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hibernate 把类输出成数据库表

时间:2023-02-19 11:03:30浏览次数:58  
标签:输出 hibernate name 数据库 id void import public


 

 

package com.hibernate.entity;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;

@Entity
public class Husband implements Serializable {


/**
*
*/
private static final long serialVersionUID = 2476364405175138004L;


private int id;

private String name;

private Wife wife;


@Id
@GeneratedValue
public int getId() {
return id;
}

public String getName() {
return name;
}

@OneToOne//只要加onetoone就可以了,不用写mapping啥的
public Wife getWife() {
return wife;
}

public void setId(int id) {
this.id = id;
}

public void setName(String name) {
this.name = name;
}

public void setWife(Wife wife) {
this.wife = wife;
}


}

 

 

package com.hibernate.entity;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class Wife implements Serializable {

/**
*
*/
private static final long serialVersionUID = 5270130768836331730L;


private int id;

private String name;


@Id
@GeneratedValue
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;
}


}

hibernate.cfg.xml

 


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

<!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration>

<session-factory>
<property name="dialect">
org.hibernate.dialect.MySQLDialect
</property>
<property name="connection.url">
jdbc:mysql://localhost/test
</property>
<property name="connection.username">root</property>
<property name="connection.password">root</property>
<property name="connection.driver_class">
com.mysql.jdbc.Driver
</property>

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



<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>

<!-- Disable the second-level cache -->
<property name="cache.provider_class">
org.hibernate.cache.NoCacheProvider
</property>

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

<property name="format_sql">true</property>
<mapping class="com.hibernate.entity.Husband" />
<mapping class="com.hibernate.entity.Wife" />
</session-factory>

</hibernate-configuration>

 

 

package com.hibernate.test;


import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

public class ORMappingTest {

private static SessionFactory sessionFactory;

@BeforeClass
public static void setUpBeforeClass() throws Exception {
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
}

@AfterClass
public static void tearDownAfterClass() throws Exception {
sessionFactory.close();
}

@Test
public void testSchemaExport() {
new SchemaExport(new AnnotationConfiguration().configure()).create(true, true);
}

}

 

跑了@Test后,就会在数据库中生成Husband表和Wife表

 

 


标签:输出,hibernate,name,数据库,id,void,import,public
From: https://blog.51cto.com/u_21817/6066621

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