courseinfo.java

针对数据库操作制作的一个学生管理系统

package Cstudent;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;

/**
 * 课程信息综合管理类
 * 提供主界面，供其他类继承
 */
public class CourseInfo extends JFrame implements ActionListener{
	
	Container contentPane;//申明一个容器
	JPanel centerPanel = new JPanel();
	JPanel upPanel = new JPanel();
	JPanel downPanel = new JPanel();

	//框架的大小
	Dimension faceSize = new Dimension(800, 500);

	JLabel jLabel1 = new JLabel();
	JLabel jLabel2 = new JLabel();
	JLabel jLabel3 = new JLabel();
	JLabel jLabel4 = new JLabel();
	

	JTextField Cno = new JTextField(15);
	JTextField Cname = new JTextField(15);
	JTextField Cpno= new JTextField(15);
	JTextField Ccredit = new JTextField(15);
	
	JButton searchInfo = new JButton();
	JButton addInfo = new JButton();
	JButton modifyInfo = new JButton();
	JButton deleteInfo = new JButton();
	JButton clearInfo = new JButton();
	JButton saveInfo = new JButton();
	JButton eixtInfo = new JButton();
	
	JButton jBSee = new JButton();
	JButton jBSearch = new JButton();
	JButton jBExit = new JButton();
	JButton jBSum = new JButton();
	JButton jBGrade = new JButton();


	GridBagLayout girdBag = new GridBagLayout();
	GridBagConstraints girdBagCon;
	public CourseInfo() {
		this.setSize(faceSize);
		
		try	{
			Init();
		}
		catch(Exception	e) {
			e.printStackTrace();
		}
	}

	public void Init() throws Exception {
		contentPane = this.getContentPane();
		contentPane.setLayout(new BorderLayout());

		//中部面板的布局
		centerPanel.setLayout(girdBag);

		jLabel1.setText("课程编码：");
		jLabel1.setFont(new Font("Dialog",0,12));
		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 0;
		girdBagCon.gridy = 0;
		girdBagCon.insets = new Insets(10,10,10,1);
		girdBag.setConstraints(jLabel1,girdBagCon);
		centerPanel.add(jLabel1);

		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 1;
		girdBagCon.gridy = 0;
		girdBagCon.insets = new Insets(10,1,10,15);
		girdBag.setConstraints(Cno,girdBagCon);
		centerPanel.add(Cno);

		jLabel2.setText("课程名称：");
		jLabel2.setFont(new Font("Dialog",0,12));
		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 2;
		girdBagCon.gridy = 0;
		girdBagCon.insets = new Insets(10,15,10,1);
		girdBag.setConstraints(jLabel2,girdBagCon);
		centerPanel.add(jLabel2);

		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 3;
		girdBagCon.gridy = 0;
		girdBagCon.insets = new Insets(10,1,10,10);
		girdBag.setConstraints(Cname,girdBagCon);
		centerPanel.add(Cname);

		jLabel3.setText("先修课程：");
		jLabel3.setFont(new Font("Dialog",0,12));
		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 0;
		girdBagCon.gridy = 1;
		girdBagCon.insets = new Insets(10,10,10,1);
		girdBag.setConstraints(jLabel3,girdBagCon);
		centerPanel.add(jLabel3);

		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 1;
		girdBagCon.gridy = 1;
		girdBagCon.insets = new Insets(10,1,10,15);
		girdBag.setConstraints(Cpno,girdBagCon);
		centerPanel.add(Cpno);

		jLabel4.setText("课程学分：");
		jLabel4.setFont(new Font("Dialog",0,12));
		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 2;
		girdBagCon.gridy = 1;
		girdBagCon.insets = new Insets(10,15,10,1);
		girdBag.setConstraints(jLabel4,girdBagCon);
		centerPanel.add(jLabel4);

		girdBagCon = new GridBagConstraints();
		girdBagCon.gridx = 3;
		girdBagCon.gridy = 1;
		girdBagCon.insets = new Insets(10,1,10,10);
		girdBag.setConstraints(Ccredit,girdBagCon);
		centerPanel.add(Ccredit);
		
		contentPane.add(centerPanel,BorderLayout.CENTER);
	}

		

	/**
	 * 下部面板的布局
	 */
	public void downInit(){
		searchInfo.setText("查询");
		searchInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(searchInfo);
		addInfo.setText("增加");
		addInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(addInfo);
		modifyInfo.setText("修改");
		modifyInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(modifyInfo);
		deleteInfo.setText("删除");
		deleteInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(deleteInfo);
		saveInfo.setText("保存");
		saveInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(saveInfo);
		clearInfo.setText("清空");
		clearInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(clearInfo);
		eixtInfo.setText("退出");
		eixtInfo.setFont(new Font("Dialog",0,12));
		downPanel.add(eixtInfo);

		contentPane.add(downPanel,BorderLayout.SOUTH);

		//添加事件侦听
		searchInfo.addActionListener(this);
		addInfo.addActionListener(this);
		modifyInfo.addActionListener(this);
		deleteInfo.addActionListener(this);
		saveInfo.addActionListener(this);
		clearInfo.addActionListener(this);
		eixtInfo.addActionListener(this);
		
		modifyInfo.setEnabled(false);
		deleteInfo.setEnabled(false);
		saveInfo.setEnabled(false);
		clearInfo.setEnabled(false);
		

	}

	/**
	 * 事件处理
	 */
	public void actionPerformed(ActionEvent e) {
		Object obj = e.getSource();
		if (obj == searchInfo) { //查询
		}
		else if (obj == addInfo) { //增加
		}
		else if (obj == modifyInfo) { //修改
		}
		else if (obj == deleteInfo) { //删除
		}
		else if (obj == saveInfo) { //保存	
		}
		else if (obj == clearInfo) { //清空
		}
		else if (obj == eixtInfo) { //退出
			this.dispose();
		}
	}

	/**
	 * 将文本框清空
	 */
	void setNull(){
		Cno.setText(null);
		Cname.setText(null);
		Cpno.setText(null);
		Ccredit.setText(null);
		
	}

	
}