搭建简单的Habernate环境(一)

一、开篇

　　下载Habernate所需要的jar包和mysql驱动。

　　

二、建立java项目并且导入所需要的包

　　

三、建立实体类和配置映射文件

　　user实体类

package testPackage;

public class user {
  public String id;
  public String name;
  public String getId() {
    return id;
  }
  public void setId(String id) {
    this.id = id;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
}

　　user配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
  <class name="testPackage.user" table="user">
    <id name="id">
      <generator class="uuid"></generator>
    </id>
    <property name="name"/>
  </class>
</hibernate-mapping>

　　habernate.cfg.cml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>
      <!-- 数据库连接设置 -->
      <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
      <property name="hibernate.connection.url">jdbc:mysql://120.78.155.**:3306/jwttoken</property>
          <property name="hibernate.connection.username">root</property>
            <property name="connection.password">root</property>
            <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
            <property name="hibernate.hbm2ddl.auto">update</property>
            <property name="hibernate.show_sql">true</property>
            <property name="hibernate.format_sql">true</property>
            <mapping resource="testPackage/user.xml"/>
  </session-factory>
</hibernate-configuration>

四、测试

package testPackage;



import java.util.UUID;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class demo {

  public static void main(String[] args)
  {
    user d=new user();
    d.id=UUID.randomUUID().toString().replaceAll("-", "");
    d.name="dirk";
    Configuration configure = new Configuration().configure();

    SessionFactory factory = configure.buildSessionFactory();
    Session session = factory.openSession();
    Transaction transaction= session.beginTransaction();
    session.save(d);
    transaction.commit();
    System.out.print("ok");

  }
}

 五、结果

　　

六、遇到的问题