一、新建java項目,檢查項目的編碼,加入JDK1.7以上
二、引入jar包
2.1 引入required文件下面的所有jar包
* antlr-2.7.7.jar 實現hql到sql的轉換
* dom4j-1.6.1.jar xml解析
* geronimo-jta_1.1_spec-1.1.1.jar Geronimo是一個項目(整合優秀的組件和設計理念)
* hibernate-commons-annotations-5.0.1.Final.jar 註解
* hibernate-core-5.0.11.Final.jar 核心包
* hibernate-jpa-2.1-api-1.0.0.Final.jar hibenate對JPA的支持
* jandex-2.0.0.Final.jar 用來索引annotation
* javassist-3.18.1-GA.jar 字節碼操作
* jboss-logging-3.3.0.Final.jar 使用一個註解處理器來實現你的帶註釋的接口類
2.2 引入jpa文件夾下面的jar包
* hibernate-entitymanager-5.0.11.Final.jar hibernate對jpa的實現
2.3 引入jpa-metamodel-generator文件夾下面的jar包
* hibernate-jpamodelgen-5.0.11.Final.jar 關於模型自動生成的jar包
2.4 引入option/c3p0連接池的jar包
* c3p0-0.9.2.1.jar
* mchange-commons-java-0.2.3.4.jar c3p0新版本的輔助包
* hibernate-c3p0-5.0.11.Final.jar
2.5 引入option/ecache下面的slf4j-api.jar
SLF4J ,simple logging facade for java 簡單的日誌門面
它不是具體的日誌解決方案,它只是提供了統一的記錄日誌的接口 ,其他組件就按照其提供的接口實現即可
* slf4j-api.jar
* slf4j-log4j.jar
* log4j.jar
2.6 引入junit /mysql/oracle
* junit-4.11.jar
* hamcrest-core-1.3.jar
* mysql-connector-java-5.0.8-bin.jar
* ojdbc14.jar
三、數據庫建立表(create table t_student(st_id int,st_name varchar(20), st_age int);)
定義一個對象(對應於數據庫表的持久化對象)entity
四、hibernate的配置文件(hibernate.cfg.xml)
* 引用約束 核心包org.hibernate.hibenate-configuration-3.0.dtd
* 數據庫連接 project\etc\hibernate.properties
* 數據源配置 c3po
* 方言配置
* 上下文配置
<?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>
<!-- 連接數據庫四要素 數據庫驅動 url username password -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://127.0.0.1:3306/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">123456</property>
<!--用c3p0的數據源連接方式 -->
<property name="hibernate.connection.provider_class">org.hibernate.c3p0.internal.C3P0ConnectionProvider</property>
<!--數據庫方言 -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!--session上下文 -->
<property name="hibernate.current_session_context_class">thread</property>
<!--打印sql -->
<property name="hibernate.show_sql">true</property>
<!--打印的sql格式化 -->
<property name="hibernate.format_sql">true</property>
<!--加入映射文件路徑 -->
<mapping resource="com/xxx/hibernatestudy/sysmanage/entity/student.hbm.xml" />
</session-factory>
</hibernate-configuration>
五、數據庫表與持久化對象的映射關係配置文件(xxx.hbm.xml)
* 引入約束
* 持久化對象和數據庫表的對應關係
* 講映射文件引入到主配置文件hibernate.cfg.xml中
<?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>
<class name = "com.xxx.hibernatestudy.sysmanage.entity.Student" table = "T_STUDENT">
<id name = "stId" column = "ST_ID">
<generator class="native"></generator>
</id>
<property name="stName" column = "ST_NAME"></property>
<property name="stAge" column = "ST_AGE"></property>
</class>
</hibernate-mapping>
六、編寫測試代碼
package com.xxx.hibernatestudy.sysmanage.test;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.junit.Test;
import com.xxx.hibernatestudy.sysmanage.entity.Student;
public class HibernateDemoTest {
private Session getSession() {
//1:讀取hibenrate.cfg.xml配置文件
Configuration configer = new Configuration().configure();
//Configuration configer = new Configuration().configure("xxx.cfg.xml");
//2:創建sessionFactory
SessionFactory sessionFactory= configer.buildSessionFactory();
//3:獲取session
Session session = sessionFactory.getCurrentSession();
return session;
}
@Test
public void testAdd(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = new Student();
student.setStName("keshao");student.setStAge(18);
session.save(student);
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testPersist(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = new Student();
student.setStName("muniuliuma");student.setStAge(18);
session.persist(student); //jpa提供的接口
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testDel(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = new Student();
student.setStId(23);
//student.setStName("muniu");student.setStAge(18);
session.delete(student); //刪除方法是根據對象的id來操作的
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testUpdate(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = new Student();
student.setStId(22);
student.setStName("liuma");student.setStAge(18);
session.update(student);//修改方法是根據對象的id來操作的
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testSaveOrUpdate(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = new Student();
student.setStId(25);
student.setStName("muniu&liuma");student.setStAge(18);
session.saveOrUpdate(student);//如果對象沒有id,則爲增加操作,如果有id,則爲修改操作
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testGet(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = session.get(Student.class, 160);
if(student!=null)
System.out.println(student.getStName()+"---"+student.getStAge());
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
@Test
public void testLoad(){
Session session = getSession();
try{
//4:開啓事務
session.beginTransaction();
//session.getTransaction().begin();
//5:增刪改查操作
Student student = session.load(Student.class, 160);
if(student!=null)
System.out.println(student.getStName()+"---"+student.getStAge());
//6:事務提交
session.getTransaction().commit();
}catch(Exception e){
e.printStackTrace();
//7:事務回滾
session.getTransaction().rollback();
}
}
}