沉寂的蜗牛
2016-04-03 18:15
hibernate.cfg.xml:
<?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>
<property name="connection.username">root</property>
<property name="connection.password">root</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property
name="connection.url">jdbc:mysql:///hibernate?userUnicode=true&characterEncoding=UTF-8</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<property name="hbm2ddl.auto">create</property>
<mapping resource="Students.hbm.xml"/>
</session-factory>
</hibernate-configuration>
Students.hbm.xml:
<?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 2016-4-3 15:32:14 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>
Students.java
import java.util.Date;
//学生类
public class Students {
// 1.共有的类
// 2.提供共有的不带参数的默认的构造方法
// 3.属性私有
// 4.属性getter/setter方法
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 + "]";
}
}
StudentsTest.java
import java.util.Date;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class StudentsTest {
private SessionFactory sessionFactory;
private Session session;
private Transaction transaction;
@Before
public void init(){
//创建配置对象
Configuration config=new Configuration().configure();
//创建服务注册对象
ServiceRegistry serviceRegistry=new
ServiceRegistryBuilder().applySettings(config.getProperties()).buildServiceRegistry();
//创建会话工厂对象
sessionFactory=config.buildSessionFactory(serviceRegistry);
//会话对象
session=sessionFactory.openSession();
//开启事物
transaction=session.beginTransaction();
}
@After
public void destory(){
transaction.commit();
session.close();
sessionFactory.close();
}
@Test
public void testSaveStudents(){
Students s=new Students(1,"张三丰","男",new Date(),"武当山");
session.save(s);
}
}
你是自动生成的hbm.xml吗
<mapping resource="Students.hbm.xml"/>
你如果没把Students.hbm.xml放在src下就必须要加上他的跟路径eg:
<mapping resource="com/entity/Student.hbm.xml"/>
我的就是放在com.entity的,找不到是因为你映射路径对不上!
是的,可能是什么问题,会不会是Hibernatetools安装出问题了?
Hibernate初探之单表映射
74810 学习 · 793 问题
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