一 JPA開發持久化Bean

二 配置資料來源

三 新建Ejb專案

四 指定JNDI資料來源

五 編寫entity bean

六 程式碼

1 目錄結構

2 Person.java

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

@Entity
public class Person {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String name;
	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;
	}
	

}
 

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
    http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0">
    
	<persistence-unit name="EjbLession6_jpa" transaction-type="JTA">
  		<jta-data-source>java:/MySqlDS</jta-data-source>
		<properties>
			<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" />
			<property name="hibernate.hbm2ddl.auto" value="update"/>
		</properties>
	</persistence-unit>
  
</persistence>
 

 啟動JBoss後, JPA自動與資料庫進行對映