delstuinfo.java

班级管理系统

package lab.lab;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class DelStuInfo extends StuInfo {
	String sNum_str = "";

	DelStuInfo() {
		this.setTitle("删除学生信息");
		this.setResizable(false);
		sNum.setEditable(false);
		sNum.setText("请查询学号");
		sName.setEditable(false);
		sSex.setEditable(false);
		sSethnic.setEditable(false);
		sBirth.setEditable(false);
		sYear.setEditable(false);
		sMajor.setEditable(false);
		sCollege.setEditable(false);
		sHome.setEditable(false);

		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		this.setLocation((screenSize.width - 400) / 2,
				(screenSize.height - 300) / 2 + 45);
	}

	public void downInit() {
		searchInfo.setText("学号查询");
		searchInfo.setFont(new Font("Dialog", 0, 12));
		downPanel.add(searchInfo);
		deleteInfo.setText("删除");
		deleteInfo.setFont(new Font("Dialog", 0, 12));
		deleteInfo.setEnabled(false);
		downPanel.add(deleteInfo);
		clearInfo.setText("清空");
		clearInfo.setFont(new Font("Dialog", 0, 12));
		downPanel.add(clearInfo);
		exitInfo.setText("退出");
		exitInfo.setFont(new Font("Dialog", 0, 12));
		downPanel.add(exitInfo);

		searchInfo.addActionListener(this);
		deleteInfo.addActionListener(this);
		clearInfo.addActionListener(this);
		exitInfo.addActionListener(this);

		this.contentPane.add(downPanel, BorderLayout.SOUTH);
	}

	public void actionPerformed(ActionEvent e) {
		Object obj = e.getSource();
		String[] s = new String[8];
		if (obj == exitInfo) {
			this.dispose();
		} else if (obj == deleteInfo) {
			int ifdel = JOptionPane.showConfirmDialog(null, "真的要删除该信息？",
					"提示信息", JOptionPane.YES_NO_OPTION,
					JOptionPane.INFORMATION_MESSAGE);
			if (ifdel == JOptionPane.YES_OPTION) {
				StuBean deleteStu = new StuBean();
				deleteStu.stuDel(sNum_str);
				this.dispose();
				DelStuInfo dsi = new DelStuInfo();
				dsi.downInit();
				dsi.pack();
				dsi.setVisible(true);
			} else {
				return;
			}
		} else if (obj == clearInfo) {
			setNull();
			sNum.setText("请查询学号");
			deleteInfo.setEnabled(false);
		} else if (obj == searchInfo) {
			StuInfoSearchSnum siss = new StuInfoSearchSnum(this);
			siss.pack();
			siss.setVisible(true);
			try {
				sNum_str = siss.getSnum();
			} catch (Exception e1) {
				JOptionPane.showMessageDialog(null, "没有查找到该学号!");
			}
			StuBean searchStu = new StuBean();
			s = searchStu.stuSearch(sNum_str);
			if (s == null) {
				JOptionPane.showMessageDialog(null, "记录不存在!");
				sNum.setText("请查询学号");
				sName.setText("");
				sSex.setText("");
				sSethnic.setText("");
				sHome.setText("");
				sYear.setText("");
				sMajor.setText("");
				sCollege.setText("");
				sBirth.setText("");

				sName.setEditable(false);
				sSex.setEditable(false);
				sSethnic.setEditable(false);
				sHome.setEditable(false);
				sYear.setEditable(false);
				sMajor.setEditable(false);
				sCollege.setEditable(false);
				sBirth.setEditable(false);
				deleteInfo.setEnabled(false);
				return;
			} else {
				sNum.setText(sNum_str);
				sName.setText(s[0]);
				sSex.setText(s[1]);
				sSethnic.setText(s[2]);
				sHome.setText(s[3]);
				sYear.setText(s[4]);
				sMajor.setText(s[5]);
				sCollege.setText(s[6]);
				sBirth.setText(s[7]);

				sName.setEditable(false);
				sSex.setEditable(false);
				sSethnic.setEditable(false);
				sHome.setEditable(false);
				sYear.setEditable(false);
				sMajor.setEditable(false);
				sCollege.setEditable(false);
				sBirth.setEditable(false);
				deleteInfo.setEnabled(true);
			}
		}
	}

}