解压后将lib/required文件夹下所有jar包导入工程(全部复制粘贴)
导入数据库驱动包,导入mysql-connector-java-5.1.7-bin.jar(MySQL数据库驱动)
创建数据库
CREATE TABLE `cst_customer` (
`cust_id` BIGINT(32) NOT NULL AUTO_INCREMENT COMMENT '客户编号(主键)',
`cust_name` VARCHAR(32) NOT NULL COMMENT '客户名称(公司名称)',
`cust_user_id` BIGINT(32) DEFAULT NULL COMMENT '负责人id',
`cust_create_id` BIGINT(32) DEFAULT NULL COMMENT '创建人id',
`cust_source` VARCHAR(32) DEFAULT NULL COMMENT '客户信息来源',
`cust_industry` VARCHAR(32) DEFAULT NULL COMMENT '客户所属行业',
`cust_level` VARCHAR(32) DEFAULT NULL COMMENT '客户级别',
`cust_linkman` VARCHAR(64) DEFAULT NULL COMMENT '联系人',
`cust_phone` VARCHAR(64) DEFAULT NULL COMMENT '固定电话',
`cust_mobile` VARCHAR(16) DEFAULT NULL COMMENT '移动电话',
PRIMARY KEY (`cust_id`)
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
创建表实体Bean
package cn.itheima.domain;
public class Customer {
/*
* CREATE TABLE `cst_customer` (
`cust_id` BIGINT(32) NOT NULL AUTO_INCREMENT COMMENT '客户编号(主键)',
`cust_name` VARCHAR(32) NOT NULL COMMENT '客户名称(公司名称)',
`cust_source` VARCHAR(32) DEFAULT NULL COMMENT '客户信息来源',
`cust_industry` VARCHAR(32) DEFAULT NULL COMMENT '客户所属行业',
`cust_level` VARCHAR(32) DEFAULT NULL COMMENT '客户级别',
`cust_linkman` VARCHAR(64) DEFAULT NULL COMMENT '联系人',
`cust_phone` VARCHAR(64) DEFAULT NULL COMMENT '固定电话',
`cust_mobile` VARCHAR(16) DEFAULT NULL COMMENT '移动电话',
PRIMARY KEY (`cust_id`)
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
*/
private Long cust_id;
private String cust_name;
private String cust_source;
private String cust_industry;
private String cust_level;
private String cust_linkman;
private String cust_phone;
private String cust_mobile;
public Long getCust_id() {
return cust_id;
}
public void setCust_id(Long cust_id) {
this.cust_id = cust_id;
}
public String getCust_name() {
return cust_name;
}
public void setCust_name(String cust_name) {
this.cust_name = cust_name;
}
public String getCust_source() {
return cust_source;
}
public void setCust_source(String cust_source) {
this.cust_source = cust_source;
}
public String getCust_industry() {
return cust_industry;
}
public void setCust_industry(String cust_industry) {
this.cust_industry = cust_industry;
}
public String getCust_level() {
return cust_level;
}
public void setCust_level(String cust_level) {
this.cust_level = cust_level;
}
public String getCust_linkman() {
return cust_linkman;
}
public void setCust_linkman(String cust_linkman) {
this.cust_linkman = cust_linkman;
}
public String getCust_phone() {
return cust_phone;
}
public void setCust_phone(String cust_phone) {
this.cust_phone = cust_phone;
}
public String getCust_mobile() {
return cust_mobile;
}
public void setCust_mobile(String cust_mobile) {
this.cust_mobile = cust_mobile;
}
@Override
public String toString() {
return "Customer [cust_id=" + cust_id + ", cust_name=" + cust_name + "]";
}
}
com.mysql.jdbc.Driver
jdbc:mysql:///hibernate_32
root
1234
org.hibernate.dialect.MySQLDialect
true
true
update
package cn.itheima.b_api;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.junit.Test;
import cn.itheima.domain.Customer;
//学习Session对象
//session对象功能: 表达hibernate框架与数据库之间的连接(会话).session类似于
// JDBC年代的connection对象. 还可以完成对数据库中数据的增删改查操作.
// session是hibernate操作数据库的核心对象
public class Demo3 {
@Test
//事务操作
public void fun1(){
//1 创建,调用空参构造
Configuration conf = new Configuration().configure();
//2 根据配置信息,创建 SessionFactory对象
SessionFactory sf = conf.buildSessionFactory();
//3 获得session
Session session = sf.openSession();
//4 session获得操作事务的Transaction对象
//获得操作事务的tx对象
//Transaction tx = session.getTransaction();
//开启事务并获得操作事务的tx对象(建议使用)
Transaction tx2 = session.beginTransaction();
//----------------------------------------------
//----------------------------------------------
tx2.commit();//提交事务
tx2.rollback();//回滚事务
session.close();//释放资源
sf.close();//释放资源
}
@Test
//session的新增
public void fun2(){
//1 创建,调用空参构造
Configuration conf = new Configuration().configure();
//2 根据配置信息,创建 SessionFactory对象
SessionFactory sf = conf.buildSessionFactory();
//3 获得session
Session session = sf.openSession();
//4 session获得操作事务的Transaction对象
//获得操作事务的tx对象
//Transaction tx = session.getTransaction();
//开启事务并获得操作事务的tx对象(建议使用)
Transaction tx2 = session.beginTransaction();
//----------------------------------------------
Customer c = new Customer();
c.setCust_name("传智播客");
session.save(c);
//----------------------------------------------
tx2.commit();//提交事务
session.close();//释放资源
sf.close();//释放资源
}
@Test
//session的查询
//查询id为1的customer对象
public void fun3(){
//1 创建,调用空参构造
Configuration conf = new Configuration().configure();
//2 根据配置信息,创建 SessionFactory对象
SessionFactory sf = conf.buildSessionFactory();
//3 获得session
Session session = sf.openSession();
//4 session获得操作事务的Transaction对象
//获得操作事务的tx对象
//Transaction tx = session.getTransaction();
//开启事务并获得操作事务的tx对象(建议使用)
Transaction tx2 = session.beginTransaction();
//----------------------------------------------
Customer customer = session.get(Customer.class, 1l);
System.out.println(customer);
//----------------------------------------------
tx2.commit();//提交事务
session.close();//释放资源
sf.close();//释放资源
}
@Test
//session的修改
//修改id为1的customer对象的name属性为黑马程序员
public void fun4(){
//1 创建,调用空参构造
Configuration conf = new Configuration().configure();
//2 根据配置信息,创建 SessionFactory对象
SessionFactory sf = conf.buildSessionFactory();
//3 获得session
Session session = sf.openSession();
//4 session获得操作事务的Transaction对象
//获得操作事务的tx对象
//Transaction tx = session.getTransaction();
//开启事务并获得操作事务的tx对象(建议使用)
Transaction tx2 = session.beginTransaction();
//----------------------------------------------
//1 获得要修改的对象
Customer c = session.get(Customer.class, 1l);
//2 修改
c.setCust_name("黑马程序员");
//3 执行update
session.update(c);
//----------------------------------------------
tx2.commit();//提交事务
session.close();//释放资源
sf.close();//释放资源
}
@Test
//session的删除
//删除id为1的customer对象
public void fun5(){
//1 创建,调用空参构造
Configuration conf = new Configuration().configure();
//2 根据配置信息,创建 SessionFactory对象
SessionFactory sf = conf.buildSessionFactory();
//3 获得session
Session session = sf.openSession();
//4 session获得操作事务的Transaction对象
//获得操作事务的tx对象
Transaction tx = session.getTransaction();
tx.begin();
//开启事务并获得操作事务的tx对象(建议使用)
Transaction tx2 = session.beginTransaction();
//----------------------------------------------
//1 获得要修改的对象
Customer c = session.get(Customer.class, 1l);
//2 调用delete删除对象
session.delete(c);
//----------------------------------------------
tx2.commit();//提交事务
session.close();//释放资源
sf.close();//释放资源
}
}
package utils;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtils {
private static SessionFactory factory;
static {
Configuration config = new Configuration().configure();
factory = config.buildSessionFactory();
}
//获得session 》》 获得全新session
public static Session openSession(){
Session session = factory.openSession();
return session;
}
//获得session 》》 获得与线程绑定的session
public static Session getCurrentSession(){
Session session = factory.getCurrentSession();
return session;
}
}