我正在使用swing并尝试从数据库转换一个日期，我使用主细节来生成我的表单！ 当我使用Date类型时，它工作正常，但是当我尝试使用LocalDate时，我得到了这个例外：
Exception in thread "AWT-EventQueue-0" org.jdesktop.beansbinding.PropertyResolutionException: Exception invoking method public void javax.swing.JFormattedTextField.setValue(java.lang.Object) on javax.swing.JFormattedTextField[,71,210,541x28,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.synth.SynthBorder@64d52f45,flags=288,maximumSize=,minimumSize=,preferredSize=,caretColor=,disabledTextColor=DerivedColor(color=142,143,145 parent=nimbusDisabledText offsets=0.0,0.0,0.0,0 pColor=142,143,145,editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=DerivedColor(color=255,255,255 parent=nimbusSelectedText offsets=0.0,0.0,0.0,0 pColor=255,255,255,selectionColor=DerivedColor(color=57,105,138 parent=nimbusSelectionBackground offsets=0.0,0.0,0.0,0 pColor=57,105,138,columns=0,columnWidth=0,command=,horizontalAlignment=LEADING]
这是我的表格：
package br.com.imprimindo.conteudo.itext;
import java.awt.EventQueue;
import java.beans.Beans;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.RollbackException;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Form extends JPanel {
public Form() {
initComponents();
if (!Beans.isDesignTime()) {
entityManager.getTransaction().begin();
}
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
bindingGroup = new org.jdesktop.beansbinding.BindingGroup();
entityManager = java.beans.Beans.isDesignTime() ? null : javax.persistence.Persistence.createEntityManagerFactory("APPPU").createEntityManager();
query = java.beans.Beans.isDesignTime() ? null : entityManager.createQuery("SELECT p FROM Produto p");
list = java.beans.Beans.isDesignTime() ? java.util.Collections.emptyList() : org.jdesktop.observablecollections.ObservableCollections.observableList(query.getResultList());
masterScrollPane = new javax.swing.JScrollPane();
masterTable = new javax.swing.JTable();
idLabel = new javax.swing.JLabel();
codigoLabel = new javax.swing.JLabel();
ddvLabel = new javax.swing.JLabel();
descricaoLabel = new javax.swing.JLabel();
estoqueLabel = new javax.swing.JLabel();
valorLabel = new javax.swing.JLabel();
idField = new javax.swing.JTextField();
codigoField = new javax.swing.JTextField();
descricaoField = new javax.swing.JTextField();
estoqueField = new javax.swing.JTextField();
valorField = new javax.swing.JTextField();
saveButton = new javax.swing.JButton();
refreshButton = new javax.swing.JButton();
newButton = new javax.swing.JButton();
deleteButton = new javax.swing.JButton();
jFormattedTextField1 = new javax.swing.JFormattedTextField();
dateRender1 = new br.com.imprimindo.conteudo.itext.DateRender();
FormListener formListener = new FormListener();
org.jdesktop.swingbinding.JTableBinding jTableBinding = org.jdesktop.swingbinding.SwingBindings.createJTableBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, list, masterTable);
org.jdesktop.swingbinding.JTableBinding.ColumnBinding columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${id}"));
columnBinding.setColumnName("Id");
columnBinding.setColumnClass(Integer.class);
columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${codigo}"));
columnBinding.setColumnName("Codigo");
columnBinding.setColumnClass(String.class);
columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${ddv}"));
columnBinding.setColumnName("Ddv");
columnBinding.setColumnClass(java.time.LocalDate.class);
columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${descricao}"));
columnBinding.setColumnName("Descricao");
columnBinding.setColumnClass(String.class);
columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${estoque}"));
columnBinding.setColumnName("Estoque");
columnBinding.setColumnClass(Integer.class);
columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${valor}"));
columnBinding.setColumnName("Valor");
columnBinding.setColumnClass(Double.class);
bindingGroup.addBinding(jTableBinding);
jTableBinding.bind();
masterScrollPane.setViewportView(masterTable);
if (masterTable.getColumnModel().getColumnCount() > 0) {
masterTable.getColumnModel().getColumn(2).setCellRenderer(null);
}
idLabel.setText("Id:");
codigoLabel.setText("Codigo:");
ddvLabel.setText("Ddv:");
descricaoLabel.setText("Descricao:");
estoqueLabel.setText("Estoque:");
valorLabel.setText("Valor:");
org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.id}"), idField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue("null");
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), idField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.codigo}"), codigoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue("null");
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), codigoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.descricao}"), descricaoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue("null");
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), descricaoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.estoque}"), estoqueField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue("null");
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), estoqueField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.valor}"), valorField, org.jdesktop.beansbinding.BeanProperty.create("text"));
binding.setSourceUnreadableValue("null");
bindingGroup.addBinding(binding);
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), valorField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
saveButton.setText("Save");
saveButton.addActionListener(formListener);
refreshButton.setText("Refresh");
refreshButton.addActionListener(formListener);
newButton.setText("New");
newButton.addActionListener(formListener);
deleteButton.setText("Delete");
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), deleteButton, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);
deleteButton.addActionListener(formListener);
jFormattedTextField1.setFormatterFactory(new javax.swing.text.DefaultFormatterFactory(new javax.swing.text.DateFormatter()));
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.ddv}"), jFormattedTextField1, org.jdesktop.beansbinding.BeanProperty.create("value"));
bindingGroup.addBinding(binding);
dateRender1.setText("dateRender1");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(idLabel)
.addComponent(codigoLabel)
.addComponent(ddvLabel)
.addComponent(descricaoLabel)
.addComponent(estoqueLabel)
.addComponent(valorLabel))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(idField, javax.swing.GroupLayout.DEFAULT_SIZE, 541, Short.MAX_VALUE)
.addComponent(codigoField, javax.swing.GroupLayout.DEFAULT_SIZE, 541, Short.MAX_VALUE)
.addComponent(descricaoField, javax.swing.GroupLayout.DEFAULT_SIZE, 541, Short.MAX_VALUE)
.addComponent(estoqueField, javax.swing.GroupLayout.DEFAULT_SIZE, 541, Short.MAX_VALUE)
.addComponent(valorField, javax.swing.GroupLayout.DEFAULT_SIZE, 541, Short.MAX_VALUE)
.addComponent(jFormattedTextField1)))
.addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 595, Short.MAX_VALUE)))
.addGroup(layout.createSequentialGroup()
.addGap(29, 29, 29)
.addComponent(dateRender1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(newButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(deleteButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(refreshButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(saveButton)))
.addContainerGap())
);
layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {deleteButton, newButton, refreshButton, saveButton});
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 130, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(idLabel)
.addComponent(idField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(codigoLabel)
.addComponent(codigoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(ddvLabel)
.addComponent(jFormattedTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(descricaoLabel)
.addComponent(descricaoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(estoqueLabel)
.addComponent(estoqueField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(valorLabel)
.addComponent(valorField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(saveButton)
.addComponent(refreshButton)
.addComponent(deleteButton)
.addComponent(newButton))
.addContainerGap())
.addComponent(dateRender1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
);
bindingGroup.bind();
}
// Code for dispatching events from components to event handlers.
private class FormListener implements java.awt.event.ActionListener {
FormListener() {}
public void actionPerformed(java.awt.event.ActionEvent evt) {
if (evt.getSource() == saveButton) {
Form.this.saveButtonActionPerformed(evt);
}
else if (evt.getSource() == refreshButton) {
Form.this.refreshButtonActionPerformed(evt);
}
else if (evt.getSource() == newButton) {
Form.this.newButtonActionPerformed(evt);
}
else if (evt.getSource() == deleteButton) {
Form.this.deleteButtonActionPerformed(evt);
}
}
}// </editor-fold>
@SuppressWarnings("unchecked")
private void refreshButtonActionPerformed(java.awt.event.ActionEvent evt) {
entityManager.getTransaction().rollback();
entityManager.getTransaction().begin();
java.util.Collection data = query.getResultList();
for (Object entity : data) {
entityManager.refresh(entity);
}
list.clear();
list.addAll(data);
}
private void deleteButtonActionPerformed(java.awt.event.ActionEvent evt) {
int[] selected = masterTable.getSelectedRows();
List<br.com.imprimindo.conteudo.itext.Produto> toRemove = new ArrayList<br.com.imprimindo.conteudo.itext.Produto>(selected.length);
for (int idx = 0; idx < selected.length; idx++) {
br.com.imprimindo.conteudo.itext.Produto p = list.get(masterTable.convertRowIndexToModel(selected[idx]));
toRemove.add(p);
entityManager.remove(p);
}
list.removeAll(toRemove);
}
private void newButtonActionPerformed(java.awt.event.ActionEvent evt) {
br.com.imprimindo.conteudo.itext.Produto p = new br.com.imprimindo.conteudo.itext.Produto();
entityManager.persist(p);
list.add(p);
int row = list.size() - 1;
masterTable.setRowSelectionInterval(row, row);
masterTable.scrollRectToVisible(masterTable.getCellRect(row, 0, true));
}
private void saveButtonActionPerformed(java.awt.event.ActionEvent evt) {
try {
entityManager.getTransaction().commit();
entityManager.getTransaction().begin();
} catch (RollbackException rex) {
rex.printStackTrace();
entityManager.getTransaction().begin();
List<br.com.imprimindo.conteudo.itext.Produto> merged = new ArrayList<br.com.imprimindo.conteudo.itext.Produto>(list.size());
for (br.com.imprimindo.conteudo.itext.Produto p : list) {
merged.add(entityManager.merge(p));
}
list.clear();
list.addAll(merged);
}
}
// Variables declaration - do not modify
private javax.swing.JTextField codigoField;
private javax.swing.JLabel codigoLabel;
private br.com.imprimindo.conteudo.itext.DateRender dateRender1;
private javax.swing.JLabel ddvLabel;
private javax.swing.JButton deleteButton;
private javax.swing.JTextField descricaoField;
private javax.swing.JLabel descricaoLabel;
private javax.persistence.EntityManager entityManager;
private javax.swing.JTextField estoqueField;
private javax.swing.JLabel estoqueLabel;
private javax.swing.JTextField idField;
private javax.swing.JLabel idLabel;
private javax.swing.JFormattedTextField jFormattedTextField1;
private java.util.List<br.com.imprimindo.conteudo.itext.Produto> list;
private javax.swing.JScrollPane masterScrollPane;
private javax.swing.JTable masterTable;
private javax.swing.JButton newButton;
private javax.persistence.Query query;
private javax.swing.JButton refreshButton;
private javax.swing.JButton saveButton;
private javax.swing.JTextField valorField;
private javax.swing.JLabel valorLabel;
private org.jdesktop.beansbinding.BindingGroup bindingGroup;
// End of variables declaration
public static void main(String[] args) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Form.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
frame.setContentPane(new Form());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
int windowWidth = 615;
int windowHeight = 337;
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
frame.setBounds((screenSize.width - windowWidth) / 2, (screenSize.height - windowHeight) / 2, windowWidth, windowHeight);
frame.setLocationRelativeTo(null);
frame.pack();
frame.setVisible(true);
}
});
}
}
这是日期渲染：
package br.com.imprimindo.conteudo.itext;
import java.awt.Component;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Date;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
public class DateRender extends DefaultTableCellRenderer {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
if (value instanceof LocalDate) {
this.setText(sdf.format((LocalDate) value));
}
return this;
}
}
这是该项目
github
在分支大师它工作正常，但问题是，它在分支称为“localdate”！
当您单击masterTable fot以获取jTextfileds的数据时..
答案 0 :(得分：1)
由于这一行，您收到此错误：
this.setText(sdf.format((LocalDate) value));
您无法SimpleDateFormat直接使用LocalDate。您首先必须将LocalDate转换为Date，然后将SimpleDateFormat与转换后的Date对象一起使用。
以下是@Sotirios给出here答案的代码段：
LocalDate localDate = ... ;
Instant instant = localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant();
Date res = Date.from(instant);
答案 1 :(得分：0)
用户 user2004685 表示，您无法直接SimpleDateFormat使用LocalDate。最简单的解决方案是将LocalDate转换为java.util.Date到java.sql.Date：
java.util.Date date = java.sql.Date.valueOf(localDate);
this.setText(sdf.format(date));
相关链接：