Question

我正在使用hibernate 3.2.5和postgres9创建一个小程序。我有一个例外，

” 严重：无法找到数据源：STUD javax.naming.NoInitialContextException：需要在环境或系统属性中指定类名，或在applet参数中或在应用程序资源文件中指定类名：java.naming.factory.initial “

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请按以下方式查找我的代码，

Student.java

@Entity
public class Student implements Serializable {
private static final long serialVersionUID = 1L;

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name="Student_ID")
private Long id;

@Column(name="Name")
private String name;


@OneToMany(cascade=CascadeType.ALL)
@JoinColumn(name="Student_ID")    
private Set<Subjects> SubjectsSet;

public Set<Subjects> getSubjectsSet() {
    return SubjectsSet;
}

public void setSubjectsSet(Set<Subjects> SubjectsSet) {
    this.SubjectsSet = SubjectsSet;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}




public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

}

File Subjects.Java

@Entity
public class Subjects implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;

@Column(name="Subject")
private String name;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}



public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

}

我的persitence.xml

< persistence-unit name="HibOneToManyPU2" transaction-type="JTA" >
    < provider >org.hibernate.ejb.HibernatePersistence</ provider >  
    < jta-data-source >StudSub </ jta-data-source >  
    < class > model.Student </ class >  
    < class > model.Subjects </ class >  
    < exclude-unlisted-classes > false </ exclude-unlisted-classes >  
    < properties >  
      < property name="hibernate.hbm2ddl.auto" value="create-drop" />  
    </ properties >  
  </ persistence-unit >  
</ persistence >

请让我知道如何解决此问题。

在Hibernate 3.2.5中执行小程序时出现异常

0 个答案: