Spring @未在@ManagedBean中注入自动连线，导致NullPointerException
我正在使用Spring、JSF和Hibernate开发一个JavaEE应用程序，但是我遇到了一个与bean使用相关的错误 这是类Spring @未在@ManagedBean中注入自动连线，导致NullPointerException,spring,jsf,managed-bean,Spring,Jsf,Managed Bean,我正在使用Spring、JSF和Hibernate开发一个JavaEE应用程序，但是我遇到了一个与bean使用相关的错误 这是类命令： package dao; Generated 6 août 2014 13:11:43 by Hibernate Tools 3.4.0.CR1 import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.ManyToOne; impor
命令package dao;
Generated 6 août 2014 13:11:43 by Hibernate Tools 3.4.0.CR1
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
/**
* Commande generated by hbm2java
*/
@Entity
@Table(name = "commande", catalog = "gest")
public class Commande implements java.io.Serializable {
private long idCom;
private Categorie categorie;
private Produits produits;
private int quantite;
public Commande() {
}
public Commande(long idCom,int quantite){
this.idCom=idCom;
this.quantite=quantite;
}
public Commande(long idCom, Categorie categorie, Produits produits,
int quantite) {
this.idCom = idCom;
this.categorie = categorie;
this.produits = produits;
this.quantite = quantite;
}
@Id
@Column(name = "id_com", unique = true, nullable = false)
public long getIdCom() {
return this.idCom;
}
public void setIdCom(long idCom) {
this.idCom = idCom;
}
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "id_cat", nullable = false)
public Categorie getCategorie() {
return this.categorie;
}
public void setCategorie(Categorie categorie) {
this.categorie = categorie;
}
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "id_prod", nullable = false)
public Produits getProduits() {
return this.produits;
}
public void setProduits(Produits produits) {
this.produits = produits;
}
@Column(name = "quantite", nullable = false)
public int getQuantite() {
return this.quantite;
}
public void setQuantite(int quantite) {
this.quantite = quantite;
}
}
package service;
import java.util.List;
import dao.Commande;
public interface Commandser {
List<Commande> findall();
}
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j" %>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>List des commandes</title>
</head>
<body>
<f:view>
<h:form id="mainform">
<rich:scrollableDataTable id="commandetablt" binding="#{commandeBean.commandetablt}" value="#{commandeBean.commandeList}"
var="commande" width="360px" height="200px">
<rich:column id="idCom" width="60px">
<f:facet name="header"><h:outputText value="id"></h:outputText></f:facet>
<h:outputText value="#{commande.idCom}"></h:outputText>
</rich:column>
<rich:column id="quantite" width="60px">
<f:facet name="header"><h:outputText value="quantite"></h:outputText></f:facet>
<h:outputText value="#{commande.quantite}"></h:outputText>
</rich:column>
</rich:scrollableDataTable>
</h:form>
</f:view>
</body>
</html>
命令列表
你能帮我解决这个问题吗
@Autowired@Controller@Component@组件@自动连线@Component("commandeBean")
@SessionScoped
public class CommandeBean implements Serializable {
@Autowired
private transient Commandser commandeser;
@ManagedBean@ManagedProperty（#{'commandeser'}）@ManagedBean(name="commandeBean")
@SessionScoped
public class CommandeBean implements Serializable {
@ManagedProperty(#{"commandeser"})
private transient Commandser commandeser;
//Getter Setter for commandeser
août 06, 2014 1:01:04 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: "Servlet.service()" pour la servlet jsp a lancé une exception
java.lang.NullPointerException
at webf.CommandeBean.intit(CommandeBean.java:33)
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 com.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:117)
at com.sun.faces.vendor.WebContainerInjectionProvider.invokePostConstruct(WebContainerInjectionProvider.java:99)
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:223)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:105)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:71)
at org.apache.el.parser.AstValue.getValue(AstValue.java:160)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
at com.sun.faces.application.ValueBindingValueExpressionAdapter.getValue(ValueBindingValueExpressionAdapter.java:113)
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:1110)
at javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:212)
at javax.faces.webapp.UIComponentClassicTagBase.createChild(UIComponentClassicTagBase.java:506)
at javax.faces.webapp.UIComponentClassicTagBase.findComponent(UIComponentClassicTagBase.java:744)
at javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:1311)
at org.apache.jsp.CommandeList_jsp._jspx_meth_rich_005fscrollableDataTable_005f0(CommandeList_jsp.java:219)
at org.apache.jsp.CommandeList_jsp._jspx_meth_h_005fform_005f0(CommandeList_jsp.java:175)
at org.apache.jsp.CommandeList_jsp._jspx_meth_f_005fview_005f0(CommandeList_jsp.java:131)
at org.apache.jsp.CommandeList_jsp._jspService(CommandeList_jsp.java:93)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:546)
at com.sun.faces.application.view.JspViewHandlingStrategy.executePageToBuildView(JspViewHandlingStrategy.java:364)
at com.sun.faces.application.view.JspViewHandlingStrategy.buildView(JspViewHandlingStrategy.java:154)
at com.sun.faces.application.view.JspViewHandlingStrategy.renderView(JspViewHandlingStrategy.java:194)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
août 06, 2014 1:01:04 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/Finale] threw exception [javax.faces.FacesException: com.sun.faces.mgbean.ManagedBeanCreationException: Erreur lors de l’injection de ressources dans le bean géré «commandeBean»] with root cause
java.lang.NullPointerException
at webf.CommandeBean.intit(CommandeBean.java:33)
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 com.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:117)
at com.sun.faces.vendor.WebContainerInjectionProvider.invokePostConstruct(WebContainerInjectionProvider.java:99)
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:223)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:105)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:71)
at org.apache.el.parser.AstValue.getValue(AstValue.java:160)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
at com.sun.faces.application.ValueBindingValueExpressionAdapter.getValue(ValueBindingValueExpressionAdapter.java:113)
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:1110)
at javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:212)
at javax.faces.webapp.UIComponentClassicTagBase.createChild(UIComponentClassicTagBase.java:506)
at javax.faces.webapp.UIComponentClassicTagBase.findComponent(UIComponentClassicTagBase.java:744)
at javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:1311)
at org.apache.jsp.CommandeList_jsp._jspx_meth_rich_005fscrollableDataTable_005f0(CommandeList_jsp.java:219)
at org.apache.jsp.CommandeList_jsp._jspx_meth_h_005fform_005f0(CommandeList_jsp.java:175)
at org.apache.jsp.CommandeList_jsp._jspx_meth_f_005fview_005f0(CommandeList_jsp.java:131)
at org.apache.jsp.CommandeList_jsp._jspService(CommandeList_jsp.java:93)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:546)
at com.sun.faces.application.view.JspViewHandlingStrategy.executePageToBuildView(JspViewHandlingStrategy.java:364)
at com.sun.faces.application.view.JspViewHandlingStrategy.buildView(JspViewHandlingStrategy.java:154)
at com.sun.faces.application.view.JspViewHandlingStrategy.renderView(JspViewHandlingStrategy.java:194)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j" %>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>List des commandes</title>
</head>
<body>
<f:view>
<h:form id="mainform">
<rich:scrollableDataTable id="commandetablt" binding="#{commandeBean.commandetablt}" value="#{commandeBean.commandeList}"
var="commande" width="360px" height="200px">
<rich:column id="idCom" width="60px">
<f:facet name="header"><h:outputText value="id"></h:outputText></f:facet>
<h:outputText value="#{commande.idCom}"></h:outputText>
</rich:column>
<rich:column id="quantite" width="60px">
<f:facet name="header"><h:outputText value="quantite"></h:outputText></f:facet>
<h:outputText value="#{commande.quantite}"></h:outputText>
</rich:column>
</rich:scrollableDataTable>
</h:form>
</f:view>
</body>
</html>
@Component("commandeBean")
@SessionScoped
public class CommandeBean implements Serializable {
@Autowired
private transient Commandser commandeser;
@ManagedBean(name="commandeBean")
@SessionScoped
public class CommandeBean implements Serializable {
@ManagedProperty(#{"commandeser"})
private transient Commandser commandeser;
//Getter Setter for commandeser