从表中检索记录时，Hibernate异常: org. hibernate.hql.internal.ast.QuerySyntaxException

Question

在Hibernate 4.0中，我想使用session.createQuery("from dbemployee").list();从表中检索记录
但Hibernate显示异常:

Hibernate Exception: org.hibernate.hql.internal.ast.QuerySyntaxException: dbemployee is not mapped [from dbemployee]**

我的POJO类(class)是Employee

public class Employee implements Serializable {

private static final long serialVersionUID = 1L;
private String empId;
private String empName;
private long empSalary;

public Employee() {
    super();
}

// getters and setters

}

我在Oracle 11g中的表dbemployee是:

dbemployee:
EMPID varchar2(20)
EMPNAME varchar2(20)
EMPSALARY number(11);

Employee.hbm.xml是

<hibernate-mapping>
  <class name="beanclass.Employee" table="dbemployee">

  <id name="empId" type="java.lang.String" column="EMPID">
  <generator class="assigned"></generator>
   </id>
   <property name="empName"  column="EMPNAME"  type="java.lang.String"/>
   <property  name="empSalary" column="EMPSALARY" type="java.lang.Long" />
  </class>

  </hibernate-mapping>

请帮助解决此异常。
提前致谢

Answer 1

您的查询应为:

 session.createQuery("from Employee").list();

您必须在查询中使用类名，而不是表名。