = new FileInputStream("F:/lzx.jpg");

byte[] b = new byte[in.available()];

in.read(b);

in.close();

Blobtest blobTest=new Blobtest();

blobTest.setImage(Hibernate.createBlob(b));

Session session=HibernateUtil.currentSession();

Transaction tx=session.beginTransaction();

session.save(blobTest);

tx.commit();

System.out.print("success");

HibernateUtil.closeSession();

}

讀出數(shù)據(jù)：

package hibernate;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.sql.SQLException;

import org.hibernate.Session;

import org.hibernate.Transaction;

public class TestWrite {

public static void main(String[] args) throws IOException, SQLException {

Session session=HibernateUtil.currentSession();

Transaction tx=session.beginTransaction();

Blobtest blobTest = new Blobtest();

blobTest = (Blobtest) session.get(Blobtest.class, new Long(1));

System.out.println("qu chu shu ju");

OutputStream out = new FileOutputStream("F:/111.jpg");

out.write(blobTest.getImage().getBytes(1,(int) blobTest.getImage().length()));

out.flush();

out.close();

HibernateUtil.closeSession();

}

posted on 2006-06-25 02:00 狒狒閱讀(3215) 評(píng)論(1) 編輯收藏

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# re: hibernate操作mysql的blob數(shù)據(jù) 2006-07-31 09:09 林

請(qǐng)問(wèn)org.hibernate.Hibernate在那個(gè)jar中？回復(fù) 更多評(píng)論

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hibernate操作mysql的blob數(shù)據(jù)

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# re: hibernate操作mysql的blob數(shù)據(jù) 2006-07-31 09:09 林

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