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org.hibernate.MappingException: Unknown entity: Students

import?java.util.Date;

//學生類
public?class?Students?{
	private?int?sid;
	private?String?sname;
	private?String?gender;
	private?Date?birthday;
	private?String?address;

	public?Students()?{

	}

	public?Students(int?sid,?String?sname,?String?gender,?Date?birthday,?String?address)?{
		//?super();
		this.sid?=?sid;
		this.sname?=?sname;
		this.gender?=?gender;
		this.birthday?=?birthday;
		this.address?=?address;
	}

	public?int?getSid()?{
		return?sid;
	}

	public?void?setSid(int?sid)?{
		this.sid?=?sid;
	}

	public?String?getSname()?{
		return?sname;
	}

	public?void?setSname(String?sname)?{
		this.sname?=?sname;
	}

	public?String?getGender()?{
		return?gender;
	}

	public?void?setGender(String?gender)?{
		this.gender?=?gender;
	}

	public?Date?getBirthday()?{
		return?birthday;
	}

	public?void?setBirthday(Date?birthday)?{
		this.birthday?=?birthday;
	}

	public?String?getAddress()?{
		return?address;
	}

	public?void?setAddress(String?address)?{
		this.address?=?address;
	}

	@Override
	public?String?toString()?{
		return?"Students?[sid="?+?sid?+?",?sname="?+?sname?+?",?gender="?+?gender?+?",?birthday="?+?birthday
				+?",?address="?+?address?+?"]";
	}

}

<?xml?version="1.0"?encoding="UTF-8"?>
<!DOCTYPE?hibernate-configuration?PUBLIC?"-//Hibernate/Hibernate?Configuration?DTD?3.0//EN"
?????????????????????????????????????????"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
?<session-factory?name="">
??<property?name="connection.username">root</property>
??<property?name="connection.password"/>
??<property?name="connection.driver_class">com.mysql.jdbc.Driver</property>
??<property?name="connection.url">jdbc:mysql:///hibernate?useUnicode=true&amp;characterEncoding=UTF-8</property>
??<property?name="dialect">org.hibernate.dialect.MySQLDialect</property>
??
??<property?name="show_sql">true</property>
??<property?name="format">true</property>
??<property?name="hbm2ddl.auto">create</property>
??
??<mapping?resource="Students.hbm.xml"/>
?</session-factory>
</hibernate-configuration>


import?java.util.Date;

import?org.hibernate.Session;
import?org.hibernate.SessionFactory;
import?org.hibernate.Transaction;
import?org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import?org.hibernate.cfg.Configuration;
import?org.hibernate.service.ServiceRegistry;
import?org.junit.After;
import?org.junit.Before;
import?org.junit.Test;

//測試類
public?class?StudentsTest?{

	private?SessionFactory?sessionFactory;
	private?Session?session;
	private?Transaction?transaction;

	@Before
	public?void?init()?{

		Configuration?config?=?new?Configuration().configure();
		//?創(chuàng)建服務注冊對象
		ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().applySettings(config.getProperties())
				.build();
		sessionFactory?=?config.buildSessionFactory(serviceRegistry);
		session?=?sessionFactory.openSession();
		transaction?=?session.beginTransaction();
	}

	@After
	public?void?destory()?{

		transaction.commit();
		session.close();
		sessionFactory.close();
	}

	@Test
	public?void?testSaveStudents()?{

		Students?s?=?new?Students(1,?"張三",?"男",?new?Date(),?"武漢");
		session.save(s);
	}
}

<?xml?version="1.0"?>
<!DOCTYPE?hibernate-mapping?PUBLIC?"-//Hibernate/Hibernate?Mapping?DTD?3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--?Generated?2016-6-23?12:01:49?by?Hibernate?Tools?3.5.0.Final?-->
<hibernate-mapping>
????<class?name="Students"?table="STUDENTS">
????????<id?name="sid"?type="int">
????????????<column?name="SID"?/>
????????????<generator?class="assigned"?/>
????????</id>
????????<property?name="sname"?type="java.lang.String">
????????????<column?name="SNAME"?/>
????????</property>
????????<property?name="gender"?type="java.lang.String">
????????????<column?name="GENDER"?/>
????????</property>
????????<property?name="birthday"?type="java.util.Date">
????????????<column?name="BIRTHDAY"?/>
????????</property>
????????<property?name="address"?type="java.lang.String">
????????????<column?name="ADDRESS"?/>
????????</property>
????</class>
</hibernate-mapping>


正在回答

4 回答

感謝樓主,我的問題也解決了,困擾了我老久了

0 回復 有任何疑惑可以回復我~

非常感謝樓主,問題解決了

0 回復 有任何疑惑可以回復我~

已在hibernate的官網(wǎng)文檔找到答案了,可直接使用

ServiceRegistry?serviceRegistry?=?new?StandardServiceRegistryBuilder().configure().build();

問題解決

4 回復 有任何疑惑可以回復我~
#1

bytwohitsnow

這樣子。
2016-06-23 回復 有任何疑惑可以回復我~
#2

bytwohitsnow

果然好使!
2016-06-23 回復 有任何疑惑可以回復我~
#3

bytwohitsnow

請問hibernate的官網(wǎng)文檔在哪兒找?上hibernate.org找一圈沒找見。
2016-06-23 回復 有任何疑惑可以回復我~
#4

3us1c 提問者 回復 bytwohitsnow

http://docs.jboss.org/hibernate/orm/5.2/quickstart/html_single/
2016-06-23 回復 有任何疑惑可以回復我~
查看1條回復

將圈中語句

http://img1.sycdn.imooc.com//576b9b560001a4c207840409.jpg

改成

http://img1.sycdn.imooc.com//576b9b6600011db308020036.jpg

原因不知道。


0 回復 有任何疑惑可以回復我~
#1

3us1c 提問者

hibernate4.3以后就不支持 ServiceRegistryBuilder了 …… 我用的hibernate5
2016-06-23 回復 有任何疑惑可以回復我~
#2

1217236338 回復 3us1c 提問者

請問樓主你的這個問題解決了嗎??,我也出現(xiàn)了這個問題,網(wǎng)上找了好多資料,也沒找到我想要的
2016-06-28 回復 有任何疑惑可以回復我~
#3

1217236338 回復 3us1c 提問者

非常感謝,樓主,我把你的那句代碼和我的那句代碼換了過后,就可以了,謝謝
2016-06-28 回復 有任何疑惑可以回復我~
#4

3us1c 提問者

回復 1217236338: :)
2016-06-28 回復 有任何疑惑可以回復我~
查看1條回復

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