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hibernate search 条件

  • 作者: 亿陉
  • 来源: 51数据库
  • 2021-01-01

import java.util.*;


import java.sql.*;
import org.hibernate.*;
import org.hibernate.criterion.*;


public class Main {
 
  public static void main(String[] args) {
    HibernateUtil.setup("create table Supplier ( id int, name VARCHAR);");
    HibernateUtil.setup("create table Product ( id int, name VARCHAR, description VARCHAR, price double,supplierId int);");
   
    prepareData();
    Session session = HibernateUtil.currentSession();
   
        Criteria crit = session.createCriteria(Product.class);
        crit.add(Restrictions.ilike("name","1", MatchMode.END));
        List results = crit.list();
        displayProductsList(results);
   
   
        HibernateUtil.checkData("select * from Supplier");
        HibernateUtil.checkData("select * from Product");


  }
    public static void displayProductsList(List list){
        Iterator iter = list.iterator();
        if (!iter.hasNext()){
            System.out.println("No products to display.");
            return;
        }
        while (iter.hasNext()){
            Product product = (Product) iter.next();
            String msg = product.getSupplier().getName() + "\t";
            msg += product.getName() + "\t";
            msg += product.getPrice() + "\t";
            msg += product.getDescription();
            System.out.println(msg);
        }
    }


  private static void prepareData(){
        Session session = HibernateUtil.currentSession();


        Supplier supplier1 = new Supplier();
        supplier1.setName("Supplier Name 1");
        session.save(supplier1);
       
        Supplier supplier2 = new Supplier();
        supplier2.setName("Supplier Name 2");
        session.save(supplier2);       
       
        Product product1 = new Product("Product 1","Name for Product 1", 2.0);
        product1.setSupplier(supplier1);
        supplier1.getProducts().add(product1);
        session.save(product1);
       
        Product product12 = new Product("Product 2","Name for Product 2", 22.0);
        product12.setSupplier(supplier1);
        supplier1.getProducts().add(product12);       
        session.save(product12);
       
        Product product2 = new Product("Product 3", "Name for Product 3", 30.0);
        product2.setSupplier(supplier2);
        supplier2.getProducts().add(product2);
        session.save(product2);
       
        session.flush();
        HibernateUtil.closeSession();
  }
}



/////////////////////////////////////////////////////////////////////////


<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
" http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:data/tutorial</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>


        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>


        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>


        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>


        <!-- Mapping files -->
        <mapping resource="Product.hbm.xml"/>
        <mapping resource="Supplier.hbm.xml"/>
    </session-factory>
</hibernate-configuration>



/////////////////////////////////////////////////////////////////////////


public class Product
{
    private int id;
    private Supplier supplier;
   
    private String name;
    private String description;
    private double price;
   
    public Product()
    {
        super();
    }
   
    public Product(String name, String description, double price)
    {
        super();
        this.name = name;
        this.description = description;
        this.price = price;
    }
   
    public String getDescription()
    {
        return description;
    }
    public void setDescription(String description)
    {
        this.description = description;
    }
    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 Supplier getSupplier()
    {
        return supplier;
    }
    public void setSupplier(Supplier supplier)
    {
        this.supplier = supplier;
    }
   
    public double getPrice()
    {
        return price;
    }
    public void setPrice(double price)
    {
        this.price = price;
    }
}


 


/////////////////////////////////////////////////////////////////////////


<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping
   PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
" http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">


<hibernate-mapping>
   <class name="Supplier">
      <id name="id" type="int">
         <generator class="increment"/>
      </id>


      <property name="name" type="string"/>
      <bag name="products" inverse="true" cascade="all,delete-orphan">
        <key column="supplierId"/>
        <one-to-many class="Product"/>
      </bag>



   </class>
</hibernate-mapping>


 


/////////////////////////////////////////////////////////////////////////
import java.util.ArrayList;
import java.util.List;


public class Supplier
{
    private int id;
    private String name;
    private List products = new ArrayList();
   
    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 List getProducts()
    {
        return products;
    }
    public void setProducts(List products)
    {
        this.products = products;
    }
}


 

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