goodbuyfatherjpanel.java

JAVA实现的酒店管理系统

package file1;

/*
 * @Author:黄顺武
 * Create Time:2008-2-17
 * Description:对货品的进货情况进行录入显示的界面
 */
import javax.swing.*;
import java.util.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

public class GoodBuyFatherJPanel extends JPanel implements ActionListener,
		ItemListener {

	private JLabel goodType = new JLabel("货品类型:");
	private JComboBox goodTypeBox = new JComboBox();
	private JLabel goodName = new JLabel("货品名称:");
	private JComboBox goodNameBox = new JComboBox();
	private JLabel numberBuy = new JLabel("进货数量:");
	private JTextField numberBuyTF = new JTextField(10);
	private JLabel timeBuy = new JLabel("进货时间:");
	private JTextField timeBuyTF = new JTextField(10);
	private String[] goodIDs = null;// 存储所有货品id的变量数组
	private String[] goodBuyIDs = null;// 存储所有进货记录的变量数组
	private String[] typeIDs = null;// 存储所有货品类型记录的变量数组
	private String idModified = "";// 被修改的记录的id
	private int numberBuyOld = 0;// 被修改的进货记录的进货数量
	private JPanel p1 = new JPanel();
	private JTable recTable = null;
	private String[] head = { "ID", "货品类型", "货品名称", "进货数量", "进货时间" };
	private int headNum = 0;
	private String[][] data = null;
	private JScrollPane recScrollPane = null;
	private GetDate getD = new GetDate();
	private AMDJPanel amdJPanel = null;// 含有增删改按钮的面版

	public GoodBuyFatherJPanel() {
		headNum = head.length;
		amdJPanel = new AMDJPanel();
		p1.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 0));
		p1.add(goodType);
		p1.add(goodTypeBox);
		p1.add(goodName);
		p1.add(goodNameBox);
		p1.add(numberBuy);
		p1.add(numberBuyTF);
		p1.add(timeBuy);
		p1.add(timeBuyTF);
		getAllGoodTypes();// 调用自定义函数初始化货品类型下拉框
		getAllRecords();// 显示所有进货记录
		goodTypeBox.addItemListener(this);
		amdJPanel.getDeleteButton().addActionListener(this);
		amdJPanel.getModifyButton().addActionListener(this);
		amdJPanel.getAddButton().addActionListener(this);
	}

	private void getAllGoodTypes() {// 初始化货品类型下拉框
		if (goodTypeBox.getItemCount() > 0) {
			goodTypeBox.removeAllItems();
		}
		GoodType goodType = new GoodType();
		goodType.setID(0);
		GoodTypeOperate goodTypeOperate = new GoodTypeOperate();
		ArrayList valuesGet = goodTypeOperate.selectFromDB(goodType);// 从数据库中查询所有货品类型记录
		int total = valuesGet.size();// total为记录货品类型总数变量
		typeIDs = new String[total];
		total = 0;// 从开始位置给数组赋值
		Iterator it = valuesGet.iterator();
		for (int i = 0; i < valuesGet.size(); i++) {
			GoodType gType = (GoodType) valuesGet.get(i);
			typeIDs[total++] = String.valueOf(gType.getID());
			goodTypeBox.addItem(gType.getTypeName());
		}
		goodTypeBox.setSelectedIndex(-1);// 初始状态置为空
	}

	private void getAllRecords() {// 从数据库中读取所有要显示的进货记录并显示在表格中
		GoodBuy goodBuy = new GoodBuy();
		goodBuy.setID(0);// 表示查询所有货品记录
		GoodBuyOperate goodBuyOperate = new GoodBuyOperate();
		HashMap valuesGet = goodBuyOperate.selectFromDB(goodBuy);
		int total = valuesGet.size();// total为记录总数变量
		if (total == 0) {// 数据库中没有货品记录
			amdJPanel.getModifyButton().setEnabled(false);// 把"修改记录"按钮置为不可用
			amdJPanel.getDeleteButton().setEnabled(false);// 把"删除记录"按钮置为不可用
		} else {
			amdJPanel.getModifyButton().setEnabled(true);// 把"修改记录"按钮置为可用
			amdJPanel.getDeleteButton().setEnabled(true);// 把"删除记录"按钮置为可用
		}
		goodBuyIDs = new String[total];
		data = new String[total][headNum];
		total = 0;// 从开始位置给数组赋值
		Set keySet = valuesGet.keySet();
		Iterator it = keySet.iterator();
		while (it.hasNext()) {
			GoodBuy goodBuyTemp = (GoodBuy) valuesGet.get(it.next());
			String id = String.valueOf(goodBuyTemp.getID());
			goodBuyIDs[total] = id;
			data[total][0] = id;
			data[total][1] = (String) goodBuyTemp.getProperty("typeName");
			data[total][2] = (String) goodBuyTemp.getProperty("goodName");
			data[total][3] = String.valueOf(goodBuyTemp.getNumber_Buy());
			data[total][4] = goodBuyTemp.getDate_Buy();
			total++;
		}
		recTable = new JTable(data, head);
		recScrollPane = new JScrollPane(recTable);
		this.setLayout(new BorderLayout(0, 15));
		this.add(p1, BorderLayout.NORTH);
		this.add(recScrollPane, BorderLayout.CENTER);
		this.add(amdJPanel, BorderLayout.SOUTH);
		this.validate();
	}

	public void actionPerformed(ActionEvent ae) {

		if (ae.getSource() == amdJPanel.getAddButton()) {// 点击了"增加记录"按钮
			if (amdJPanel.getModifyButton().getActionCommand().equals("确认修改")) {// 在点击了"修改记录"按钮后没有在修改完记录后按下确认修改，则把该按钮的文本重新置为"修改记录"
				amdJPanel.getModifyButton().setText("修改记录");
			}
			GoodBuy goodBuy = getGoodBuyRecordDataIn();
			if (goodBuy == null) {
				return;
			}
			GoodBuyOperate goodBuyOperate = new GoodBuyOperate();
			goodBuyOperate.insertToDB(goodBuy);// 把记录插入到数据库中
			getAllRecords();// 刷新页面
		}
		if (ae.getSource() == amdJPanel.getModifyButton()) {// 点击了"修改记录"按钮
			if (amdJPanel.getModifyButton().getActionCommand().equals("修改记录")) {
				idModified = (String) JOptionPane.showInputDialog(null,
						"请您选择要修改的货品ID!", "", JOptionPane.INFORMATION_MESSAGE,
						null, goodBuyIDs, goodBuyIDs[0]);
				if (idModified == null
						|| (idModified != null && idModified.trim().equals(""))) {
					return;
				}
				GoodBuy goodBuy = new GoodBuy();
				goodBuy.setID(Integer.valueOf(idModified));
				GoodBuyOperate goodBuyOperate = new GoodBuyOperate();
				HashMap valuesGet = goodBuyOperate.selectFromDB(goodBuy);
				Set keySet = valuesGet.keySet();
				Iterator it = keySet.iterator();
				GoodBuy goodBuyGet = null;
				while (it.hasNext()) {
					goodBuyGet = (GoodBuy) valuesGet.get(it.next());
				}
				if (goodBuyGet != null) {
					goodTypeBox.setSelectedItem(goodBuyGet
							.getProperty("typeName"));
					goodNameBox.setSelectedItem(goodBuyGet
							.getProperty("goodName"));
					numberBuyTF.setText(String.valueOf(goodBuyGet
							.getNumber_Buy()));
					numberBuyOld = goodBuyGet.getNumber_Buy();// 修改前的进货数量
					timeBuyTF.setText(goodBuyGet.getDate_Buy());
				}
				amdJPanel.getModifyButton().setText("确认修改");
				return;
			}
			if (amdJPanel.getModifyButton().getActionCommand().equals("确认修改")) {// 用户确认修改
				GoodBuy goodBuy = getGoodBuyRecordDataIn();
				goodBuy.setID(Integer.valueOf(idModified));// 被修改的记录的id
				goodBuy.setProperty("difference", goodBuy.getNumber_Buy()
						- numberBuyOld);// 修改前后的进货量的大小差别
				GoodBuyOperate goodBuyOperate = new GoodBuyOperate();
				goodBuyOperate.modifyToDB(goodBuy);// 执行修改
				getAllRecords();// 刷新记录显示界面
				amdJPanel.getModifyButton().setText("修改记录");
			}
		}
		if (ae.getSource() == amdJPanel.getDeleteButton()) {// 点击了"删除记录"按钮
			if (amdJPanel.getModifyButton().getActionCommand().equals("确认修改")) {// 在点击了"修改记录"按钮后没有在修改完记录后按下确认修改，则把该按钮的文本重新置为"修改记录"
				amdJPanel.getModifyButton().setText("修改记录");
			}
			String goodBuyID = (String) JOptionPane.showInputDialog(null,
					"请您选择要删除的货品ID!", "", JOptionPane.INFORMATION_MESSAGE, null,
					goodBuyIDs, goodBuyIDs[0]);
			if (goodBuyID == null) {
				return;
			}
			int confirm = JOptionPane.showConfirmDialog(null, "您真的确认删除吗?", "",
					JOptionPane.INFORMATION_MESSAGE);
			if (confirm == JOptionPane.YES_OPTION) {
				GoodBuy goodBuy = new GoodBuy();
				goodBuy.setID(Integer.valueOf(goodBuyID));
				GoodBuyOperate goodBuyOperate = new GoodBuyOperate();
				GoodBuy goodBuyNew = null;
				HashMap valuesGet = goodBuyOperate.selectFromDB(goodBuy);
				Set keySet = valuesGet.keySet();
				Iterator it = keySet.iterator();
				while (it.hasNext()) {
					goodBuyNew = (GoodBuy) valuesGet.get(it.next());
				}
				goodBuyOperate.deleteFromDB(goodBuyNew);
				getAllRecords();// 刷新记录显示界面
			}
		}
	}

	public void itemStateChanged(ItemEvent ie) {
		if (ie.getSource() == goodTypeBox) {
			int index = goodTypeBox.getSelectedIndex();
			if (index == -1) {// 没有选择
				return;
			}
			Good good = new Good();
			good.setTypeID(Integer.valueOf(typeIDs[index]));
			GoodOperate goodOperate = new GoodOperate();
			ArrayList valuesGet = goodOperate.selectFromDB(good);// 从数据库中查询所有该类型的记录
			int total = valuesGet.size();// total为记录总数变量
			goodIDs = new String[total];
			total = 0;// 计数重新置零
			Iterator it = valuesGet.iterator();
			for (int i = 0; i < valuesGet.size(); i++) {
				Good goodTemp = (Good) valuesGet.get(i);
				goodIDs[total++] = String.valueOf(goodTemp.getID());
				goodNameBox.addItem(goodTemp.getGoodName());
			}
			goodNameBox.setSelectedIndex(-1);// 初始状态为空
		}
	}

	private GoodBuy getGoodBuyRecordDataIn() {// 从货品录入录入窗口中读取货品记录数据
		int index = goodNameBox.getSelectedIndex();
		if (index == -1) {
			JOptionPane.showMessageDialog(null, "进货的货品不能为空!", "",
					JOptionPane.INFORMATION_MESSAGE);
			return null;
		}
		int numberBuy = -1;
		try {
			numberBuy = Integer.valueOf(numberBuyTF.getText().trim());
			if (numberBuy <= 0) {
				JOptionPane.showMessageDialog(null, "进货数量必须为大于零的整数!", "",
						JOptionPane.INFORMATION_MESSAGE);
				return null;
			}
		} catch (NumberFormatException nfe) {
			JOptionPane.showMessageDialog(null, "进货数量必须大于零的整数!", "",
					JOptionPane.INFORMATION_MESSAGE);
			return null;
		}
		String dateGet = getD.getDate(timeBuyTF.getText().trim());
		if (dateGet == null) {
			JOptionPane.showMessageDialog(null, "进货时间必须为如2008-2-17的格式!", "",
					JOptionPane.INFORMATION_MESSAGE);
			return null;
		}
		GoodBuy goodBuy = new GoodBuy();
		goodBuy.setGood_ID(Integer.valueOf(goodIDs[index]));
		goodBuy.setNumber_Buy(numberBuy);
		goodBuy.setDate_Buy(dateGet);
		return goodBuy;
	}
}