querytest3.java

来自「Hiberante程序高手秘籍的源代码」· Java 代码 · 共 50 行

package com.oreilly.hh;

import net.sf.hibernate.*;
import net.sf.hibernate.cfg.Configuration;
import net.sf.hibernate.expression.*;

import java.sql.Time;
import java.util.*;

/**
 * Retrieve data as objects
 */
public class QueryTest3 {

    /**
     * Look up and print all entities when invoked from the command line.
     */
    public static void main(String args[]) throws Exception {
        // Create a configuration based on the properties file we've put
        // in the standard place.
        Configuration config = new Configuration();

        // Tell it about the classes we want mapped, taking advantage of
        // the way we've named their mapping documents.
        config.addClass(Track.class).addClass(Artist.class);
        config.addClass(Album.class);

        // Get the session factory we can use for persistence
        SessionFactory sessionFactory = config.buildSessionFactory();

        // Ask for a session using the JDBC information we've configured
        Session session = sessionFactory.openSession();
        try {
            // Print every object in the database.
            List all = session.find("from java.lang.Object");

            for (ListIterator iter = all.listIterator() ;
                 iter.hasNext() ; ) {
                System.out.println(iter.next());
            }
        } finally {
            // No matter what, close the session
            session.close();
        }

        // Clean up after ourselves
        sessionFactory.close();
    }
}