任何人都可以解释这个错误吗?我进入了这行代码。 列表empresas = session.createQuery(“来自Empresas”)。list(); of EmpresasDAOImp.java
jul 10, 2014 1:17:32 AM org.apache.catalina.core.StandardWrapperValve invoke
Grave: El Servlet.service() para el servlet [springapp] en el contexto con ruta [/springapp] lanzó la excepción [Request processing failed; nested exception is org.hibernate.HibernateException: createQuery is not valid without active transaction] con causa raíz
org.hibernate.HibernateException: createQuery is not valid without active transaction
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:348)
at com.sun.proxy.$Proxy19.createQuery(Unknown Source)
at com.altobri.conta.dao.EmpresasDAOImpl.listEmpresas(EmpresasDAOImpl.java:50)
at com.altobri.conta.service.EmpresasServiceImpl.listEmpresas(EmpresasServiceImpl.java:48)
at com.altobri.conta.controller.empresaListaController.list(empresaListaController.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Spring3MVC</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>springapp</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springapp</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
springapp-servlet.xml中
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.companyname.springapp.web" />
<context:component-scan base-package="com.springHibernate" />
<context:component-scan base-package="com.altobri.conta.*" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/empresas" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="annotatedClasses">
<list>
<value>com.altobri.conta.model.Empresas</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop
key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.current_session_context_class">thread</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory">
</bean>
</beans>
empresaListaController.java
package com.altobri.conta.controller;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.servlet.ModelAndView;
import com.altobri.conta.model.Empresas;
import com.altobri.conta.service.*;
@Controller
public class empresaListaController {
@Autowired
private EmpresasService empresasService;
protected final Logger logger = Logger.getLogger(getClass());
@RequestMapping("/empresaLista")
// @RequestMapping(method = RequestMethod.GET)
public String list(Model model) {
List<Empresas> empresas = empresasService.listEmpresas();
model.addAttribute("empresalist", empresas);
return "empresaLista";
}
}
EmpresasDAO
package com.altobri.conta.dao;
import com.altobri.conta.model.Empresas;
import java.util.List;
public interface EmpresasDAO {
void persistEmpresas(Empresas empresas);
Empresas findEmpresasById(int clave);
void updateEmpresas(Empresas empresas);
void deleteEmpresas(Empresas empresas);
public List<Empresas> listEmpresas();
}
EmpresasDAOImpl.java
package com.altobri.conta.dao;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.altobri.conta.model.Empresas;
@Repository("empresasDAO")
public class EmpresasDAOImpl implements EmpresasDAO {
@Autowired
public SessionFactory sessionFactory;
@Override
@Transactional
public void persistEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().persist(empresas);
}
@Override
@Transactional
public Empresas findEmpresasById(int clave) {
return (Empresas) sessionFactory.getCurrentSession().get(
Empresas.class, clave);
}
@Override
@Transactional
public void updateEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().update(empresas);
}
@Override
@Transactional
public void deleteEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().delete(empresas);
}
@Override
@Transactional
public List<Empresas> listEmpresas() {
Session session = sessionFactory.getCurrentSession();
List empresas = session.createQuery("from Empresas").list();
// TODO Auto-generated method stub
return empresas;
}
}
Empresas.java
package com.altobri.conta.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "EMPRESAS")
public class Empresas {
@Id
@Column(name = "CLAVE", nullable = false)
private int clave;
@Column(name = "NOMBRE", nullable = false)
private String nombre;
public Empresas() {
}
public int getClave() {
return clave;
}
public void setClave(int clave) {
this.clave = clave;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
}
EmpresasService.java
package com.altobri.conta.service;
import java.util.List;
import com.altobri.conta.model.Empresas;
public interface EmpresasService {
void persistEmpresas(Empresas empresas);
Empresas findEmpresasById(int clave);
void updateEmpresas(Empresas empresas);
void deleteEmpresas(Empresas empresas);
public List<Empresas> listEmpresas();
}
EmpresasServiceImpl.java
package com.altobri.conta.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.altobri.conta.dao.EmpresasDAO;
import com.altobri.conta.model.Empresas;
@Service("empresasService")
public class EmpresasServiceImpl implements EmpresasService{
@Autowired
EmpresasDAO empresasDAO;
@Override
@Transactional
public void persistEmpresas(Empresas empresas) {
empresasDAO.persistEmpresas(empresas);
}
@Override
@Transactional
public void updateEmpresas(Empresas empresas) {
empresasDAO.updateEmpresas(empresas);
}
@Override
@Transactional
public Empresas findEmpresasById(int clave) {
return empresasDAO.findEmpresasById(clave);
}
@Override
@Transactional
public void deleteEmpresas(Empresas empresas) {
empresasDAO.deleteEmpresas(empresas);
}
@Override
@Transactional
public List<Empresas> listEmpresas() {
// TODO Auto-generated method stub
return empresasDAO.listEmpresas();
}
}
答案 0 :(得分:1)
此
@Override
public List<Empresas> listEmpresas() {
// TODO Auto-generated method stub
return empresasDAO.listEmpresas();
}
未使用@Transactional
进行注释。在该方法堆栈中,您尝试调用一个要求您进入事务的方法。
@Override
public List<Empresas> listEmpresas() {
Session session = sessionFactory.getCurrentSession();
List empresas = session.createQuery("from Empresas").list(); // needs to be called within a Transaction
return empresas;
}
此外,您缺少交易注释配置
<tx:annotation-driven />
(不要忘记添加适当的tx
命名空间声明。)