org.hibernate.PropertyNotFoundException：找不到属性的吸气剂

【问题标题】：org.hibernate.PropertyNotFoundException: Could not find a getter for a propertyorg.hibernate.PropertyNotFoundException：找不到属性的吸气剂
【发布时间】：2017-07-23 12:46:11
【问题描述】：

我是 jsf 和休眠的新手 我只是想通过jsf和hibernate在数据库中添加名称 我不知道我的代码有什么问题 以下是我的代码

newjsf.xhtml

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>JSF Hibernate CRUD Example</title>
</h:head>
<h:body>
<h:form>
<h:outputText value="Name"/><br/>
<h:inputText value="#{customer.name}"/>
<h:commandButton value="submit" action="#{customer.save()}"/>
</h:form>
</h:body>
</html>

客户.java

package com.javaknowledge.entity;
import com.javaknowledge.dao.CustomerDao;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

@ManagedBean
@SessionScoped
public class Customer implements java.io.Serializable {

private Integer custID;
private String name;
private String msg;

public Customer() {
}

public Integer getcustID() {
    return custID;
}

public void setcustID(Integer custid) {
    this.name = custid;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getMsg() {
    return msg;
}

public void setMsg(String msg) {
    this.msg = msg;
}

    public void save(){
    CustomerDao dao = new CustomerDao();
    dao.addCustomer(this);
    this.msg = "ok insertation done";
}         


}

CustomerDao.java 

package com.javaknowledge.dao;
import com.javaknowledge.entity.Customer;
import com.javaknowledge.util.HibernateUtil;

import org.hibernate.Session;
import org.hibernate.Transaction;

public class CustomerDao {


public void addCustomer(Customer cust) {
    Transaction trns = null;
    Session session = HibernateUtil.getSessionFactory().openSession();
    try {
        trns = session.beginTransaction();
        session.save(cust);
        session.getTransaction().commit();
    } catch (RuntimeException e) {
        if (trns != null) {
            trns.rollback();
        }
        e.printStackTrace();
    } finally {
        session.flush();
        session.close();
    }
}
}

休眠映射

<hibernate-mapping>

<class name="com.javaknowledge.entity.Customer" table="C_name">
<id name="custId" type="java.lang.Integer" column="cust_id">
<generator class="identity"/>
</id>
<property name="name" type="string" column="name"/>
</class>

</hibernate-mapping>

休眠配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
  <session-factory>


<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>  
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/college</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>

<property name="hibernate.connection.pool_size">1</property>
<property name="hbm2ddl.auto">create</property>
<property name="show_sql">true</property>

<mapping resource="com/javaknowledge/entity/hibernate.hbm.xml"/>

</session-factory>
</hibernate-configuration>

hibernateutil.java

package com.javaknowledge.util;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.HibernateException;

public class HibernateUtil {
private static final SessionFactory sessionFactory;

static {
    try {
        Configuration configuration = new Configuration().configure();
        StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
        sessionFactory = configuration.buildSessionFactory(builder.build());
    } catch (HibernateException ex) {
        System.err.println("Initial SessionFactory creation failed." + ex);
        throw new ExceptionInInitializerError(ex);
    }
}

public static SessionFactory getSessionFactory() {
    return sessionFactory;
}

public static void closeSessionFactory() {
    sessionFactory.close();
}
}

这是我的错误日志..

An Error Occurred:
java.lang.ExceptionInInitializerError

Stack Trace

    javax.faces.el.EvaluationException: java.lang.ExceptionInInitializerError
        at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
        at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
        at javax.faces.component.UICommand.broadcast(UICommand.java:315)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
        at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
        at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
        at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
        at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
        at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
        at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
        at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
        at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:[][1]591)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
        at java.lang.Thread.run(Thread.java:745)

    Caused by: java.lang.ExceptionInInitializerError
        at com.javaknowledge.util.HibernateUtil.<clinit>(HibernateUtil.java:24)
        at com.javaknowledge.dao.CustomerDao.addCustomer(CustomerDao.java:18)
        at com.javaknowledge.entity.Customer.save(Customer.java:51)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at javax.el.ELUtil.invokeMethod(ELUtil.java:332)
        at javax.el.BeanELResolver.invoke(BeanELResolver.java:537)
        at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
        at com.sun.el.parser.AstValue.invoke(AstValue.java:283)
        at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
        at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
        at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
        ... 36 more

    Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for custId in class com.javaknowledge.entity.Customer
        at org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:310)
        at org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:304)
        at org.hibernate.tuple.PropertyFactory.getGetter(PropertyFactory.java:497)
        at org.hibernate.tuple.PropertyFactory.buildIdentifierAttribute(PropertyFactory.java:87)
        at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:163)
        at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:520)
        at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:148)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.hibernate.persister.internal.PersisterFactoryImpl.create(PersisterFactoryImpl.java:163)
        at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:135)
        at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:400)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1857)
        at com.javaknowledge.util.HibernateUtil.<clinit>(HibernateUtil.java:21)
        ... 49 more

告诉我怎么了？

【问题讨论】：

  • 问题标签很重要。使用不必要的标签和不必要的代码 sn-ps 将问题转移到对问题根本不感兴趣的用户。异常org.hibernate.PropertyNotFoundException: Could not find a getter for a property 的根本原因与JSF 完全无关。因此，这不是 JSF 的主题，而是 Hibernate / JPA 的问题。
  • 并尝试使用更现代的基于 JPA2 的 jsf 教程。许多方法几乎是史前的。
  • 我知道您正在使用 @ManagedBean 和休眠映射。但后来我将代码更改为最新的 CIDR，并且我还继续使用注解进行映射。我还有什么要去做的吗？我想还有一件事是我应该去最新的休眠，不是吗？

标签： java hibernate jsf


【解决方案1】：

原因：org.hibernate.PropertyNotFoundException：在 com.javaknowledge.entity.Customer 类中找不到 custId 的 getter

看起来你有几个错别字。在您的Customer 类中，将custID 重命名为custId，因为您的映射需要一个名为custId 的字段。然后重命名以下方法...

public Integer getcustID() {
    return custID;
}

public void setcustID(Integer custid) {
    this.name = custid;
}

...遵循驼峰式约定并使用重命名的custId：

public Integer getCustId() {
    return custId;
}

public void setCustId(Integer custId) {
    this.custId = custId;
}

另外，在setcustID 中，您设置的是name，而不是设置custId。

【讨论】：

  • 哦，谢谢，但仍然没有输出。我做了这些更改，现在我的 jsf 页面正在加载，并且旁边没有发生任何事情，没有输出没有错误！
猜你喜欢
  • 2018-08-17
  • 2018-04-05
  • 1970-01-01
  • 1970-01-01
  • 1970-01-01
  • 1970-01-01
  • 1970-01-01
  • 1970-01-01
  • 2012-01-31
相关资源
最近更新 更多
热门标签
Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode