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java - org.hibernate.PropertyNotFoundException : Could not find a getter for a property

转载 作者：行者123 更新时间：2023-12-02 12:31:32 25 4
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我是 jsf 和 hibernate 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();
    }
}
}

hibernate 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>

hibernate 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

告诉我出了什么问题？

最佳答案

Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for custId in class com.javaknowledge.entity.Customer

看起来好像有一些错别字。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;
}

...遵循驼峰式命名约定并使用重命名的 custId:

public Integer getCustId() {
    return custId;
}

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

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

关于java - org.hibernate.PropertyNotFoundException : Could not find a getter for a property，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45265256/

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