Provider.java

 package yaopin;

import javax.swing.JPanel;

import java.awt.Component;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.table.DefaultTableModel;

import model.ProviderDAO;
import model.ProviderDTO;

public class Provider implements ActionListener
{

 private static final long serialVersionUID = 1L;

 private JPanel jSubPanel = null;

 private JLabel jLabelID, jLabelName, jLabelBank,jLabelBankID,jLabelAddress,jLabelLinkman, jLabelLinkPhone,jLabelFax,jLabelURL,jLabelEmail,jLabelPostCode;

 private JTextField jTextID,jTextName, jTextPostCode,jTextBankID,jTextLinkman, jTextLinkPhone,jTextURL,jTextAddress,jTextEmail,jTextFax,jTextBank;

 private JButton jBtnAdd, jBtnUpdate, jBtnDelete, jBtnSearch,jBtnCancel;

 private DefaultTableModel tableModel;
 
 private ProviderDTO providerDTO = new ProviderDTO();
 private ProviderDAO providerDAO;
 
 public DefaultTableModel getTableModel()
 {
  if (tableModel == null)
  {
   tableModel = new DefaultTableModel();    // 与控件名要一致。
   String[] columnNames = {"供应商编号", "供应商名称", "联系人", "联系电话", "联系地址", "网址", "传真", "电子邮件","邮政编码","开户银行","银行帐号"};
   for(String column : columnNames)
   {
    tableModel.addColumn(column);
   }
   providerDAO = new ProviderDAO();
   for(ProviderDTO user : providerDAO.fillProvider())
   {
    tableModel.addRow(user.toArray());
   }
  }
  return tableModel;
 }

 public JPanel getJSubPanel()
 {
  if (jSubPanel == null)
  {
   jLabelID = new JLabel("供应商编号");
   jLabelID.setBounds(new Rectangle(90, 40, 68, 22));
   jTextID = new JTextField();
   jTextID.setName("供应商编号");   // 与列名要一致。
   jTextID.setBounds(new Rectangle(160, 40, 200, 25));
   jLabelName = new JLabel("供应商名称");
   jLabelName.setBounds(new Rectangle(440, 40, 68, 22));
   jTextName = new JTextField();
   jTextName.setName("供应商名称");
   jTextName.setBounds(new Rectangle(510, 40, 200, 25));
   jLabelLinkman = new JLabel("联  系  人");
   jLabelLinkman.setBounds(new Rectangle(90, 72, 68, 22));
   jTextLinkman = new JTextField();
   jTextLinkman.setName("联系人");
   jTextLinkman.setBounds(new Rectangle(160, 72, 200, 25));
   jLabelLinkPhone = new JLabel("联系电话");
   jLabelLinkPhone.setBounds(new Rectangle(440, 72, 68, 22));
   jTextLinkPhone = new JTextField();
   jTextLinkPhone.setName("联系电话");
   jTextLinkPhone.setBounds(new Rectangle(510, 72, 200, 25));
   jLabelAddress = new JLabel("联系地址");
   jLabelAddress.setBounds(new Rectangle(90, 104, 68, 22));
   jTextAddress = new JTextField();
   jTextAddress.setName("联系地址");
   jTextAddress.setBounds(new Rectangle(160, 104, 200, 25));
   jLabelURL = new JLabel("网        址");
   jLabelURL.setBounds(new Rectangle(440, 104, 68, 22));
   jTextURL = new JTextField();
   jTextURL.setName("网址");
   jTextURL.setBounds(new Rectangle(510, 104, 200, 25));
   jLabelEmail = new JLabel("电子邮件");
   jLabelEmail.setBounds(new Rectangle(440, 136, 68, 22));
   jTextEmail = new JTextField();
   jTextEmail.setName("电子邮件");
   jTextEmail.setBounds(new Rectangle(510, 136, 200, 25));
   jLabelFax = new JLabel("传        真");
   jLabelFax.setBounds(new Rectangle(90, 136, 68, 22));
   jTextFax = new JTextField();
   jTextFax.setName("传真");
   jTextFax.setBounds(new Rectangle(160, 136, 200, 25));
   jLabelPostCode = new JLabel("邮政编码");
   jLabelPostCode.setBounds(new Rectangle(90, 168, 68, 22));
   jTextPostCode = new JTextField();
   jTextPostCode.setName("邮政编码");
   jTextPostCode.setBounds(new Rectangle(160, 168, 200, 25));
   jLabelBank = new JLabel("开户银行");
   jLabelBank.setBounds(new Rectangle(440, 168, 68, 22));
   jTextBank = new JTextField();
   jTextBank.setName("开户银行");
   jTextBank.setBounds(new Rectangle(510, 168, 200, 25));
   jLabelBankID = new JLabel("银行帐号");
   jLabelBankID.setBounds(new Rectangle(90, 200, 68, 22));
   jTextBankID = new JTextField();
   jTextBankID.setName("银行帐号");
   jTextBankID.setBounds(new Rectangle(160, 200, 200, 25));

   jBtnAdd = new JButton("添加");
   jBtnAdd.setBounds(new Rectangle(100, 260, 75, 23));
   jBtnAdd.addActionListener(this);
   jBtnUpdate = new JButton("修改");
   jBtnUpdate.setBounds(new Rectangle(210, 260, 75, 23));
   jBtnUpdate.addActionListener(this);
   jBtnDelete = new JButton("删除");
   jBtnDelete.setBounds(new Rectangle(320, 260, 75, 23));
   jBtnDelete.addActionListener(this);
   jBtnSearch = new JButton("查询");
   jBtnSearch.setBounds(new Rectangle(500, 260, 75, 23));
   jBtnSearch.addActionListener(this);
   jBtnCancel = new JButton("取消");
   jBtnCancel.setBounds(new Rectangle(610, 260, 75, 23));
   jBtnCancel.addActionListener(this);

   jSubPanel = new JPanel(null);
   jSubPanel.add(jLabelID, null);
   jSubPanel.add(jTextID, null);
   jSubPanel.add(jLabelName, null);
   jSubPanel.add(jTextName, null);
   jSubPanel.add(jTextLinkman, null);
   jSubPanel.add(jTextLinkPhone, null);
   jSubPanel.add(jLabelLinkman, null);
   jSubPanel.add(jLabelLinkPhone, null);
   jSubPanel.add(jTextAddress, null);
   jSubPanel.add(jLabelFax, null);
   jSubPanel.add(jTextEmail, null);
   jSubPanel.add(jLabelEmail, null);
   jSubPanel.add(jTextFax, null);
   jSubPanel.add(jTextURL, null);
   jSubPanel.add(jLabelURL, null);
   jSubPanel.add(jLabelBank, null);
   jSubPanel.add(jLabelBankID, null);
   jSubPanel.add(jTextBank, null);
   jSubPanel.add(jLabelPostCode, null);
   jSubPanel.add(jLabelAddress, null);
   jSubPanel.add(jTextBankID, null);
   jSubPanel.add(jTextPostCode, null);
   jSubPanel.add(jBtnAdd, null);
   jSubPanel.add(jBtnUpdate, null);
   jSubPanel.add(jBtnDelete, null);
   jSubPanel.add(jBtnSearch, null);
   jSubPanel.add(jBtnCancel, null);
  }
  return jSubPanel;
 }

 public void actionPerformed(ActionEvent e)
 {
  if(e.getSource().equals(jBtnSearch))
  {
   while(tableModel.getRowCount() > 0)
   {
    tableModel.removeRow(0); // 先清空所有数据
   }
   providerDTO = new ProviderDTO();
   providerDTO.setProviderID(jTextID.getText());
   providerDTO.setProviderName(jTextName.getText());
   providerDTO.setLinkman(jTextLinkman.getText());
   providerDAO.setProviderDTO(providerDTO);
   for(ProviderDTO user : providerDAO.searchProvider())
   {
    tableModel.addRow(user.toArray());
   }
  }
  else if(e.getSource().equals(jBtnAdd))
  {
   if (jSubPanel.getName() != null)
   {
    JOptionPane.showMessageDialog(jSubPanel,"供应商编号“" +jTextID.getText()+ "”已存在！");
    return;
   }
   this.userInfo();
   if(providerDAO.addProvider())
   {
    tableModel.addRow(providerDTO.toArray());
    this.clearText();
   }
   else
    JOptionPane.showMessageDialog(jSubPanel,"供应商编号“" +jTextID.getText()+ "”添加失败！");
  }
  else if(e.getSource().equals(jBtnUpdate))
  {
   if (jSubPanel.getName() == null)
   {
    JOptionPane.showMessageDialog(jSubPanel,"请选择要修改的行");
    return;
   }
   this.userInfo();
   if(providerDAO.updateProvider())
   {
    int rowIndex = Integer.parseInt(jSubPanel.getName());
    tableModel.removeRow(rowIndex);
    tableModel.insertRow(rowIndex, providerDTO.toArray());
    this.clearText();
   }
   else
    JOptionPane.showMessageDialog(jSubPanel,"供应商编号“" +jTextID.getText()+ "”修改失败！");

  }
  else if(e.getSource().equals(jBtnDelete))
  {
   if (jSubPanel.getName() == null)
   {
    JOptionPane.showMessageDialog(jSubPanel,"请选择要删除的行");
    return;
   }
   if(JOptionPane.showConfirmDialog(jSubPanel, "确实要删除员工编号“" + jTextID.getText() + "”吗？", "系统提示", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE) == 0)
   {
    providerDTO.setProviderID(jTextID.getText());
    providerDAO.setProviderDTO(providerDTO);
    if(providerDAO.deleteProvider())
    {
     tableModel.removeRow(Integer.parseInt(jSubPanel.getName()));
     this.clearText();
    }
    else
     JOptionPane.showMessageDialog(jSubPanel,"供应商编号“" +jTextID.getText()+ "”删除失败！");
   }
  }
  else
   this.clearText();
 }

 private void userInfo()
 {
   providerDTO.setProviderID(jTextID.getText());
   providerDTO.setProviderName(jTextName.getText());
   providerDTO.setLinkman(jTextLinkman.getText());
   providerDTO.setLinkPhone(jTextLinkPhone.getText());
   providerDTO.setFax(jTextFax.getText());
   providerDTO.setEmail(jTextEmail.getText());
   providerDTO.setUrl(jTextURL.getText());
   providerDTO.setAddress(jTextAddress.getText());
   providerDTO.setPostCode(jTextPostCode.getText());
   providerDTO.setBank(jTextBank.getText());
   providerDTO.setBankAccount(jTextBankID.getText());
   providerDAO.setProviderDTO(providerDTO);
 }

 private void clearText()
 {
  for(Component cpt : jSubPanel.getComponents())
  {
   if(cpt instanceof JTextField)    //JAVA(instanceof) == .NET (is)
    ((JTextField)cpt).setText(null); // 清空文本框
  }
  jSubPanel.setName(null);
  jTextID.setEditable(true);
  jTextID.requestFocusInWindow(); // 设置焦点
 }
}