Hibernate4.3.8Final环境搭建

女爷i 2022-08-06 17:20 64阅读 0赞

1.在eclipse上新建java project

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2.下载hibernate最新包4.3.8.Final.zip，解压文件

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3.导入lib目录下required中的包

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4.导入mysql的连接包

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5.编写hibernate配置文件：hibernate.cfg.xml到src目录下

<?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>
    
            
            <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
            <property name="connection.url">jdbc:mysql://localhost/test</property>
            <property name="connection.username">root</property>
            <property name="connection.password">123456</property>
    
            
             
    
            
            <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    
            
            
    
            
            <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
    
            
            <property name="show_sql">true</property>
    
            
            <property name="hbm2ddl.auto">update</property>
    
            <mapping resource="com/dr/domain/Student.hbm.xml"/>
    
        </session-factory>
    
    </hibernate-configuration>

</pre><pre name="code" class="html">6.编写实体类 Student

<pre name="code" class="java">package com.dr.domain;
    
    public class Student {
    	private int id;
    	private String name;
    	private int age;
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public int getAge() {
    		return age;
    	}
    	public void setAge(int age) {
    		this.age = age;
    	}
    	
    	
    }

</pre>7.编写实体类映射文件：Student.hbm.xml<p></p><pre>

8.在数据库中建相应的表:student

9.新建hibernate辅助类用来获取SessionFactory：HibernateUtil

<pre name="code" class="java">import org.hibernate.SessionFactory;
    import org.hibernate.boot.registry.StandardServiceRegistry;
    import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
    import org.hibernate.cfg.Configuration;
    
    public class HibernateUtil {
    	private static final SessionFactory sessionFactory = buildSessionFactory();
    
        private static SessionFactory buildSessionFactory() {
            try {
            	Configuration cfg = new Configuration().configure();
            	StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
            	                    .applySettings(cfg.getProperties()).build();
            	SessionFactory sessionFactory = cfg.buildSessionFactory(serviceRegistry);
            	return sessionFactory;
                
            }
            catch (Throwable ex) {
                // Make sure you log the exception, as it might be swallowed
                System.err.println("Initial SessionFactory creation failed." + ex);
                throw new ExceptionInInitializerError(ex);
            }
        }
    
        public static SessionFactory getSessionFactory() {
            return sessionFactory;
        }
    
    
    }

10.新建junit测试

<pre name="code" class="java">import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    import org.junit.Test;
    
    import com.dr.domain.Student;
    
    public class HibernateTest {
    
    	@Test
    	public void test() {
    		SessionFactory sf = HibernateUtil.getSessionFactory();
    		Session s = sf.openSession();
    		
    		s.beginTransaction();
    		Student student = new Student();
    		student.setId(2);
    		student.setName("dr02");
    		student.setAge(22);
    		
    		s.save(student);
    		s.getTransaction().commit();
    		
    		s.close();
    		sf.close();
    		
    		
    	}
    
    }

11.测试成功打印sql语句:

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