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[英]org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.dms.model.Group.groupId
[英]Hibernate PropertyAccessException: IllegalArgumentException occurred calling getter? What happened?
當我運行下面的代碼以顯示屬於JTable中特定類別的項目時,我收到此異常:
private void categoryComboBoxActionPerformed(java.awt.event.ActionEvent evt) {
try {
DefaultTableModel dtm = new DefaultTableModel();
String cat = this.categoryComboBox.getSelectedItem().toString();
session=sessionFactory.openSession();
transaction = session.beginTransaction();
Criteria criteria = session.createCriteria(Items.class);
//HERE LIES THE PROBLEM BUT I HAVE NO CLUE HOW TO SOLVE IT
List<Items> itemlist = criteria.add(Restrictions.eq("category", cat).ignoreCase()).list();
transaction.commit();
session.close();
if (dtm.getColumnCount()==0) {
dtm.addColumn("Name");
dtm.addColumn("Category");
dtm.addColumn("Quantity");
dtm.addColumn("Net Price (per unit)");
dtm.addColumn("Gross Pice (per unit)");
dtm.addColumn("Net Price (total)");
dtm.addColumn("Gross Price (total)");
}
Font f = new Font("Georgia", Font.BOLD, 16);
JTableHeader header = itemTable.getTableHeader();
header.setFont(f);
itemTable.setRowHeight(25);
if (getQuantity().isEmpty()) {for (int i = 0; i < itemlist.size(); i++) {
dtm.addRow(new Object[]{itemlist.get(i).getName(), itemlist.get(i).getCategory().getName(),"-",itemlist.get(i).getNetPrice(), Math.round((Double.valueOf(itemlist.get(i).getNetPrice())*(1d+itemlist.get(i).getVatRate()/100d))), "-", "-"});
}
} else {
for (int i = 0; i < itemlist.size(); i++) {
dtm.addRow(new Object[]{itemlist.get(i).getName(), itemlist.get(i).getCategory().getName(), getQuantity().get(itemlist.get(i).getItemId()).getQuantity(), itemlist.get(i).getNetPrice(), itemlist.get(i).getNetPrice()*(itemlist.get(i).getVatRate()+1), getQuantity().get(itemlist.get(i).getItemId()).getQuantity()*itemlist.get(i).getNetPrice(), itemlist.get(i).getNetPrice()*(itemlist.get(i).getVatRate()+1)*getQuantity().get(itemlist.get(i).getItemId()).getQuantity()});
}
}
this.itemTable.setModel(dtm);} catch (Exception e) {
JOptionPane.showMessageDialog(null, e.getMessage());
e.printStackTrace();
}
}
這也是我的XML映射類:
Caregories.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated Feb 9, 2019, 3:57:52 PM by Hibernate Tools 4.3.1 -->
<hibernate-mapping>
<class name="classes.Categories" table="CATEGORIES" schema="APP" optimistic-lock="version">
<id name="categoryId" type="int">
<column name="CATEGORY_ID" />
<generator class="native" />
</id>
<property name="name" type="string">
<column name="NAME" length="100" />
</property>
<set name="items" table="ITEMS" inverse="false" cascade="all" lazy="false" fetch="select">
<key>
<column name="CATEGORY_ID" not-null="true" />
</key>
<one-to-many class="classes.Items" />
</set>
</class>
</hibernate-mapping>
Items.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="classes.Items" table="ITEMS" schema="APP" optimistic-lock="version">
<id name="itemId" type="int" column="ITEM_ID">
<generator class="native" />
</id>
<property name="name" type="string" column="NAME" length="100"/>
<property name="netPrice" type="java.lang.Integer" column="NET_PRICE"/>
<property name="vatRate" type="java.lang.Integer" column="VAT_RATE"/>
<many-to-one name="category" class="classes.Categories" fetch="select" column="CATEGORY_ID" not-null="true" lazy="false"/>
</class>
</hibernate-mapping>
Categories.java
package classes;
// Generated Feb 9, 2019, 3:57:50 PM by Hibernate Tools 4.3.1
import java.util.Set;
public class Categories implements java.io.Serializable {
private int categoryId;
private String name;
private Set<Items> items;
public Categories() {
}
public Categories(int categoryId, String name, Set<Items> items) {
this.categoryId = categoryId;
this.name = name;
this.items = items;
}
public int getCategoryId() {
return this.categoryId;
}
public void setCategoryId(int categoryId) {
this.categoryId = categoryId;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public Set<Items> getItems() {
return items;
}
public void setItems(Set<Items> items) {
this.items = items;
}
}
Items.java
package classes;
public class Items implements java.io.Serializable {
private int itemId;
private String name;
private Integer netPrice;
private Integer vatRate;
private Categories category;
public Items() {
}
public Items(int itemId, String name, Integer netPrice, Integer vatRate, Categories category) {
this.itemId = itemId;
this.name = name;
this.netPrice = netPrice;
this.vatRate = vatRate;
this.category = category;
}
public int getItemId() {
return this.itemId;
}
public void setItemId(int itemId) {
this.itemId = itemId;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public Integer getNetPrice() {
return this.netPrice;
}
public void setNetPrice(Integer netPrice) {
this.netPrice = netPrice;
}
public Integer getVatRate() {
return this.vatRate;
}
public void setVatRate(Integer vatRate) {
this.vatRate = vatRate;
}
public Categories getCategory() {
return category;
}
public void setCategory(Categories category) {
this.category = category;
}
}
org.hibernate.PropertyAccessException:發生IllegalArgumentException調用類的getter。org.hibernate.property.access.spi.GetterMethodImpl.get(GetterMethodImpl.java:65)的org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier( org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4933)的org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4633)的org.hibernate.engine org.hibernate.engine.internal.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:276)處的org.hibernate.type.EntityType.EntityType.getIdentifier(EntityType.java:495)處的.internal.ForeignKeys.isTransient(ForeignKeys.java:226) org.hibernate.loader.Loader.bindPositionalParameters(Loader.java:2102)的org.hibernate.type.EntityType.nullSafeSet(EntityType.java:288)org.hibernate.loader.Loader.bindParameterValues(Loader.java:2071)在org.hibernate.loader.Load er.prepareQueryStatement(Loader.java:2006)位於org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1920)位於org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1898)位於org.hibernate.loader org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:340)在org.hibernate.loader.Loader.doList(Loader.java:2695)在org.hibernate的.Loader.doQuery(Loader.java:937)。 org.hibernate.loader.Loader.list的loader.Loader.doList(Loader.java:2678)org.hibernate的org.hibernate.loader.Loader.list(Loader.java:2507)的IgnoreQueryCache(Loader.java:2512)位於org.hibernate.internal.SessionImpl.list(SessionImpl.java:1999)的.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:109)位於org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:370) stock.view.StockView.categoryComboBoxActionPerformed(StockView.java:530)在stock.view.StockView $ FormListener.actionPerformed(StockView.java:344)在java.desktop / javax.swing.JComboBox.fireActionEvent(JComboBox.java:1264)一種 t java.desktop / javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:123)上的java.desktop / javax.swing.JComboBox.contentsChanged(JComboBox.java:1337)在java.desktop / javax.swing.DefaultComboBoxModel.setSelectedItem在stock.view的java.desktop / javax.swing.DefaultComboBoxModel.addElement(DefaultComboBoxModel.java:132)處(DefaultComboBoxModel.java:94)在java.desktop / javax.swing.JComboBox.addItem(JComboBox.java:716)處。在stock.view.StockView上的StockView.FillUpComboBox(StockView.java:103)在main.view.MainMenu.stockMenuItemActionActionPerformed(MainMenu.java:290)處在main.view.MainMenu $ FormListener.actionPerformed( MainMenu.java:240)at java.desktop / javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)at java.desktop / javax.swing.AbstractButton $ Handler.actionPerformed(AbstractButton.java:2308)at java.desktop /javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)位於java.desktop / javax.swing.DefaultButtonModel.setPressed(D java的java.desktop / javax.swing.AbstractButton.doClick(AbstractButton.java:369)的efaultButtonModel.java:262)java的java.desktop / javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1020)的efaultButtonModel.java:262)位於java.desktop / java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297)的.desktop / javax.swing.plaf.basic.BasicMenuItemUI $ Handler.mouseReleased(BasicMenuItemUI.java:1064)在java.desktop / java.awt的java.desktop / javax.swing.JComponent.processMouseEvent(JComponent.java:3342)的.Component.processMouseEvent(Component.java:6632)的java.desktop / java.awt.Component.processEvent(Component.java:6397)的。 java.desktop / java.awt.Component.dispatchEventImpl(Component.java:5008)上的java.desktop / java.awt.Container.processEvent(Container.java:2263)(java.desktop / java.awt.Container.dispatchEventImpl(Component.java:5008)在java.desktop / java.awt.Component.dispatchEvent(Component.java:4840)處的Container.java:2321)在java.desktop / java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)處的java.desktop / j 位於java.desktop / java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)的ava.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)在java.desktop / java.awt.Container.dispatchEventImpl(Container.java: 2307)位於java.desktop / java.awt.Window.dispatchEventImpl(Window.java:2772)位於java.desktop / java.awt.Component.dispatchEvent(Component.java:4840)位於java.desktop / java.awt.EventQueue .dispatchEventImpl(EventQueue.java:772)位於java.desktop / java.awt.EventQueue $ 4.run(EventQueue.java:721)at java.desktop / java.awt.EventQueue $ 4.run(EventQueue.java:715)at java.base / java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)上的java.base / java.security.AccessController.doPrivileged(本機方法)at java.base / java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) (ProtectionDomain.java:95)在java.desktop / java.awt.EventQueue $ 5.run(EventQueue.java:745)在java.desktop / java.awt.EventQueue $ 5.run(EventQueue.java:743)在j java.base / java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)處的ava.base / java.security.AccessController.doPrivileged(本機方法)java.desktop / java.awt.EventQueue.dispatchEvent(EventQueue) .java:742),位於java.desktop / java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203),位於java.desktop / java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)。 java.desktop / java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)處的awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)在java.desktop / java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)在java.desktop / java.awt.EventDispatchThread.run(EventDispatchThread.java:90)造成原因:java.lang.IllegalArgumentException:object不是在java.base / jdk.internal.reflect.NativeMethodAccessorImpl.invoke0上聲明類的實例。 (本機方法)位於java.base / jdk.internal.ref 位於java.base / jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)的lect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62),位於java.base / java.lang.reflect.Method.invoke(Method。 java:566)at org.hibernate.property.access.spi.GetterMethodImpl.get(GetterMethodImpl.java:42)...還有71
criteria.add(Restrictions.eq("category", cat).ignoreCase())
這是錯誤的。 您無法將關系與字符串進行比較。 下面是一個直接來自Hibernate文檔的示例:
List<Items> itemlist = sess.createCriteria(Items.class)
.createAlias("category",c)
.add( Restrictions.eq("c.name", cat))
.list();
https://docs.jboss.org/hibernate/orm/3.3/reference/en/html/querycriteria.html
另一個觀察結果是您正在使用inverse = false。 IMO,您希望它為逆= true
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