Spring org.hibernate.hql.internal.ast.QuerySyntaxException:<；类名>；未映射

我在一个maven项目中使用Hibernate4.3来连接oracle数据库

我不知道为什么我会犯这个错误。类名是Employee。这不是映射。有人能帮我吗

模型类：

package com.model;
import java.io.Serializable;
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 = "EMP_TBL")
public class Employee implements Serializable {

    private static final long serialVersionUID = -3465813074586302847L;

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int id;

    @Column
    private String name;

    @Column
    private String email;

    @Column
    private String address;

    @Column
    private String telephone;

    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 String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getTelephone() {
        return telephone;
    }

    public void setTelephone(String telephone) {
        this.telephone = telephone;
    }

}

DAO实现：

package com.dao;

import java.util.List;

import javax.persistence.Column;

import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import com.model.Employee;

@Repository
public class EmployeeDAOImpl implements EmployeeDAO {

    @Autowired
    private SessionFactory sessionFactory;

    public void addEmployee(Employee employee) {
        sessionFactory.getCurrentSession().saveOrUpdate(employee);

    }

    @SuppressWarnings("unchecked")
    public List<Employee> getAllEmployees() {

        return sessionFactory.getCurrentSession().createQuery("from Employee").list();
    }

    @Override
    public void deleteEmployee(Integer employeeId) {
        Employee employee = (Employee) sessionFactory.getCurrentSession().load(
                Employee.class, employeeId);
        if (null != employee) {
            this.sessionFactory.getCurrentSession().delete(employee);
        }

    }

    public Employee getEmployee(int empid) {
        return (Employee) sessionFactory.getCurrentSession().get(
                Employee.class, empid);
    }

    @Override
    public Employee updateEmployee(Employee employee) {
        sessionFactory.getCurrentSession().update(employee);
        return employee;
    }

}

package com.dao；
导入java.util.List；
导入javax.persistence.Column；
导入org.hibernate.SessionFactory；
导入org.springframework.beans.factory.annotation.Autowired；
导入org.springframework.stereotype.Repository；
导入com.model.Employee；
@存储库
公共类EmployeeDAOImpl实现EmployeeDAO{
@自动连线
私人会话工厂会话工厂；
公共无效添加员工（员工）{
sessionFactory.getCurrentSession（）.saveOrUpdate（员工）；
}
@抑制警告（“未选中”）
公共列表getAllEmployees（）{
返回sessionFactory.getCurrentSession（）.createQuery（“来自员工”）.list（）；
}
@凌驾
public void deleteEmployee（整数employeeId）{
Employee=（Employee）sessionFactory.getCurrentSession（）.load(
Employee.class，employeeId）；
如果（空！=员工）{
this.sessionFactory.getCurrentSession（）.delete（employee）；
}
}
公共雇员getEmployee（int-empid）{
return（Employee）sessionFactory.getCurrentSession（）.get(
Employee.class，empid）；
}
@凌驾
公共雇员更新雇员（雇员）{
sessionFactory.getCurrentSession（）.update（员工）；
返回员工；
}
}

我得到的错误是

    Oct 29, 2018 5:05:27 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [spring] in context with path [/SpringMVCHibernateCRUD] threw exception [Request processing failed; nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException: Employee is not mapped [select e.id,e.name,e.email,e.address,e.telephone from Employee e]] with root cause
org.hibernate.hql.internal.ast.QuerySyntaxException: Employee is not mapped
    at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
    at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
    at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
    at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:332)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3678)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3567)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:708)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:564)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:301)
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:249)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:131)
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:93)
    at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:167)
    at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
    at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
    at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1800)
    at com.dao.EmployeeDAOImpl.getAllEmployees(EmployeeDAOImpl.java:27)
    at com.service.EmployeeServiceImpl.getAllEmployees(EmployeeServiceImpl.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
    at com.sun.proxy.$Proxy18.getAllEmployees(Unknown Source)
    at com.controller.EmployeeController.listEmployee(EmployeeController.java:34)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

2018年10月29日下午5:05:27 org.apache.catalina.core.StandardWrapper
严重：路径为[/SpringMVCHibernateCRUD]的上下文中Servlet[spring]的Servlet.service（）引发异常[请求处理失败；嵌套异常为org.hibernate.hql.internal.ast.QuerySyntaxException:员工未映射[选择e.id、e.name、e.email、e.address、e.phone from Employee e]]根本原因
org.hibernate.hql.internal.ast.QuerySyntaxException:未映射员工
位于org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister（SessionFactoryHelper.java:189）
位于org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement（FromElementFactory.java:109）
位于org.hibernate.hql.internal.ast.tree.FromClause.addFromElement（FromClause.java:95）
位于org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement（HqlSqlWalker.java:332）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement（HqlSqlBaseWalker.java:3678）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList（HqlSqlBaseWalker.java:3567）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause（HqlSqlBaseWalker.java:708）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query（HqlSqlBaseWalker.java:564）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement（HqlSqlBaseWalker.java:301）
位于org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement（HqlSqlBaseWalker.java:249）
位于org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze（QueryTranslatorImpl.java:278）
位于org.hibernate.hql.internal.ast.QueryTranslatorImpl.docomFile（QueryTranslatorImpl.java:206）
位于org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile（QueryTranslatorImpl.java:158）
位于org.hibernate.engine.query.spi.HQLQueryPlan.（HQLQueryPlan.java:131）
在org.hibernate.engine.query.spi.HQLQueryPlan.（HQLQueryPlan.java:93）
位于org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan（QueryPlanCache.java:167）
位于org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan（AbstractSessionImpl.java:301）
位于org.hibernate.internal.AbstractSessionImpl.createQuery（AbstractSessionImpl.java:236）
位于org.hibernate.internal.SessionImpl.createQuery（SessionImpl.java:1800）
在com.dao.EmployeeDAOImpl.getAllEmployees上（EmployeeDAOImpl.java:27）
在com.service.EmployeeServiceImpl.getAllEmployees上（EmployeeServiceImpl.java:28）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection（AopUtils.java:317）
位于org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint（ReflectiveMethodInvocation.java:190）
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:157）上
位于org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation（TransactionInterceptor.java:99）
位于org.springframework.transaction.interceptor.TransactionSpectSupport.invokeWithinTransaction（TransactionSpectSupport.java:281）
位于org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:96）
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:179）上
位于org.springframework.aop.framework.JdkDynamicAopProxy.invoke（JdkDynamicAopProxy.java:207）
位于com.sun.proxy.$Proxy18.getAllEmployees（未知来源）
位于com.controller.EmployeeController.listEmployee（EmployeeController.java:34）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke处（未知源）
位于java.lang.reflect.Method.invoke（未知源）
位于org.springframework.web.method.support.InvocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:221）
位于org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:137）
在org.springframework.web.servlet.mvc.method.annotation.ServletinVaccableHandlerMethod.invokeAndHand