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Hbernate一对一单向关系(Annotation)

 
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package com.bjsxt.hibernate.model;

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

@Entity
public class Husband {
private int id;
private String name;
private Wife wife;
@Id
@GeneratedValue
public int getId() {
return id;
}

public String getName() {
return name;
}
@OneToOne
@JoinColumn(name="wifeId")
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.bjsxt.hibernate.model;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;


public class Student {

private int id;
private int age;
private String name;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}

public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}


<?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">
<hibernate-configuration>
    <session-factory>
        <!-- 设置数据库连接 -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/hibernate</property>
        <property name="connection.username">root</property>
        <property name="connection.password">root</property>
        <!-- 在真正的项目开中一般不用hinernate自带的连接池 -->
        <!-- <property name="connection.pool_size">1</property> -->
        <!-- SQL 方言 -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</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>
        <!-- 是否需要打印出来sql语句 -->
        <property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>
       
        <!-- <mapping resource="com/bjsxt/hibernate/model/Student.hbm.xml"/> -->
<mapping class="com.bjsxt.hibernate.model.Wife"/>
        <mapping class="com.bjsxt.hibernate.model.Husband"/>
    </session-factory>
</hibernate-configuration>

生成表:
new SchemaExport(new AnnotationConfiguration().configure()).create(false, true);
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