package?mtm_bfk;

import?java.util.Date;
import?java.util.Set;

import?javax.persistence.Entity;
import?javax.persistence.GeneratedValue;
import?javax.persistence.Id;
import?javax.persistence.JoinColumn;
import?javax.persistence.JoinTable;
import?javax.persistence.ManyToMany;
/*建實體類*/
/*學生實體類*/
@Entity
public?class?Students?{//多方
	private?int?sid;//學號
	private?String?sname;//姓名
	private?String?gender;//性別
	private?Date?birthday;//出生日期
	private?String?major;//專業(yè)
	private?Set<Teachers>?teacher;//學生持有教師的集合
	public?Students()?{//公有的默認的不帶參數的構造方法
		super();
	}
	public?Students(String?sname,?String?gender,?Date?birthday,
			String?major)?{//帶參數的構造方法
		super();
		this.sname=sname;
		this.gender?=?gender;
		this.birthday?=?birthday;
		this.major?=?major;
	}
	//私有屬性進行封裝
	@Id
	@GeneratedValue
	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?getMajor()?{
		return?major;
	}
	public?void?setMajor(String?major)?{
		this.major?=?major;
	}
	@ManyToMany
	@JoinTable(
		name="teachers_students",//中間表的名字
		joinColumns={@JoinColumn(name="sid")},//反轉控制字段的名字
		inverseJoinColumns={@JoinColumn(name="tid")}//本身的外鍵關聯(lián)關系的字段名稱
	)
	public?Set<Teachers>?getTeacher()?{
		return?teacher;
	}
	public?void?setTeacher(Set<Teachers>?teacher)?{
		this.teacher?=?teacher;
	}
}

教師類;

package?mtm_bfk;

import?java.util.Set;

import?javax.persistence.Column;
import?javax.persistence.Entity;
import?javax.persistence.GeneratedValue;
import?javax.persistence.Id;
import?javax.persistence.ManyToMany;

import?org.hibernate.annotations.GenericGenerator;

/*教師實體類*/
//被映射成一張表
@Entity//實體類、類注解
public?class?Teachers?{
	@Id//指定主鍵屬性
	@GeneratedValue(generator="tid")//指定主鍵生成器、生成器的名字
	@GenericGenerator(name="tid",strategy="assigned")//對應的@GenericGenerator、名字、生成策略(手工賦值)
	@Column(length=4)//指定字段長度的大小
	private?String?tid;//教師的編號
	private?String?tname;//教師的姓名
	@ManyToMany(mappedBy="teachers")
	private?Set<Students>?stus;//教師持有學生的集合
	public?Teachers()?{//不帶參數的公有的構造方法
		super();
	}
	public?Teachers(String?tid,?String?tname)?{//帶參數的構造方法
		super();
		this.tid?=?tid;
		this.tname?=?tname;
	}
	//字段封裝
	public?String?getTid()?{
		return?tid;
	}
	public?void?setTid(String?tid)?{
		this.tid?=?tid;
	}
	public?String?getTname()?{
		return?tname;
	}
	public?void?setTname(String?tname)?{
		this.tname?=?tname;
	}
}

控制臺:

五月?20,?2016?8:39:21?下午?org.hibernate.annotations.common.Version?<clinit>
INFO:?HCANN000001:?Hibernate?Commons?Annotations?{4.0.2.Final}
五月?20,?2016?8:39:21?下午?org.hibernate.Version?logVersion
INFO:?HHH000412:?Hibernate?Core?{4.2.21.Final}
五月?20,?2016?8:39:21?下午?org.hibernate.cfg.Environment?<clinit>
INFO:?HHH000206:?hibernate.properties?not?found
五月?20,?2016?8:39:21?下午?org.hibernate.cfg.Environment?buildBytecodeProvider
INFO:?HHH000021:?Bytecode?provider?name?:?javassist
五月?20,?2016?8:39:21?下午?org.hibernate.cfg.Configuration?configure
INFO:?HHH000043:?Configuring?from?resource:?/hibernate.cfg.xml
五月?20,?2016?8:39:21?下午?org.hibernate.cfg.Configuration?getConfigurationInputStream
INFO:?HHH000040:?Configuration?resource:?/hibernate.cfg.xml
五月?20,?2016?8:39:21?下午?org.hibernate.cfg.Configuration?doConfigure
INFO:?HHH000041:?Configured?SessionFactory:?null
五月?20,?2016?8:39:21?下午?org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl?configure
WARN:?HHH000402:?Using?Hibernate?built-in?connection?pool?(not?for?production?use!)
五月?20,?2016?8:39:21?下午?org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl?configure
INFO:?HHH000115:?Hibernate?connection?pool?size:?20
五月?20,?2016?8:39:21?下午?org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl?configure
INFO:?HHH000006:?Autocommit?mode:?false
五月?20,?2016?8:39:21?下午?org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl?configure
INFO:?HHH000401:?using?driver?[com.mysql.jdbc.Driver]?at?URL?[jdbc:mysql://localhost:3306/imooc_hibernate3?useUnicode=true&characterEncoding=utf8]
五月?20,?2016?8:39:21?下午?org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl?configure
INFO:?HHH000046:?Connection?properties:?{user=root,?password=****}
五月?20,?2016?8:39:21?下午?org.hibernate.dialect.Dialect?<init>
INFO:?HHH000400:?Using?dialect:?org.hibernate.dialect.MySQLDialect