Question

我一直试图用hibernate自动创建一个表。尝试了为同一个问题提供的所有解决方案。请看看并指出错误。我在MySQL 5.6版本中使用它。

public class Tester
{
    public static void main(String[] args)
    {
        SessionFactory factory = new Configuration().configure("com/hibernate.hbm.xml").buildSessionFactory();
        System.out.println(factory.toString() + " - DONE");
    }
}

产品类是：

public class Product
{
    private String product;

    private String productName;

    public String getProduct()
    {
        return product;
    }

    public void setProduct(String product)
    {
        this.product = product;
    }

    public String getProductName()
    {
        return productName;
    }

    public void setProductName(String productName)
    {
        this.productName = productName;
    }
}

我的hbm文件如下所示：

<?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 package="com">
    <class name="Product" table="product_table">
        <id name="product" column="product_id" type="java.lang.String" length="20" >
            <generator class="assigned" />
        </id>
        <property name="productName" column="product_name" type="java.lang.String" length="50" not-null="true" />
    </class>
</hibernate-mapping>

下面给出了hibernate.cfg.xml -

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration SYSTEM 
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/caching_hibernate</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        <property name="hibernate.show_sql">true</property>
        <property name="cache.providerclass">org.hibernate.NoCacheProvider</property>

        <mapping resource="com/product.hbm.xml" />
    </session-factory>
</hibernate-configuration>

程序显示没有异常并且正常运行..提前谢谢

Hibernate不会创建表

0 个答案: