Question

我正在使用JPA API并且效果很好，我尝试在课程中添加新成员/列，当我尝试使用表单向其中添加数据时，它会显示＆＃34;交易中止＆＃34;错误。

"javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLIntegrityConstraintViolationException: Column 'ITEM_QTY'  cannot accept a NULL value.
Error Code: 20000
Call: INSERT INTO ITEM (B_ID, DESCRIPTION, ITEM_NAME, ITEM_PRICE, MANUFACTURER, DTYPE) VALUES (?, ?, ?, ?, ?, ?)
bind => [6 parameters bound]"

此错误显示在glassfish日志中

这些是我生成的实体 Item_.java

package Entities;

import javax.annotation.Generated;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;

@Generated(value="EclipseLink-2.5.2.v20140319-rNA", date="2018-03-20T16:09:40")
@StaticMetamodel(Item.class)
public class Item_ { 

    public static volatile SingularAttribute<Item, Long> item_id;
    public static volatile SingularAttribute<Item, Long> b_id;
    public static volatile SingularAttribute<Item, Double> item_price;
    public static volatile SingularAttribute<Item, String> description;
    public static volatile SingularAttribute<Item, String> item_name;
    public static volatile SingularAttribute<Item, String> manufacturer;

}

和Scarf.java

package Entities;

import javax.annotation.Generated;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;

@Generated(value="EclipseLink-2.5.2.v20140319-rNA", date="2018-03-20T16:09:40")
@StaticMetamodel(Scarf.class)
public class Scarf_ extends Item_ {

    public static volatile SingularAttribute<Scarf, Long> t_id;
    public static volatile SingularAttribute<Scarf, Double> final_price;
    public static volatile SingularAttribute<Scarf, Double> discount;

}

EJB＆＃39; S

Item.java

/*

package Entities;

import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

/**
 * Creates Item Superclass Object
 * @author josh
 */
@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class Item  implements Serializable {

    // Attributes
        public static final String ITEM = "Item.findAllItems";
    private static final long serialVersionUID = 1L;

    @Id 
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    public Long item_id;
    @Column(nullable = true)
    public Long b_id;
    @Column(nullable = true)
    public String manufacturer;
    @Column(nullable = true)
    public String item_name;
    @Size(max = 2000)
    @Column(length = 2000)
    public String description;
    @Column(nullable = true)
    public double item_price;

    /**
     * Empty Constructor
     */
    public Item() {
    }

    /**
     * Constructor with Data
     * @param b_id
     * @param item_name
     * @param manufacturer
     * @param description
     * @param item_price
     */
    public Item(long b_id ,String item_name, String manufacturer, String description, double item_price) 
    {
        this.b_id = b_id;
        this.item_name = item_name;
        this.manufacturer = manufacturer;
        this.description = description;
        this.item_price = item_price;

    }

    /**
     * Get and Set Methods
     * @return 
     */    
    public Long getId() {
        return item_id;
    }

    public void setId(Long i) {
        this.item_id = i;
    }

    public Long getB_id() {
        return b_id;
    }

    public void setB_id(Long i) {
        this.b_id = i;
    }

    public String getItem_name() {
        return item_name;
    }

    public void setItem_name(String i) {
        this.item_name = i;
    }

    public String getManufacturer() {
        return manufacturer;
    }

    public void setManufacturer(String m) {
        this.manufacturer = m;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String d) {
        this.description = d;
    }

    public double getItem_price() {
        return item_price;
    }

    public void setItem_price(double i) {
        this.item_price = i;
    }

    /**
     * Search Methods
     */  
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (item_id != null ? item_id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof Item)) {
            return false;
        }
        Item other = (Item) o;
        if ((this.item_id == null && other.item_id != null) || (this.item_id != null && !this.item_id.equals(other.item_id))) {
            return false;
        }
        return true;
    }

    /**
     * ToString Override Method
     * */
    @Override
    public String toString() {
        return String.format (
       "%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n",
            "Barcode: ",Long.toString(b_id),
            "Item Name: ",this.item_name,
            "Manufacturer: ",this.manufacturer, 
            "Item Price: ",Double.toString(item_price),
            "Category: ",this.description
        );
    } 
}

Scarf.java

/*

package Entities;

import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.validation.constraints.NotNull;

/**
 * Creates Scarf Subclass Object
 *
 */
@Entity
public class Scarf extends Item implements Serializable 
{

    // Attributes
    public static final String SCARFS = "Scarf.findAllScarfs";
    private static final long serialVersionUID = 1L;

    @Column(nullable = true)
    public long t_id;
    @Column(nullable = true)
    public double discount;
    @Column(nullable = true)
    public double final_price;


    /**
     * Empty Constructor
     */
    public Scarf() {
    }

    /**
     * Constructor with Data
     * @param b_id
     * @param item_name
     * @param manufacturer
     * @param description
     * @param item_price
     * @param t_id
     * @param discount
     * @param final_price

     */
    public Scarf(long b_id, String item_name, String manufacturer, String description, double item_price, double discount, double final_price) 
    {
        super(b_id, item_name, manufacturer, description, item_price);
        this.t_id = t_id;
        this.discount = discount;
        this.final_price = final_price;
    }

    /**
     * Get and Set Methods
     *
     * @return
     */

     public Long getT_id() {
        return t_id;
    }

    public void setT_id(Long i) {
        this.t_id = i;
    }

    public double getDiscount() {
        return discount;
    }

    public void setDiscount(double i) {
        this.discount = i;
    }

    public double getFinal_price() {
        return final_price;
    }

    public void setFinal_price(double i) {
        this.final_price = i;
    }

    /**
     * ToString Override Method
     */
    @Override
    public String toString() {
        return String.format(
                "%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n%s%s\n",
                "Item ID: ", Long.toString(this.item_id),
                "Barcode: ", Long.toString(this.b_id),
                "Item Name: ", this.item_name,
                "Manufacturer: ", this.manufacturer,
                "Description: ", this.description,
                "Item Price: ", Double.toString(item_price),
                "Tag ID: ", Long.toString(this.t_id),
                "Discount: ", Double.toString(discount),
                "Final Price: ", Double.toString(final_price)

        );
    }

}

Create.xhtml

<h:panelGroup id="messagePanel" layout="block">
                <h:messages errorStyle="color: red" infoStyle="color: green" layout="table"/>
            </h:panelGroup>

            <!--Create panel-->
            <h:form>
                <h:panelGrid columns="2">

                    <h:outputLabel value="Barcode" for="b_id" />
                    <h:inputText id="b_id" value="#{scarfController.selected.b_id}" title="Barcode" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Item Name" for="item_name" />
                    <h:inputText id="item_name" value="#{scarfController.selected.item_name}" title="Item Name" required="true" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Manufacturer" for="manufacturer" />
                    <h:inputText id="manufacturer" value="#{scarfController.selected.manufacturer}" title="Manufacturer" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Category" for="description" />
                    <h:inputText id="description" value="#{scarfController.selected.description}" title="Description" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Price" for="item_price" />
                    <h:inputText id="item_price" value="#{scarfController.selected.item_price}" title="Price" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Tag Barcode" for="t_id" />
                    <h:inputText id="t_id" value="#{scarfController.selected.t_id}" title="Tag Barcode" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Discount" for="discount" />
                    <h:inputText id="discount" value="#{scarfController.selected.discount}" title="Discount" required="false" requiredMessage="#{bundle.RequiredMessage}"/>
                    <h:outputLabel value="Final Price" for="final_price" />
                    <h:inputText id="final_price" value="#{scarfController.selected.final_price}" title="Final Price" required="false" requiredMessage="#{bundle.RequiredMessage}"/>

                </h:panelGrid>
                 <br/> 
                <h:commandLink action="#{scarfController.persistScarf}" value="#{bundle.SaveLink}" />
                 <br /> 
             <a href="/home/" >Cancel</a>
            <br />

            </h:form>

添加属性后更新日志

Finer:   client acquired: 1783508080
Finer:   TX binding to tx mgr, status=STATUS_ACTIVE
Finer:   acquire unit of work: 2032803813
Finer:   TX afterCompletion callback, status=ROLLEDBACK
Finer:   release unit of work
Finer:   client released
Warning:   A system exception occurred during an invocation on EJB ScarfProducer, method: public void Beans.utility.Producer.create(java.lang.Object)
Warning:   javax.ejb.EJBException
    at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748)
    at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698)
    at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:503)
    at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4566)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2074)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2044)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:220)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at com.sun.proxy.$Proxy233.create(Unknown Source)
    at Beans.__EJB31_Generated__ScarfProducer__Intf____Bean__.create(Unknown Source)
    at Beans.ScarfController.persistScarf(ScarfController.java:117)
    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 com.sun.el.parser.AstValue.invoke(AstValue.java:289)
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
    at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
    at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
    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:646)
    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:415)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
    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:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    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:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    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$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:748)

Answer 1

问题是您没有重建/重新部署jar文件。我可以看到它最后一次构建时是aronlilland:receiving_log_api (master)$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 85c7f58994ec receiving_log_api "/bin/sh -c 'bundle …" About an hour ago Up About an hour 0.0.0.0:9292->9292/tcp receiving-log。在.war文件中，/* Node is defined as class Node { int data; Node next; } */ Node mergeLists(Node headA, Node headB) { if(headA==null) { return headB; } if(headB==null) { return headA; } if(headA.data<headB.data) { headA.next=mergeLists(headA.next,headB.next); return headA; } else{ headB.next=mergeLists(headA.next,headB.next); return headB; } }中有一个文件公开了这些信息：

Dec 31 17:46:18 AEST 2015

我认为如果您尝试通过maven构建它然后重新部署它，问题就会消失。

Answer 2

更改数据库表以在ITEM_QTY列上删除非空约束。

java.sql.SQLIntegrityConstraintViolationException：Column＆＃39; ITEM_QTY＆＃39;无法接受NULL值

2 个答案: