基于Java的GUI界面+SQL Server数据库课程信息管理系统

登陆窗口：

package 课程管理系统;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public  class LoginWindow extends JFrame{
	//标签
	private JLabel lable1;
	private JLabel lable2;
	//文本框
	private JTextField text1;
	private JTextField text2;
	//按钮
	private JButton bt1;
	private JButton bt2;  
	//构造函数
	public LoginWindow()
	{
		this.init();
		this.addComponent();
		this.addListener();
	}
	
	public void init()
	{
		this.setSize(500,400);
		this.setVisible(true);
		this.setTitle("登录界面");
		this.setLayout(null);
		this.setLocation(700, 300);
	}
	private void addComponent()
	{
		lable1 = new JLabel("用户名");
		lable1.setSize(100,70);
		lable1.setLocation(100,80);
		this.add(lable1);
		lable2 = new JLabel("密    码");
		lable2.setSize(100,70);
		lable2.setLocation(100,130);
		this.add(lable2);
		
		text1 = new JTextField();
		text1.setSize(150,30);
		text1.setLocation(160,100);
		this.add(text1);
		text2 = new JTextField();
		text2.setSize(150,30);
		text2.setLocation(160,150);
		this.add(text2);
	
		bt1 = new JButton("登录");
		bt1.setSize(70,30); 
		bt1.setLocation(140,195);
		this.add(bt1);
		bt2 = new JButton("退出");
		bt2.setSize(70,30);
		bt2.setLocation(250,195);
		this.add(bt2);
		this.setBackground(Color.blue);
		//设置单击关闭按钮时的默认操作
	    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	private void addListener()
	{
		bt1.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				if(text1.getText().equals("123")&&text2.getText().equals("123"))
				{
					new MainWindow();
				    dispose();
				}
				else
				{
					JOptionPane.showMessageDialog(null, "登陆密码错误");
				}
			}
		});
		
		bt2.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				dispose();
			}
		});

	}

public static void main(String[] args) {
	 new LoginWindow();
	}
	}

主窗口：

package 课程管理系统;

import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public   class MainWindow extends JFrame implements ActionListener {

	 JButton bt1;
	 JButton bt2;
	 JButton bt3;
	 JButton bt4;
	 JPanel panel;
	 JPanel panel2;
	 JLabel label;
	 
	
	MainWindow(){
	this.setSize(900, 700);
	this.setTitle("学生课程管理系统");
	this.setLayout(null);
	this.setLocation(400,200);
	this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	
	bt1=new JButton("查询课程");
	bt1.setSize(150, 50);
	bt1.setLocation(150, 400);
	bt1.addActionListener(this);
	bt1.setActionCommand("查询课程");

	bt2=new JButton("退选课程");
	bt2.setSize(150, 50);
	bt2.setLocation(150, 500);
	bt2.addActionListener(this);
	bt2.setActionCommand("退选课程");
	
	bt3=new JButton("添加课程");
	bt3.setSize(150, 50);
	bt3.setLocation(550, 400);
	bt3.addActionListener(this);
	bt3.setActionCommand("添加课程");
	
	bt4=new JButton("修改课程");
	bt4.setSize(150, 50);
	bt4.setLocation(550, 500);
	bt4.addActionListener(this);
	bt4.setActionCommand("修改课程");

	this.add(bt1);
    this.add(bt2);
	this.add(bt3);
	this.add(bt4);

	 panel=new JPanel();
	 panel.setLocation(100, 20);
	 panel.setLayout(null);
     panel.setBackground(Color.GRAY);
     this.add(panel);
     
     panel2=new JPanel();
     panel2.setSize(650,350);
	 panel2.setLocation(100, 20);
	 panel2.setLayout(null);
     panel2.setBackground(Color.lightGray);
     
     label=new JLabel(); 
     label.setText("欢迎登陆课程管理系统");
     label.setLocation(165,60);
     label.setSize(500, 200);
	 panel2.add(label);
	 label.setFont( (new Font("仿宋",Font.BOLD,30)));
	 this.add(panel2);   
	 panel2.setVisible(true);
	
	this.setVisible(true);
	}
	
	
      
	@Override
	public void actionPerformed(ActionEvent e) {
		
		 JButton bt=(JButton )e.getSource();
		 //移除上一个面板
		 if(bt!=null)
		 {
			 this.remove(panel2);
			 this.remove(panel);
		 }
	    if(bt.getText().equals("查询课程"))
	     {
	    	 panel=new FindCourse();
	    	 panel.setLocation(100, 20);
	    	 this.add(panel);
			 this.repaint();
		}
		
	    else {
	    	if(bt.getText().equals("添加课程"))
		{
			 panel=new AddCourse();
			 panel.setLocation(100, 20);
			 this.add(panel);
			 this.repaint();
		}   
		
	    else {
	    	if(bt.getText().equals("退选课程"))
		{
			 panel=new DeleteCourse();
			 panel.setLocation(100, 20);
			 this.add(panel);
			 this.repaint();
		}
		
	    else { 
	    	if(bt.getText().equals("修改课程"))
		{
			 panel=new UpdateCourse();
			 panel.setLocation(100, 20);
			 this.add(panel);
			 this.repaint();
		 }
	    }
	    }
	}	
	    }

	    }

添加课程面板：

package 课程管理系统;
import java.awt.Color;
import java.sql.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public  class AddCourse extends JPanel implements ActionListener{
   JLabel Namelabel;
   JLabel Typelabel;
   JLabel Teacherlabel;
   JLabel Creditlabel;
   JTextField Nametext;
   JTextField Teachertext;
   JTextField Credittext;
   JComboBox Typecom;
   JButton Addbt;
   JScrollPane scrollpane;
   JTable table;

	
    public AddCourse() {
	   this.setSize(650,350);
	   this.setLocation(100, 20);
	   this.setLayout(null);
       this.setBackground(Color.lightGray);
    
       
		Namelabel=new JLabel("请输入课程名称");
		Namelabel.setSize(100,30);
		Namelabel.setLocation(60, 20);
		
		this.add(Namelabel);
		
		Nametext=new JTextField();
		Nametext.setSize(120,30);
		Nametext.setLocation(180, 20);
		this.add(Nametext);
		
		Teacherlabel=new JLabel("请输入授课教师");
		Teacherlabel.setSize(100,30);
		Teacherlabel.setLocation(60, 60);
		this.add(Teacherlabel);
		
		Teachertext=new JTextField();
		Teachertext.setSize(120,30);
		Teachertext.setLocation(180, 60);
		this.add(Teachertext);
		
		Typelabel=new JLabel("请选择课程类型");
		Typelabel.setSize(100,30);
		Typelabel.setLocation(60, 100);
		this.add(Typelabel);
		
		Typecom=new JComboBox();
		Typecom.setSize(120,30);
		Typecom.setLocation(180, 100);
		Typecom.addItem("必修课");
		Typecom.addItem("选修课");
		this.add(Typecom);
		
		Addbt=new JButton("添加");
		Addbt.setSize(80,30);
		Addbt.setLocation(350, 80);
		this.add(Addbt);  
		Addbt.addActionListener(this);
		
		
		Creditlabel=new JLabel("请输入课程学分");
		Creditlabel.setSize(100,30);
		Creditlabel.setLocation(60, 140);
		this.add(Creditlabel);
		
		Credittext=new JTextField();
		Credittext.setSize(120,30);
		Credittext.setLocation(180, 140);
		this.add(Credittext);
		this.setVisible(true);
    }	
	

		@Override
		public void actionPerformed(ActionEvent e) {
			
			String addName=Nametext.getText();
			String addType=(String) Typecom.getSelectedItem();
			String addTeacher=Teachertext.getText();
			String addCredit=Credittext.getText();
		
	try {
		Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
		//加载对应的jdbc驱动
		String url="jdbc:sqlserver://localhost:1433; DatabaseName=StudentCourse";
		//配置连接字符串
		String user="sa";//sa超级管理员
		String password="2386180";//密码
		Connection conn=DriverManager.getConnection(url,user,password);
		//创建数据库连接对象
		Statement st=conn.createStatement();
		//创建SQL语句执行对象
     
	   String  strSQL="insert into  dbo.Table_2 values('"+addName+"','"+addType+"','"+addTeacher+"','"+addCredit+"')";
	   String  strSQL1="(Select* from  dbo.Table_2 where CourseName='"+addName+"' )";
	   
	  if(!addName.trim().equals("")&&!addTeacher.trim().equals("")&&!addCredit.trim().equals(""))
	   {
		 ResultSet rs1=st.executeQuery(strSQL1);
		 
	   if(rs1.next())	 
	    {
		   JOptionPane.showMessageDialog(null,"该课程已存在");     }
	   else {
	   int rs=st.executeUpdate(strSQL);
		  
	   if(rs==1) {
			JOptionPane.showMessageDialog(null,"课程添加成功");
		}
		else{
			JOptionPane.showMessageDialog(null,"课程添加失败");
		}
	   }
	   }
	  else
	  { JOptionPane.showMessageDialog(null,"请输入课程信息");
	  }
	   
	  
	    conn.close();
	   
		//关闭数据库连接	
	} 
	
	catch (ClassNotFoundException ex) {
		System.out.println("没有找到对应的数据库驱动类");
	}
	catch (SQLException ex) {
		System.out.println("数据库连接或者是数据库操作失败");
	}

}
		}

删除课程面板：

package 课程管理系统;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.*;
public  class DeleteCourse extends JPanel implements ActionListener{
	   JLabel Namelabel;
	   JTextField Nametext;
	   JButton Delbt;
	   JTable table;
	  
	   public DeleteCourse() {
		   
		   this.setSize(650,350);
		   this.setLocation(100, 20);
		   this.setLayout(null);
	       this.setBackground(Color.lightGray);
	    

			Namelabel=new JLabel("请输入退选课程");
			Namelabel.setSize(150,50);
			Namelabel.setLocation(100, 280);
			this.add(Namelabel);
			
			Nametext=new JTextField();
			Nametext.setSize(160,40);
			Nametext.setLocation(200, 280);
			this.add(Nametext);
			
			Delbt=new JButton("确认退选");
			Delbt.setSize(90,38);
			Delbt.setLocation(420, 280);
			this.add(Delbt); 
			Delbt.addActionListener(this);
			

	        Object[] columnTitle= {"课程名称","授课教师","课程类型","课程学分"};
	    	 //表格行对象数据
	    	Object[][] tableData= {
	    	new Object[] {"面向对象Java","必修课","张老师","3分"},
	        new Object[] {"面向对象C++","选修课","李老师","2分"},
	    	new Object[] {"微机原理与接口技术","必修课","王老师","3分"},  
	    	  };
	    	  
	    	  //创建表格
	    	 JTable  table=new JTable(tableData,columnTitle);
	    	 JScrollPane scrollpane=new JScrollPane(table);
	    	 scrollpane.setSize(550,150);
	    	 scrollpane.setLocation(60, 20);
	    	 this.add(scrollpane);
		
			this.setVisible(true);
	   }
       
	
	
		
		
			@Override
			public void actionPerformed(ActionEvent e) {
				String delName=Nametext.getText();
				
				try {
					Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
					//加载对应的jdbc驱动
					String url="jdbc:sqlserver://localhost:1433; DatabaseName=StudentCourse";
					//配置连接字符串
					String user="sa";//sa超级管理员
					String password="2386180";//密码
					Connection conn=DriverManager.getConnection(url,user,password);
					//创建数据库连接对象
					Statement st=conn.createStatement();
					//创建SQL语句执行对象
				   String strSQL="delete from  dbo.Table_2 where CourseName='"+delName+"' ";
				  
				    int rs=st.executeUpdate(strSQL);
					if(rs==1) {
						JOptionPane.showMessageDialog(null,"课程删除成功");
					}
					else{
						JOptionPane.showMessageDialog(null,"课程删除失败");
					}
				    conn.close();
				   
					//关闭数据库连接	
				} 
				catch (ClassNotFoundException ex) {
					System.out.println("没有找到对应的数据库驱动类");
				}
				catch (SQLException ex) {
					System.out.println("数据库连接或者是数据库操作失败");
}
}
}

修改课程面板:

package 课程管理系统;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
  public  class UpdateCourse extends JPanel implements ActionListener {
	  
	   JLabel Namelabel;
	   JLabel Typelabel;
	   JLabel Teacherlabel;
	   JLabel Creditlabel;
	   JTextField Nametext;
	   JTextField Teachertext;
	   JTextField Credittext;
	   JComboBox Typecom;
	   JButton Updatebt;
	   JScrollPane scrollpane;
	   JTable table;
		
	    public UpdateCourse() {
		   this.setSize(650,350);
		   this.setLocation(100, 20);
		   this.setLayout(null);
	       this.setBackground(Color.lightGray);
	      
	       
			Namelabel=new JLabel("请输入课程名称");
			Namelabel.setSize(100,30);
			Namelabel.setLocation(60, 20);
			
			this.add(Namelabel);
			
			Nametext=new JTextField();
			Nametext.setSize(120,30);
			Nametext.setLocation(180, 20);
			this.add(Nametext);
			
			Teacherlabel=new JLabel("请输入授课教师");
			Teacherlabel.setSize(100,30);
			Teacherlabel.setLocation(60, 60);
			this.add(Teacherlabel);
			
			Teachertext=new JTextField();
			Teachertext.setSize(120,30);
			Teachertext.setLocation(180, 60);
			this.add(Teachertext);
			
			Typelabel=new JLabel("请选择课程类型");
			Typelabel.setSize(100,30);
			Typelabel.setLocation(60, 100);
			this.add(Typelabel);
			
			Typecom=new JComboBox();
			Typecom.setSize(120,30);
			Typecom.setLocation(180, 100);
			Typecom.addItem("必修课");
			Typecom.addItem("选修课");
			this.add(Typecom);
			
			 Updatebt=new JButton("修改");
			 Updatebt.setSize(80,30);
			 Updatebt.setLocation(350, 80);
			 this.add( Updatebt);  
			 Updatebt.addActionListener(this);
			
			Creditlabel=new JLabel("请输入课程学分");
			Creditlabel.setSize(100,30);
			Creditlabel.setLocation(60, 140);
			this.add(Creditlabel);
			
			Credittext=new JTextField();
			Credittext.setSize(120,30);
			Credittext.setLocation(180, 140);
			this.add(Credittext);
			this.setVisible(true);
			
		  } 
	 
		@Override
		public void actionPerformed(ActionEvent e) {
			String updateName=Nametext.getText();
			String updateType=(String) Typecom.getSelectedItem();
			String updateTeacher=Teachertext.getText();
			String updateCredit=Credittext.getText();
		
	try {
		Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
		//加载对应的jdbc驱动
		String url="jdbc:sqlserver://localhost:1433; DatabaseName=StudentCourse";
		//配置连接字符串
		String user="sa";//sa超级管理员
		String password="2386180";//密码
		Connection conn=DriverManager.getConnection(url,user,password);
		//创建数据库连接对象
		Statement st=conn.createStatement();
		//创建SQL语句执行对象
	   String  strSQL1="update dbo.Table_2 set CourseType='"+updateType+"' where CourseName='"+updateName+"'";
	   String  strSQL2="update dbo.Table_2 set CourseTeacher='"+updateTeacher+"' where CourseName='"+updateName+"'";
	   String  strSQL3="update dbo.Table_2 set CourseCredit='"+updateCredit+"' where CourseName='"+updateName+"'";
	
		int rs1=st.executeUpdate(strSQL1);
		int rs2=st.executeUpdate(strSQL2);
		int rs3=st.executeUpdate(strSQL3);
		if(rs1==1&&rs2==1&&rs3==1) {
			JOptionPane.showMessageDialog(null,"课程修改成功");
		}
		else{
			JOptionPane.showMessageDialog(null,"课程修改失败");
		}
	    conn.close();
	   
		//关闭数据库连接	
	} 
	catch (ClassNotFoundException ex) {
		System.out.println("没有找到对应的数据库驱动类");
	}
	catch (SQLException ex) {
		System.out.println("数据库连接或者是数据库操作失败");
	}

}
			
		} 

查询课程面板：

package 课程管理系统;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public  class FindCourse extends JPanel implements ActionListener{
	   JLabel Inputlabel;
	   JTextField Inputtext;
	   JButton Findbt;
	   JLabel Namelabel;
	   JLabel Typelabel;
	   JLabel Teacherlabel;
	   JLabel Creditlabel;
	   JTextField Nametext;
	   JTextField Teachertext;
	   JTextField Credittext;
	   JTextField Typetext;
	 
	     public FindCourse() {
		  
	       this.setSize(650,350);
		   this.setLocation(100, 20);
		   this.setLayout(null);
	       this.setBackground(Color.lightGray);
	     
	       
	       
	        Namelabel=new JLabel("课程名称");
			Namelabel.setSize(100,30);
			Namelabel.setLocation(100, 120);
			this.add(Namelabel);
			
			Nametext=new JTextField();
			Nametext.setSize(120,30);
			Nametext.setLocation(220, 120);
			this.add(Nametext);
			
			Teacherlabel=new JLabel("授课教师");
			Teacherlabel.setSize(100,30);
			Teacherlabel.setLocation(100, 160);
			this.add(Teacherlabel);
			
			Teachertext=new JTextField();
			Teachertext.setSize(120,30);
			Teachertext.setLocation(220, 160);
			this.add(Teachertext);
			
			Typelabel=new JLabel("课程类型");
			Typelabel.setSize(100,30);
			Typelabel.setLocation(100, 200);
			this.add(Typelabel);
			
			Typetext=new JTextField();
			Typetext.setSize(120, 30);
			Typetext.setLocation(220, 200);
			this.add(Typetext);
			
			Creditlabel=new JLabel("课程学分");
			Creditlabel.setSize(100,30);
			Creditlabel.setLocation(100, 240);
			this.add(Creditlabel);
			 
			Credittext=new JTextField();
			Credittext.setSize(120, 30);
			Credittext.setLocation(220, 240);
			this.add(Credittext);
			
	       
	       Inputlabel=new JLabel("请输入课程名称");
	       Inputlabel.setSize(150,50);
	       Inputlabel.setLocation(100, 45);
			this.add(Inputlabel);
			
			Inputtext=new JTextField();
			Inputtext.setSize(160,40);
			Inputtext.setLocation(200, 45);
			this.add(Inputtext);
			
			Findbt=new JButton("查询");
			Findbt.setSize(90,38);
			Findbt.setLocation(420, 45);
			this.add(Findbt);
			Findbt.addActionListener(this);
			
			this.setVisible(true);
		  } 
	    

		@Override
		public void actionPerformed(ActionEvent e) {
			
			String inputName=Inputtext.getText();
			
	try {
		Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
		//加载对应的jdbc驱动
		String url="jdbc:sqlserver://localhost:1433; DatabaseName=StudentCourse";
		//配置连接字符串
		String user="sa";//sa超级管理员
		String password="2386180";//密码
		Connection conn=DriverManager.getConnection(url,user,password);
		//创建数据库连接对象
		Statement st=conn.createStatement();
		//创建SQL语句执行对象

	   String  strSQL="(Select* from  dbo.Table_2 where CourseName='"+inputName+"' )";
		ResultSet rs=st.executeQuery(strSQL);

		if(rs.next())
		{
			 Nametext.setText(rs.getString(1));
			 Typetext.setText(rs.getString(2));
			 Teachertext.setText(rs.getString(3));
			 Credittext.setText(rs.getString(4));
		}
		else
		{ 
			JOptionPane.showMessageDialog(null, "您查询的课程不存在，请重新输入");
		}
	    conn.close();
	   
		//关闭数据库连接	
	} 
	catch (ClassNotFoundException ex) {
		System.out.println("没有找到对应的数据库驱动类");
	}
	catch (SQLException ex) {
		System.out.println("数据库连接或者是数据库操作失败");
	}

}
			
		}