一、首先在maven中添加jar包依賴php
<dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>5.2.6.Final</version> </dependency>
二、建立resources文件夾並設置爲資源文件夾mysql
三、在resources文件夾中建立hibernate配置文件,兩種方法sql
(1)、直接建立hibernate.cfg.xml數據庫
<?xml version='1.0' encoding='utf-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="current_session_context_class">thread</property> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql://localhost/dss</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.connection.password">123</property> <!-- 能夠將向數據庫發送的SQL語句顯示出來 --> <property name="hibernate.show_sql">true</property> <!-- 格式化SQL語句 --> <property name="hibernate.format_sql">true</property> <!-- hibernate的方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> <!-- 配置hibernate的映射文件所在的位置 --> <mapping resource="Test.hbm.xml" /> </session-factory> </hibernate-configuration>
(2)在IDEA選項中添加session
四、建立數據庫映射文件app
Test.hbm.xmlmaven
<?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="com.text"> <!-- name:即實體類的全名 table:映射到數據庫裏面的那個表的名稱 catalog:數據庫的名稱 --> <class name="Test" table="test" catalog="dss"> <!-- class下必需要有一個id的子元素 --> <!-- id是用於描述主鍵的 --> <id name="id" column="id"> <!-- 主鍵生成策略 --> <generator class="native"></generator> </id> <!-- 使用property來描述屬性與字段的對應關係 若是length忽略不寫,且你的表是自動建立這種方案,那麼length的默認長度是255 --> <property name="name" column="name" length="255"></property> <property name="uid" column="uid" length="255"></property> </class> </hibernate-mapping>
五、建立hibernate 工具類工具
import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; public final class HibernateUtil { private static SessionFactory sessionFactory; private HibernateUtil(){ } static{ Configuration cfg = new Configuration(); cfg.configure(); sessionFactory = cfg.buildSessionFactory(); } public static SessionFactory getSessionFactory(){ return sessionFactory; } public static Session getSession(){ return sessionFactory.openSession(); } }
六、測試類測試
@RequestMapping(value = "/hibernate",method = RequestMethod.POST) @ResponseBody public List<Test> sayHelloll(String name){ Session s = HibernateUtil.getSession(); //這裏直接調用HibernateUtil工具類中的getSession()方法得到Session Transaction tx = s.beginTransaction(); //開啓事務 Query query = s.createQuery("from Test"); List<Test> test = query.list(); return test; }