org.hibernate.jdbc测试

 <class name="Person" table="T_JDBC_PERSON">
        <id name="id" column="ID">
            <generator class="increment" />
        </id>
        <property name="firstName" />
        <property name="lastName" />
    </class>

    <class name="Boat" table="T_JDBC_BOAT">
        <id name="id" column="ID">
            <generator class="increment" />
        </id>
        <property name="tag" />
        <many-to-one name="driver"/>
        <many-to-one name="boarder"/>
    </class>

 

这里many to one 表示Boat 是多，而 Person 是1，   同时数据库中    <class name="Boat" table="T_JDBC_BOAT">
建立 外键 <class name="Person" table="T_JDBC_PERSON">

many to one 字面意思 是 many对应表 而 one 对应属性值。左边对应表many     右边对应属性one

public class Boat {
 private Long id;
 private String tag;
 private Person driver;
 private Person boarder;

 public Boat() {
 }

 public Boat(String tag, Person driver, Person boarder) {
  this.tag = tag;
  this.driver = driver;
  this.boarder = boarder;
 }

 

 

  Session session = openSession();
  session.beginTransaction();  //事物开启

  session.doWork(
    new Work() {   //org.hibernate.jdbc.Work接口
     public void execute(Connection connection) throws SQLException {
      // in this current form, users must handle try/catches themselves for proper resource release
      Statement statement = null;
      try {
       statement = connection.createStatement();
       ResultSet resultSet = null;
       try {
        resultSet = statement.executeQuery( "select * from T_JDBC_PERSON" );
       }
       finally {
        releaseQuietly( resultSet );   //关闭数据集
       }
       try {
        resultSet = statement.executeQuery( "select * from T_JDBC_BOAT" );
       }
       finally {
        releaseQuietly( resultSet );
       }
      }
      finally {
       releaseQuietly( statement );   //关闭sql语句
      }
     }
    }
  );
  session.getTransaction().commit();  //事物提交
  session.close();

 

这个test测试了使用Hibernate 调用JDBC接口，批量更新时，这可以对数据性能方面进行优化。因为JDBC执行效率比HIbernate要高。

同时可以做一些复杂的SQL操作。