Hibernate注解方式单表操作

首先就是修改我们的hibernate.cfg.xml文件

<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
   <session-factory> 
    <property name="connection.username">username</property>
    <property name="connection.url">jdbc:db2://</property>
    <property name="connection.password">pswd</property>
    <property name="dialect">org.hibernate.dialect.DB2Dialect</property>
    <property name="connection.driver_class">com.ibm.db2.jcc.DB2Driver</property>
    <property name="show_sql">true</property>
  <property name="hibernate.hbm2ddl.auto">update</property>
    <mapping class="bean.ZqTest"/> 这点是与用配置文件映射有区别的
   </session-factory>
</hibernate-configuration>

 

由于是使用注解，所以就不再需要hbm.xml文件了

ZqTest.java文件如下

 

package bean;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="ZQTEST2")//name为表名
public class ZqTest {

 @Id
 @GeneratedValue(strategy=GenerationType.AUTO)
 @Column(name="ID")
 private int id;
 
 @Column(name="NAME")
 private String name;
 
 @Column(name="AGE")
 private int age;

 
 public  ZqTest()
 {
  
 }
 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;
 }

 public int getAge() {
  return age;
 }

 public void setAge(int age) {
  this.age = age;
 }
 
 
}
这就OK了，我们就可以测试了。