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我对这个错误有疑问。我正在做关于 jsf、hibernate、spring 和 maven 的教程。

这是教程的链接。 http://www.onlinetechvision.com/?p=566

这是我收到的错误消息。

Nov 30, 2012 2:16:56 PM javax.faces.event.MethodExpressionActionListener processAction
SEVERE: Received 'javax.el.MethodNotFoundException' when invoking action listener '#{userMB.deleteUser(user.id)}' for component 'deleteUser'
Nov 30, 2012 2:16:56 PM javax.faces.event.MethodExpressionActionListener processAction
SEVERE: javax.el.MethodNotFoundException: Method not found: com.otv.managed.bean.UserManagedBean@50e0de15.deleteUser(java.lang.Integer)
    at org.apache.el.util.ReflectionUtil.getMethod(ReflectionUtil.java:245)
    at org.apache.el.parser.AstValue.invoke(AstValue.java:271)
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
    at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)
    at javax.faces.event.ActionEvent.processListener(ActionEvent.java:84)
    at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:773)
    at javax.faces.component.UICommand.broadcast(UICommand.java:296)
    at javax.faces.component.UIData.broadcast(UIData.java:911)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1255)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:334)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    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:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)

Nov 30, 2012 2:16:56 PM com.sun.faces.context.AjaxExceptionHandlerImpl log
SEVERE: JSF1073: javax.faces.event.AbortProcessingException caught during processing of INVOKE_APPLICATION 5 : UIComponent-ClientId=j_idt5:users:0, Message=Method not found: com.otv.managed.bean.UserManagedBean@50e0de15.deleteUser(java.lang.Integer)
Nov 30, 2012 2:16:56 PM com.sun.faces.context.AjaxExceptionHandlerImpl log
SEVERE: Method not found: com.otv.managed.bean.UserManagedBean@50e0de15.deleteUser(java.lang.Integer)
javax.faces.event.AbortProcessingException: Method not found: com.otv.managed.bean.UserManagedBean@50e0de15.deleteUser(java.lang.Integer)
    at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:178)
    at javax.faces.event.ActionEvent.processListener(ActionEvent.java:84)
    at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:773)
    at javax.faces.component.UICommand.broadcast(UICommand.java:296)
    at javax.faces.component.UIData.broadcast(UIData.java:911)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1255)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:334)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    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:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)
Caused by: javax.el.MethodNotFoundException: Method not found: com.otv.managed.bean.UserManagedBean@50e0de15.deleteUser(java.lang.Integer)
    at org.apache.el.util.ReflectionUtil.getMethod(ReflectionUtil.java:245)
    at org.apache.el.parser.AstValue.invoke(AstValue.java:271)
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
    at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)
    ... 26 more

这是我的“UserManbedBean.java”文件。

package com.otv.managed.bean;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.RequestScoped;

import org.springframework.dao.DataAccessException;

import com.otv.model.User;
import com.otv.user.service.IUserService;

/**
 * 
 * User Managed Bean
 * 
 * @author onlinetechvision.com
 * @since 25 Mar 2012
 * @version 1.0.0
 *
 */
@ManagedBean(name="userMB")
@RequestScoped
public class UserManagedBean implements Serializable {

    private static final long serialVersionUID = 1L;
    private static final String SUCCESS = "success";
    private static final String ERROR   = "error";

    //Spring User Service is injected...
    @ManagedProperty(value="#{UserService}")
    IUserService userService;

    List<User> userList;

    private int id;
    private String name;
    private String surname;

    /**
     * Add User
     * 
     * @return String - Response Message
     */
    public String addUser() {
        try {
            User user = new User();
            user.setId(getId());
            user.setName(getName());
            user.setSurname(getSurname());
            getUserService().addUser(user);
            return SUCCESS;
        } catch (DataAccessException e) {
            e.printStackTrace();
        }   

        return ERROR;
    }

    /**
     * delete User
     * @param id
     */
    public void deleteUser(int id) {
        User user =(User)userService.getUserById(id);
        getUserService().deleteUser(user);
    }


    public String deleteAction(User user){
        userList.remove(user);
        return null;
    }
    /**
     * Update User
     * @param id
     */
    public void updateUser(int id){
        User user = userService.getUserById(id);
        user.setName(getName());
        user.setSurname(getSurname());
        getUserService().updateUser(user);
    }

    /**
     * Reset Fields
     * 
     */
    public void reset() {
        this.setId(0);
        this.setName("");
        this.setSurname("");
    }

    /**
     * Get User List
     * 
     * @return List - User List
     */
    public List<User> getUserList() {
        userList = new ArrayList<User>();
        userList.addAll(getUserService().getUsers());
        return userList;
    }

    /**
     * Get User Service
     * 
     * @return IUserService - User Service
     */
    public IUserService getUserService() {
        return userService;
    }

    /**
     * Set User Service
     * 
     * @param IUserService - User Service
     */
    public void setUserService(IUserService userService) {
        this.userService = userService;
    }

    /**
     * Set User List
     * 
     * @param List - User List
     */
    public void setUserList(List<User> userList) {
        this.userList = userList;
    }

    /**
     * Get User Id
     * 
     * @return int - User Id
     */
    public int getId() {
        return id;
    }

    /**
     * Set User Id
     * 
     * @param int - User Id
     */
    public void setId(int id) {
        this.id = id;
    }

    /**
     * Get User Name
     * 
     * @return String - User Name
     */
    public String getName() {
        return name;
    }

    /**
     * Set User Name
     * 
     * @param String - User Name
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Get User Surname
     * 
     * @return String - User Surname
     */
    public String getSurname() {
        return surname;
    }

    /**
     * Set User Surname
     * 
     * @param String - User Surname
     */
    public void setSurname(String surname) {
        this.surname = surname;
    }

}

这是我的“success.xhtml”文件

<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:p="http://primefaces.org/ui">
<h:head>
    <title>Welcome to OTV_JSF_Spring_Hibernate_Project</title>
</h:head>
<h:body>
    <h:form>
        <h:outputText value="USERs : "></h:outputText>
        <p:dataTable id="users" var="user" value="#{userMB.userList}" style="width: 10%">
            <p:column>
                <f:facet name="header">
                    <h:outputText value="ID" />
                </f:facet>
                <h:outputText value="#{user.id}" />
            </p:column>
            <p:column>
                <f:facet name="header">
                    <h:outputText value="Name" />
                </f:facet>
                <h:outputText value="#{user.name}" />
            </p:column>
            <p:column>
                <f:facet name="header">
                    <h:outputText value="Surname" />
                </f:facet>
                <h:outputText value="#{user.surname}" />
            </p:column>

            <p:column>
                <f:facet name="header">
                    <h:outputText value="Action" />
                </f:facet>
                <p:commandButton id="deleteUser" value="Delete" actionListener="#{userMB.deleteUser(user.id)}" action="#{userMB.deleteAction(user)}" /> 
            </p:column>


            <p:column>
                <f:facet name="header">
                    <h:outputText value="Action" />
                </f:facet>
                <p:commandButton id="updateUser" value="update" actionListener="#{userMB.updateUser(user.id)}" />   
            </p:column>

        </p:dataTable>
    </h:form>
</h:body>

</html>

这是我的 UserService.java 文件

package com.otv.user.service;

import java.util.List;

import org.springframework.transaction.annotation.Transactional;

import com.otv.model.User;
import com.otv.user.dao.IUserDAO;

/**
 * 
 * User Service
 * 
 * @author onlinetechvision.com
 * @since 25 Mar 2012
 * @version 1.0.0
 *
 */
@Transactional(readOnly = true)
public class UserService implements IUserService {

    // UserDAO is injected...
    IUserDAO userDAO;

    /**
     * Add User
     * 
     * @param  User user
     */
    @Transactional(readOnly = false)
    @Override
    public void addUser(User user) {
        getUserDAO().addUser(user);
    }

    /**
     * Delete User
     * 
     * @param  User user
     */
    @Transactional(readOnly = false)
    @Override
    public void deleteUser(User user) {
        getUserDAO().deleteUser(user);
    }

    /**
     * Update User
     * 
     * @param  User user
     */
    @Transactional(readOnly = false)
    @Override
    public void updateUser(User user) {
        getUserDAO().updateUser(user);
    }

    /**
     * Get User
     * 
     * @param  int User Id
     */
    @Override
    public User getUserById(int id) {
        return getUserDAO().getUserById(id);
    }

    /**
     * Get User List
     * 
     */
    @Override
    public List<User> getUsers() {  
        return getUserDAO().getUsers();
    }

    /**
     * Get User DAO
     * 
     * @return IUserDAO - User DAO
     */
    public IUserDAO getUserDAO() {
        return userDAO;
    }

    /**
     * Set User DAO
     * 
     * @param IUserDAO - User DAO
     */
    public void setUserDAO(IUserDAO userDAO) {
        this.userDAO = userDAO;
    }

}

这是我的 UserDAO.java 文件

package com.otv.user.dao;

import java.util.List;

import com.otv.model.User;

import org.hibernate.SessionFactory;

/**
 * 
 * User DAO
 * 
 * @author onlinetechvision.com
 * @since 25 Mar 2012
 * @version 1.0.0
 *
 */

public class UserDAO implements IUserDAO {

    private SessionFactory sessionFactory;

    /**
     * Get Hibernate Session Factory
     * 
     * @return SessionFactory - Hibernate Session Factory
     */
    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    /**
     * Set Hibernate Session Factory
     * 
     * @param SessionFactory - Hibernate Session Factory
     */
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    /**
     * Add User
     * 
     * @param  User user
     */
    @Override
    public void addUser(User user) {
        getSessionFactory().getCurrentSession().save(user);
    }

    /**
     * Delete User
     * 
     * @param  User user
     */
    @Override
    public void deleteUser(User user) {
        getSessionFactory().getCurrentSession().delete(user);
    }

    /**
     * Update User
     * 
     * @param  User user
     */
    @Override
    public void updateUser(User user) {
        getSessionFactory().getCurrentSession().update(user);
    }

    /**
     * Get User
     * 
     * @param  int User Id
     * @return User 
     */
    @Override
    public User getUserById(int id) {
        List list = getSessionFactory().getCurrentSession()
                                            .createQuery("from User where id=?")
                                            .setParameter(0, id).list();
        return (User)list.get(0);
    }

    /**
     * Get User List
     * 
     * @return List - User list
     */
    @Override
    public List<User> getUsers() {
        List list = getSessionFactory().getCurrentSession().createQuery("from User").list();
        return list;
    }

}

感谢您的阅读。

4

2 回答 2

2

您需要在函数中替换int为。Integerpublic void deleteUser(int id)

JSF 仅适用于对象，您不能使用原始类型。

于 2012-11-30T21:36:20.317 回答
-1

FORCE 类代理。Spring使用基于代理的aop，您的托管bean实现了一个接口，因此使用jdk动态代理而不是类代理。

要么删除接口实现（Serializable），导致 Spring 求助于 CGLIB，要么详细地强制 CGLIB 代理，声明：

<aop:config proxy-target-class="true" />
于 2014-04-17T08:44:13.197 回答