1、需要先创建学生实体：
package pers.zhb.domain;
public class Student {
private int studentno;
private String sname;
private String sex;
private String birthday;
private String classno;
private float point;
private String phone;
private String email;
@Override
public String toString() {
return "Student{" +
"studentno='" + studentno + '\'' +
", sname='" + sname + '\'' +
", sex='" + sex + '\'' +
", birthday='" + birthday + '\'' +
", classno='" + classno + '\'' +
", point=" + point +
", phone='" + phone + '\'' +
", email='" + email + '\'' +
'}';
}
public int getStudentno() {
return studentno;
}
public void setStudentno(int studentno) {
this.studentno = studentno;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getBirthday() {
return birthday;
}
public void setBirthday(String birthday) {
this.birthday = birthday;
}
public String getClassno() {
return classno;
}
public void setClassno(String classno) {
this.classno = classno;
}
public float getPoint() {
return point;
}
public void setPoint(float point) {
this.point = point;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
2、学生实体与学生表的映射文件（Student.hbm.xml）：
<?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="pers.zhb.domain">
<class name="Student" table="student">
<id name="studentno" column="studentno">
<generator class="native"></generator>
</id>
<property name="birthday" column="birthday"></property>
<property name="classno" column="classno"></property>
<property name="email" column="email"></property>
<property name="phone" column="phone"></property>
<property name="sex" column="sex"></property>
<property name="sname" column="sname"></property>
<property name="point" column="point"></property>
</class>
</hibernate-mapping>
3、主配置文件（hibernate.cfg.xml）：
<?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>
<!--配置数据库信息-必须的-->
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/stu_mangement</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<!--配置hibernate信息-可选的-->
<property name="hibernate.show_sql">true</property><!--输出底层sql语句-->
<property name="hibernate.format_sql">true</property><!--格式化输出sql语句-->
<property name="hibernate.hbm2ddl.auto">create</property><!--hibernate帮助创建表，如果已经有表更新表，
如果没有则创建新表-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!--配置数据库的方言，让hibernate识别框架自己的特有语句-->
<!--把映射文件放到核心配置文件-->
<mapping resource="pers/zhb/domain/Student.hbm.xml"/><!--都在src目录下-->
</session-factory>
</hibernate-configuration>
4、添加学生信息：
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import pers.zhb.domain.Student;
class HinernateTest{
public static void testAdd() {
//(1)加载hibernate核心配置文件
//src目录下的配置文件名称是固定的：hibernate.cfg.xml
Configuration configuration= new Configuration();
configuration.configure();
//(2)读取hibernate核心配置文件的内容，创建sessionFactory对象，根据映射关系创建相应的表
SessionFactory sessionFactory=configuration.buildSessionFactory();
//（3）利用sessionFactory对象创建session对象
//类似于创建连接
Session session=sessionFactory.openSession();
//(4)开启事务
Transaction transaction=session.beginTransaction();
//(5)具体操作
Student student=new Student();
student.setSname("zzzz");
student.setSex("男");
student.setBirthday("2019-11-11");
student.setClassno("201911");
student.setPoint(111);
student.setPhone("1873496511");
student.setEmail("20171514@qq.com");
session.save(student);
//(6)提交事务
transaction.commit();
//（7）关闭资源
session.close();
sessionFactory.close();
}
public static void main(String []args){
HinernateTest hinernateTest=new HinernateTest();
hinernateTest.testAdd();
}
}
获取学生对象，并对该对象设置值。
5、查询学生信息（根据主键查询）：
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import pers.zhb.domain.Student;
public class HiberateSel {
public static void testSel() {
Configuration configuration = new Configuration();
configuration.configure();
SessionFactory sessionFactory = configuration.buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
Student student=session.get(Student.class,824113307);
System.out.println(student);
transaction.commit();
session.close();
sessionFactory.close();
}
public static void main(String []args){
HiberateSel hinernateSel=new HiberateSel();
hinernateSel.testSel();
}
}
即直接获取学生对象。
6、修改学生信息：
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import pers.zhb.domain.Student;
public class HibernateUpdate {
public static void testUpdate() {
Configuration configuration = new Configuration();
configuration.configure();
SessionFactory sessionFactory = configuration.buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
//获得要修改的对象
Student student=session.get(Student.class,824113307);
student.setEmail("201715@qq.com");
student.setClassno("1234567");
student.setPhone("18739496622");
student.setBirthday("2019-11-11");
student.setSex("女");
student.setSname("tom");
student.setPoint(666);
transaction.commit();
session.close();
sessionFactory.close();
}
public static void main(String []args){
HibernateUpdate hibernateUpdate=new HibernateUpdate();
hibernateUpdate.testUpdate();
}
}
需要先通过主键获取要修改的学生对象，然后对相应的学生属性进行修改。
7、删除学生：
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import pers.zhb.domain.Student;
public class HibernateDel{
public static void testDel() {
Configuration configuration = new Configuration();
configuration.configure();
SessionFactory sessionFactory = configuration.buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
//获得要修改的对象
Student student=session.get(Student.class,824113307);
session.delete(student);
transaction.commit();
session.close();
sessionFactory.close();
}
public static void main(String []args){
HibernateDel hibernateDel=new HibernateDel();
hibernateDel.testDel();
}
}
通过主键查找到学生对象，调用函数删除该学生。