ejb3.0的嵌入式开发
yangdd0 2008-04-24
我最近在学习EJB3.0,在利用ejb3.0进行嵌入开发的时候出现了异常
实体bean:person.java
packagecom.shen;
importjavax.persistence.Entity;
importjavax.persistence.GenerationType;
importjavax.persistence.GeneratedValue;
importjavax.persistence.Id;
importjavax.persistence.Column;
importjavax.persistence.Table;
importjava.io.Serializable;
@Entity
@Table(name="person")
publicclassPersonimplementsSerializable{
privateintid;
privateStringname;
privateintage;
privateStringaddress;
@Column(name="paddress")
publicStringgetAddress(){
returnaddress;
}
publicvoidsetAddress(Stringaddress){
this.address=address;
}
@Column(name="page")
publicintgetAge(){
returnage;
}
publicvoidsetAge(intage){
this.age=age;
}
@Id
@Column(name="pid")
@GeneratedValue(strategy=GenerationType.AUTO)
publicintgetId(){
returnid;
}
publicvoidsetId(intid){
this.id=id;
}
@Column(name="pname")
publicStringgetName(){
returnname;
}
publicvoidsetName(Stringname){
this.name=name;
}
}
会话bean:Access.java和AccessBeanRemote.java
packagecom.shen;
importjavax.ejb.Remote;
@Remote
publicinterfaceAccess{
publicintcreate(Personperson);
publicPersonfindById(intkey);
}
packagecom.shen;
importjavax.persistence.EntityManager;
importjavax.ejb.Stateless;
importcom.shen.Access;
importjavax.persistence.PersistenceContext;
public@StatelessclassAccessBeanRemoteimplementsAccess{
@PersistenceContext
privateEntityManagermanager;
//获得某个类的主键ID
publicintcreate(Personperson){
manager.persist(person);
returnperson.getId();
}
//获得某个类
publicPersonfindById(intkey){
Personperson=manager.find(Person.class,key);
returnperson;
}
}
persistence.xml
<?xmlversion="1.0"encoding="UTF-8"?>
<persistence>
<persistence-unitname="Person">
<jta-data-source>
java:/DefaultDS
</jta-data-source>
<propertiesname="hibernate.hbm2ddl.auto"value="create-drop">
</properties>
</persistence-unit>
</persistence>
我根据要求添加了jboss的嵌入式的开发包jboss-EJB-3.0_Embeddable_ALPHA_9中conf和lib下的文件
客户端代码:
/**
*
*/
packagecom.client;
importorg.jboss.ejb3.embedded.EJB3StandaloneBootstrap;
importcom.shen.*;
importjavax.naming.InitialContext;
/**
*@authorfjshenhq
*
*/
publicclassClient{
/**
*@paramargs
*/
publicstaticvoidmain(String[]args){
try{
//开发EJB3.0嵌入式
EJB3StandaloneBootstrap.boot(null);
EJB3StandaloneBootstrap.scanClasspath();
InitialContextict=newInitialContext();
Accessaccess=(Access)ict.lookup("AccessBeanRemote/remote");
Personperson=newPerson();
person.setName("shenhuoqin");
person.setAge(25);
person.setAddress("fujiansheng");
intkey=access.create(person);
Personp=access.findById(key);
System.out.println("=========="+p.getId());
System.out.println("=========="+p.getName());
System.out.println("=========="+p.getAge());
System.out.println("=========="+p.getAddress());
}catch(Exceptione){
e.printStackTrace();
}
}
}
我运行客户端代码的时候,就报出异常啊!
java.lang.RuntimeException:java.lang.RuntimeException:Cannotfindembedded-jboss-beans.xml
atorg.jboss.ejb3.embedded.EJB3StandaloneBootstrap.boot(EJB3StandaloneBootstrap.java:386)
atcom.client.Client.main(Client.java:22)
Causedby:java.lang.RuntimeException:Cannotfindembedded-jboss-beans.xml
atorg.jboss.ejb3.embedded.EJB3StandaloneBootstrap.boot(EJB3StandaloneBootstrap.java:372)
...1more
找不到embedded-jboss-beans.xml,但是我已经把这个文件加在里面啊,为什么它会说找不到?
