Hibetnate（网上学习资料转载）
2011-03-30 17:36
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Hibetnate（网上学习资料转载）
Hibetnate（学习1）
Hibernate开发的步骤：
第一：持久化类:ORM的主要特点 对象（POJO）----à数据库
第二：类和数据库关系的映射（*.hbm.xml）
第三：应用程序的开发
Hibernate的操作
数据库如下：
id为指派形式
Hibernate环境的搭建
1. Hibernate.cfg.xml配置文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property>
<property
name="hibernate.connection.url">jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=hibernate</property>
<property name="hibernate.connection.username">sa</property>
<property name="hibernate.connection.password"/>
<property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
<property name="hibernate.show_sql">true</property>
<mapping resource="com/Person.hbm.xml"/>
</session-factory>
</hibernate-configuration>
2. 持久化类 Person.java
package com;
// Generated 2008-11-29 10:41:49 by Hibernate Tools 3.2.1.GA
/**
* Person generated by hbm2java
*/
public class Person implements java.io.Serializable {
private String id;
private String name;
private String password;
private String sex;
private String email;
public Person() {
}
public Person(String id, String name, String password) {
this.id = id;
this.name = name;
this.password = password;
}
public Person(String id, String name, String password, String sex, String email) {
this.id = id;
this.name = name;
this.password = password;
this.sex = sex;
this.email = email;
}
public String getId() {
return this.id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSex() {
return this.sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getEmail() {
return this.email;
}
public void setEmail(String email) {
this.email = email;
}
}
3. 映射文件 Person.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2008-11-29 10:42:17 by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="com.Person" table="person" schema="dbo" catalog="hibernate">
<id name="id" type="string">
<column name="id" length="32" />
<generator class="assigned" />
</id>
<property name="name" type="string">
<column name="name" length="20" not-null="true" />
</property>
<property name="password" type="string">
<column name="password" length="20" not-null="true" />
</property>
<property name="sex" type="string">
<column name="sex" length="2" />
</property>
<property name="email" type="string">
<column name="email" length="30" />
</property>
</class>
</hibernate-mapping>
现在基本上ok，所需环境完成
Hibernate(学习2)
上一节已经配置好了，下来进行插入操作
PersonOperate.java
package com;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session=null;
public PersonOperate() {
Configuration config =new Configuration().configure();
SessionFactory factory=config.buildSessionFactory();
this.session=factory.openSession();
}
//插入
public void insert(Person p){
Transaction tran=this.session.beginTransaction();
this.session.save(p);
tran.commit();
this.session.close();
}
}
TestPO.java
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Person p = new Person();
p.setId("我爱飞飞哦");
p.setName("qunqun");
p.setSex("女");
p.setPassword("123456");
p.setEmail("zdq0426@166.com
");
PersonOperate po = new PersonOperate();
po.insert(p);
}
}
hibernate（学习3）
PersonOperate.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session=null;
public PersonOperate() {
Configuration config =new Configuration().configure();
SessionFactory factory=config.buildSessionFactory();
this.session=factory.openSession();
}
//插入
public void update(Person p){
Transaction tran=this.session.beginTransaction();
this.session.update(p);
tran.commit();
this.session.close();
}
}
TestPO.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Person p = new Person();
p.setId("我爱飞飞哦");
p.setName("qunqun");
p.setSex("男");
p.setPassword("321456");
p.setEmail("zdq0426@126.com
");
PersonOperate po = new PersonOperate();
po.update(p);
}
}
修改的时候一般不会变得id，修改的是其他的信息，id必须存在
hibernate(学习4)
查询操作
PersonOperate.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 按ID查询：推荐使用HQL —— 是Hibernate官方推荐的查询语言
public Person queryById(String id) {
Person p = null;
// 使用Hibernate查询语言
String hql = "FROM Person as p WHERE p.id=?";
// 通过Query接口查询
Query q = this.session.createQuery(hql);
q.setString(0, id);
List l = q.list();
Iterator iter = l.iterator();
if (iter.hasNext()) {
p = (Person) iter.next();
}
return p;
}
}
TestPO.java
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
Person p = po.queryById("123");
System.out.print(p.getName());
}
}
hibernate(学习5)
查询全部
package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 查询全部数据，写HQL
public List queryAll() {
List l = null;
String hql = "FROM Person as p";
Query q = this.session.createQuery(hql);
l = q.list();
return l;
}
}
TestPO.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
List l = po.queryAll();
Iterator iter = l.iterator();
while (iter.hasNext()) {
Person p = (Person) iter.next();
System.out.println(p.getId());
}
}
}
hibernate(学习6)
模糊查询
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 模糊查询
public List queryByLike(String cond) {
List l = null;
String hql = "FROM Person as p WHERE p.name like ?";
Query q = this.session.createQuery(hql);
q.setString(0, "%" + cond + "%");
l = q.list();
return l;
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
List l = po.queryByLike("qun");
Iterator iter = l.iterator();
while (iter.hasNext()) {
Person p = (Person) iter.next();
System.out.println(p.getName());
}
}
}
hibernate(学习7)
删除操作
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 按ID查询：推荐使用HQL —— 是Hibernate官方推荐的查询语言
public Person queryById(String id) {
Person p = null;
// 使用Hibernate查询语言
String hql = "FROM Person as p WHERE p.id=?";
// 通过Query接口查询
Query q = this.session.createQuery(hql);
q.setString(0, id);
List l = q.list();
Iterator iter = l.iterator();
if (iter.hasNext()) {
p = (Person) iter.next();
}
return p;
}
// 删除数据
// Hibernate2、Hibernate 3通用的删除
// 使用此方法删除数据之前，必须先查找到数据对象，性能呢？，效率低，先查询，在删除
public void delete(Person p) {
Transaction tran = this.session.beginTransaction();
// 执行语句
this.session.delete(p);
// 提交事务
tran.commit();
}
// 在Hibernate 3之中根据HQL中的语句进行了修改，增加了删除指令 ,推荐使用此方法
public void delete(String id) {
String hql = "DELETE Person WHERE id=?";
Query q = this.session.createQuery(hql);
// 把参数设置
q.setString(0, id);
// 执行更新语句
q.executeUpdate();
// 进行事务处理
this.session.beginTransaction().commit();
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
/*
PersonOperate po = new PersonOperate();
Person p=po.queryById("123");
System.out.println(p.getName());
po.delete(p);
*/
PersonOperate po = new PersonOperate();
po.delete("我爱飞飞哦");
}
}
Hibetnate（学习1）
Hibernate开发的步骤：
第一：持久化类:ORM的主要特点 对象（POJO）----à数据库
第二：类和数据库关系的映射（*.hbm.xml）
第三：应用程序的开发
Hibernate的操作
数据库如下：
id为指派形式
Hibernate环境的搭建
1. Hibernate.cfg.xml配置文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property>
<property
name="hibernate.connection.url">jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=hibernate</property>
<property name="hibernate.connection.username">sa</property>
<property name="hibernate.connection.password"/>
<property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
<property name="hibernate.show_sql">true</property>
<mapping resource="com/Person.hbm.xml"/>
</session-factory>
</hibernate-configuration>
2. 持久化类 Person.java
package com;
// Generated 2008-11-29 10:41:49 by Hibernate Tools 3.2.1.GA
/**
* Person generated by hbm2java
*/
public class Person implements java.io.Serializable {
private String id;
private String name;
private String password;
private String sex;
private String email;
public Person() {
}
public Person(String id, String name, String password) {
this.id = id;
this.name = name;
this.password = password;
}
public Person(String id, String name, String password, String sex, String email) {
this.id = id;
this.name = name;
this.password = password;
this.sex = sex;
this.email = email;
}
public String getId() {
return this.id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSex() {
return this.sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getEmail() {
return this.email;
}
public void setEmail(String email) {
this.email = email;
}
}
3. 映射文件 Person.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2008-11-29 10:42:17 by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="com.Person" table="person" schema="dbo" catalog="hibernate">
<id name="id" type="string">
<column name="id" length="32" />
<generator class="assigned" />
</id>
<property name="name" type="string">
<column name="name" length="20" not-null="true" />
</property>
<property name="password" type="string">
<column name="password" length="20" not-null="true" />
</property>
<property name="sex" type="string">
<column name="sex" length="2" />
</property>
<property name="email" type="string">
<column name="email" length="30" />
</property>
</class>
</hibernate-mapping>
现在基本上ok，所需环境完成
Hibernate(学习2)
上一节已经配置好了，下来进行插入操作PersonOperate.java
package com;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session=null;
public PersonOperate() {
Configuration config =new Configuration().configure();
SessionFactory factory=config.buildSessionFactory();
this.session=factory.openSession();
}
//插入
public void insert(Person p){
Transaction tran=this.session.beginTransaction();
this.session.save(p);
tran.commit();
this.session.close();
}
}
TestPO.java
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Person p = new Person();
p.setId("我爱飞飞哦");
p.setName("qunqun");
p.setSex("女");
p.setPassword("123456");
p.setEmail("zdq0426@166.com
");
PersonOperate po = new PersonOperate();
po.insert(p);
}
}
hibernate（学习3）
PersonOperate.java/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session=null;
public PersonOperate() {
Configuration config =new Configuration().configure();
SessionFactory factory=config.buildSessionFactory();
this.session=factory.openSession();
}
//插入
public void update(Person p){
Transaction tran=this.session.beginTransaction();
this.session.update(p);
tran.commit();
this.session.close();
}
}
TestPO.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Person p = new Person();
p.setId("我爱飞飞哦");
p.setName("qunqun");
p.setSex("男");
p.setPassword("321456");
p.setEmail("zdq0426@126.com
");
PersonOperate po = new PersonOperate();
po.update(p);
}
}
修改的时候一般不会变得id，修改的是其他的信息，id必须存在
hibernate(学习4)
查询操作 PersonOperate.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 按ID查询：推荐使用HQL —— 是Hibernate官方推荐的查询语言
public Person queryById(String id) {
Person p = null;
// 使用Hibernate查询语言
String hql = "FROM Person as p WHERE p.id=?";
// 通过Query接口查询
Query q = this.session.createQuery(hql);
q.setString(0, id);
List l = q.list();
Iterator iter = l.iterator();
if (iter.hasNext()) {
p = (Person) iter.next();
}
return p;
}
}
TestPO.java
package com;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
Person p = po.queryById("123");
System.out.print(p.getName());
}
}
hibernate(学习5)
查询全部package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 查询全部数据，写HQL
public List queryAll() {
List l = null;
String hql = "FROM Person as p";
Query q = this.session.createQuery(hql);
l = q.list();
return l;
}
}
TestPO.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
List l = po.queryAll();
Iterator iter = l.iterator();
while (iter.hasNext()) {
Person p = (Person) iter.next();
System.out.println(p.getId());
}
}
}
hibernate(学习6)
模糊查询/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 模糊查询
public List queryByLike(String cond) {
List l = null;
String hql = "FROM Person as p WHERE p.name like ?";
Query q = this.session.createQuery(hql);
q.setString(0, "%" + cond + "%");
l = q.list();
return l;
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
PersonOperate po = new PersonOperate();
List l = po.queryByLike("qun");
Iterator iter = l.iterator();
while (iter.hasNext()) {
Person p = (Person) iter.next();
System.out.println(p.getName());
}
}
}
hibernate(学习7)
删除操作/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
/**
*
* @author Administrator
*/
public class PersonOperate {
private Session session = null;
public PersonOperate() {
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
this.session = factory.openSession();
}
// 按ID查询：推荐使用HQL —— 是Hibernate官方推荐的查询语言
public Person queryById(String id) {
Person p = null;
// 使用Hibernate查询语言
String hql = "FROM Person as p WHERE p.id=?";
// 通过Query接口查询
Query q = this.session.createQuery(hql);
q.setString(0, id);
List l = q.list();
Iterator iter = l.iterator();
if (iter.hasNext()) {
p = (Person) iter.next();
}
return p;
}
// 删除数据
// Hibernate2、Hibernate 3通用的删除
// 使用此方法删除数据之前，必须先查找到数据对象，性能呢？，效率低，先查询，在删除
public void delete(Person p) {
Transaction tran = this.session.beginTransaction();
// 执行语句
this.session.delete(p);
// 提交事务
tran.commit();
}
// 在Hibernate 3之中根据HQL中的语句进行了修改，增加了删除指令 ,推荐使用此方法
public void delete(String id) {
String hql = "DELETE Person WHERE id=?";
Query q = this.session.createQuery(hql);
// 把参数设置
q.setString(0, id);
// 执行更新语句
q.executeUpdate();
// 进行事务处理
this.session.beginTransaction().commit();
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Administrator
*/
public class TestPO {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
/*
PersonOperate po = new PersonOperate();
Person p=po.queryById("123");
System.out.println(p.getName());
po.delete(p);
*/
PersonOperate po = new PersonOperate();
po.delete("我爱飞飞哦");
}
}
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