import java.io.Serializable;
import java.sql.Blob;
public class Image implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private Integer id;
private Blob image;
public Image() {
super();
// TODO Auto-generated constructor stub
}
public Image(Integer id, Blob image) {
super();
this.id = id;
this.image = image;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Blob getImage() {
return image;
}
public void setImage(Blob image) {
this.image = image;
}
@Override
public String toString() {
return "Image [id=" + id + ", image=" + image + "]";
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="tk.blank_hibernate.bean">
<class name="Image" table="image" catalog="hiber_jd">
<!-- 映射符主鍵 -->
<id name="id" column="id">
<generator class="native"/>
</id>
<property name="image" column="image" type="blob" />
</class>
</hibernate-mapping>
package tk.blank_hibernate.dao;
import java.io.Serializable;
import java.util.List;
import java.util.Set;
public interface BaseDao {
/**
* 增加數據
*
* @param entity
* @return
*/
void saveObject(Object entity);
/**
* 刪除數據
*
* @param entity
*/
void deleteObject(Object entity);
/**
* 根據ID刪除數據
*
* @param clazz
* @param id
*/
void deleteObject(Class clazz, Serializable id);
/**
* 更改數據
*
* @param entity
*/
void updateObject(Object entity);
/**
* 根據ID查詢數據
*
* @param clazz
* @param id
* @return
*/
Object getObject(Class clazz, Serializable id);
/**
* 根據ID查詢數據
*
* @param clazz
* @param id
* @return
*/
Object loadObject(Class clazz, Serializable id);
/**
* 查詢數據表的所有數據
* @param clazz
* @return
*/
List getObjectAll(Class clazz);
}
package tk.blank_hibernate.dao;
public interface ImageDao extends BaseDao {
}
package tk.blank_hibernate.dao.impl;
import java.io.Serializable;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.hibernate.Session;
import org.hibernate.Transaction;
import tk.blank_hibernate.bean.Goods;
import tk.blank_hibernate.dao.BaseDao;
import tk.blank_hibernate.util.BaseHibernateDaoImpl;
public class BaseDaoImpl extends BaseHibernateDaoImpl implements BaseDao {
@Override
public void saveObject(Object entity) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================saveObject");
Session session = getSessionObject();
Transaction transaction = session.beginTransaction();
session.save(entity);
transaction.commit();
}
@Override
public void deleteObject(Object entity) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================deleteObject");
Session session = getSessionObject();
Transaction transaction = session.beginTransaction();
session.delete(entity);
transaction.commit();
}
@Override
public void deleteObject(Class clazz, Serializable id) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================deleteObject");
Session session = getSessionObject();
Transaction transaction = session.beginTransaction();
session.delete(getObject(clazz, id));
transaction.commit();
}
@Override
public void updateObject(Object entity) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================updateObject");
Session session = getSessionObject();
Transaction transaction = session.beginTransaction();
session.update(entity);
transaction.commit();
}
@Override
public Object getObject(Class clazz, Serializable id) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================getObject");
Session session = getSessionObject();
Transaction transaction = session.beginTransaction();
Object object= session.get(clazz, id);
return object;
}
@Override
public Object loadObject(Class clazz, Serializable id) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================loadObject");
return null;
}
@Override
public List getObjectAll(Class clazz) {
System.out
.println("開始執行BaseDaoImpl中的方法=======================getObjectAll");
Transaction transaction = getSessionObject().beginTransaction();
List list = getSessionObject().createQuery("from "+clazz.getName()).list();
transaction.commit();
return list;
}
}
package tk.blank_hibernate.dao.impl;
import tk.blank_hibernate.dao.ImageDao;
public class ImageDaoImpl extends BaseDaoImpl implements ImageDao {
}
package tk.blank_hibernate.service;
import java.io.Serializable;
import java.util.List;
public interface BaseService {
/**
* 增加數據
*
* @param entity
* @return
*/
void saveObject(Object entity);
/**
* 刪除數據
*
* @param entity
*/
void deleteObject(Object entity);
/**
* 根據ID刪除數據
*
* @param clazz
* @param id
*/
void deleteObject(Class clazz, Serializable id);
/**
* 更改數據
*
* @param entity
*/
void updateObject(Object entity);
/**
* 根據ID查詢數據
*
* @param clazz
* @param id
* @return
*/
Object getObject(Class clazz, Serializable id);
/**
* 根據ID查詢數據
*
* @param clazz
* @param id
* @return
*/
Object loadObject(Class clazz, Serializable id);
/**
* 查詢數據表的所有數據
*
* @param clazz
* @return
*/
List getObjectAll(Class clazz);
}
package tk.blank_hibernate.service;
public interface ImageService extends BaseService {
}
package tk.blank_hibernate.service.impl;
import java.io.Serializable;
import java.util.List;
import tk.blank_hibernate.dao.BaseDao;
import tk.blank_hibernate.dao.impl.BaseDaoImpl;
import tk.blank_hibernate.service.BaseService;
public class BaseServiceImpl implements BaseService {
BaseDao baseDao =new BaseDaoImpl();
@Override
public void saveObject(Object entity) {
System.out.println("開始執行BaseServiceImpl中的方法==============saveObject");
baseDao.saveObject(entity);
}
@Override
public void deleteObject(Object entity) {
System.out.println("開始執行BaseServiceImpl中的方法==============deleteObject");
baseDao.deleteObject(entity);
}
@Override
public void deleteObject(Class clazz, Serializable id) {
System.out.println("開始執行BaseServiceImpl中的方法==============deleteObject");
baseDao.deleteObject(clazz, id);
}
@Override
public void updateObject(Object entity) {
System.out.println("開始執行BaseServiceImpl中的方法==============updateObject");
baseDao.updateObject(entity);
}
@Override
public Object getObject(Class clazz, Serializable id) {
System.out.println("開始執行BaseServiceImpl中的方法==============getObject");
return baseDao.getObject(clazz, id);
}
@Override
public Object loadObject(Class clazz, Serializable id) {
System.out.println("開始執行BaseServiceImpl中的方法==============loadObject");
return baseDao.loadObject(clazz, id);
}
@Override
public List getObjectAll(Class clazz) {
System.out.println("開始執行BaseServiceImpl中的方法==============getObjectAll");
return baseDao.getObjectAll(clazz);
}
}
package tk.blank_hibernate.service.impl;
import tk.blank_hibernate.service.ImageService;
public class ImageServiceImpl extends BaseServiceImpl implements ImageService {
}
package tk.blank_hibernate.util;
import org.hibernate.Session;
public interface IHibernateConnection {
public Session getSessionObject();
}
package tk.blank_hibernate.util;
import org.hibernate.Session;
public class BaseHibernateDaoImpl implements IHibernateConnection {
@Override
public Session getSessionObject() {
return HiberUtil.openSession();
}
}
package tk.blank_hibernate.util;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
public class HiberUtil {
static Configuration cfg;
static ServiceRegistry serviceRegistry;
static SessionFactory sessionFactory;
static{
cfg=new Configuration().configure();
serviceRegistry=new StandardServiceRegistryBuilder().applySettings(cfg.getProperties()).build();
sessionFactory =cfg.buildSessionFactory(serviceRegistry);
}
public static Session openSession(){
//返回當前的session的連接對象
return sessionFactory.getCurrentSession();
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="connection.url">
jdbc:mysql://localhost:3306/hiber_jd
</property>
<property name="connection.username">root</property>
<property name="connection.password">admin</property>
<!-- 數據庫的方言 -->
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- 顯示操作的sql語句 -->
<property name="hibernate.show_sql">true</property>
<!-- 格式sql語句 -->
<property name="hibernate.format_sql">false</property>
<!-- 自動創建和更新表結構 -->
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping resource="tk/blank_hibernate/bean/Image.hbm.xml" />
</session-factory>
</hibernate-configuration>
package tk.blank_hibernate.junit;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Blob;
import java.sql.SQLException;
import org.hibernate.Hibernate;
import org.junit.Test;
import tk.blank_hibernate.bean.Image;
import tk.blank_hibernate.service.ImageService;
import tk.blank_hibernate.service.impl.ImageServiceImpl;
import tk.blank_hibernate.util.HiberUtil;
public class ImageTest {
// 創建ImageService處理對象
ImageService imageService = new ImageServiceImpl();
@Test
public void save() {
// 創建img對象
Image image = new Image();
// 讀取文件
File file = new File("F:\\webprogect\\hibernate_jd\\src\\ni.jpg");
try {
// 創建文件的輸入流,將文件加載到流中
FileInputStream fis = new FileInputStream(file);
// 創建blob大數據對象|||||在4之後要用這樣的方式獲取
Blob blob = Hibernate.getLobCreator(HiberUtil.openSession())
.createBlob(fis, file.length());
//將大數據存儲到
image.setImage(blob);
imageService.saveObject(image);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Test
public void getImage() throws SQLException {
Image image = (Image) imageService.getObject(Image.class, 1);
// 判斷得到得數據是否爲空
if (image != null) {
InputStream is = image.getImage().getBinaryStream();
File file = new File("D:\\a.jpg");
try {
FileOutputStream fos = new FileOutputStream(file);
byte buffer[] = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
fos.write(buffer, 0, len);
}
fos.close();
is.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}