bjsetframe.java

java开发学生管理系统

/*zysetFrame.java专业设置窗口
 *
 * @author 方景
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
public class bjsetFrame extends JFrame implements ActionListener{
    public final static int TO_INSEART=1,TO_UPDATE=2;
    int insql;
    DataBaseManager db=new DataBaseManager();
    ResultSet rs;
    JLabel labels[],label;
    JComboBox boxs[];
    JTextField fields[],field;
    JButton bt[];
    String labelNames[]={"系名称","专业名称","年级名称"};
    String tlabels[]={"班级编号","班级名称","班主任","班级人数"};
    String btn[]={"自动生成按钮","确定按钮","取消按钮"};
    String xName="",zName="",nName="",bName="",nNo="";
    int counter=1,i;
    JPanel p1,p2,p3,p4,p5,p6;
    Box box;
    /** Creates a new instance of bjsetFrame */
    public bjsetFrame(int inseartOrUpdate) {
        super("班级设置");
        insql=inseartOrUpdate;
        p1=new JPanel();
        p2=new JPanel();
        p3=new JPanel();
        p4=new JPanel();
        p5=new JPanel();
        p6=new JPanel();
        box=Box.createVerticalBox();
        p1.setLayout(new GridLayout(4,1,0,15));
        p2.setLayout(new GridLayout(4,1,0,10));
        labels=new JLabel[3];
        boxs=new JComboBox[3];
        bt=new JButton[3];
        for(int i=0;i<3;i++){
            labels[i]=new JLabel(labelNames[i]);
            p1.add(labels[i]);
            boxs[i]=new JComboBox();
            p2.add(boxs[i]);
            bt[i]=new JButton(btn[i]);
            bt[i].addActionListener(this);
        }
        try{
        rs=db.getResult("Select xName From yuanxi");
        while(rs.next()){
            boxs[0].addItem(rs.getString("xName"));   
        }
        }catch(SQLException e){
        	System.out.println("在执行数据库访问时发生了错误22!");
        	e.printStackTrace();
        }
        for(int i=0;i<3;i++){
            boxs[i].addActionListener(this);
        }
        label=new JLabel("班级数");
        field=new JTextField(6);
        p3.add(label);
        p3.add(field); 
       box.add(Box.createVerticalStrut(25));
       box.add(p3);
       box.add(Box.createVerticalStrut(25)); 
       box.add(bt[0]);
       box.add(Box.createVerticalStrut(25));
       fields=new JTextField[4];
       for(int i=0;i<4;i++){
          fields[i]=new JTextField(10);
          fields[i].setText(tlabels[i]);
          p4.add(fields[i]);
       }
       p5.add(bt[1]);
       p5.add(bt[2]);
       p6.setLayout(new BorderLayout());
       p6.add(p1,BorderLayout.WEST);
       p6.add(p2,BorderLayout.CENTER);
       p6.add(box,BorderLayout.EAST);
       Container c=getContentPane();
       c.add(p6,BorderLayout.NORTH);
       c.add(p4,BorderLayout.CENTER);
       c.add(p5,BorderLayout.SOUTH);
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
          bjsetFrame b=new bjsetFrame(bjsetFrame.TO_INSEART);
         b.pack();
         b.show();
    }
    
    public void actionPerformed(ActionEvent e) {
        if(e.getSource()==bt[2]){
	    db.closeConnection();
	    this.dispose();
         }
        else if(e.getSource()==boxs[0]){
                 xName=((String)(boxs[0].getItemAt(boxs[0].getSelectedIndex()))).trim();
                     boxs[1].removeActionListener(this);
                     boxs[1].removeAllItems();
                     try{
                        rs=db.getResult("Select zName From yuanxi y,zhuanye z where xName="+"'"+xName.trim()+"'and y.xNo=z.xNo");
                        while(rs.next()){
                            boxs[1].addItem(rs.getString("zName"));
                        }
                     }catch(SQLException ex){
        	            System.out.println("在执行数据库访问时发生了错误11!");
        	            ex.printStackTrace();
                     }
                     boxs[1].addActionListener(this);
        }
        else if(e.getSource()==boxs[1]){
                zName=((String)(boxs[1].getItemAt(boxs[1].getSelectedIndex()))).trim();
                     boxs[2].removeActionListener(this);
                     boxs[2].removeAllItems();
                     try{
                        rs=db.getResult("Select nName From zhuanye z,nianji n where zName="+"'"+zName+"'and z.zNo=n.zNo");
                        while(rs.next()){
                            boxs[2].addItem(rs.getString("nName"));
                        }
                     }catch(SQLException ex){
        	            System.out.println("在执行数据库访问时发生了错误11!");
        	            ex.printStackTrace();
                     }
                     boxs[2].addActionListener(this);
        }
        else if(e.getSource()==boxs[2]){
            nName=((String)(boxs[2].getItemAt(boxs[2].getSelectedIndex()))).trim();
                     try{
                        rs=db.getResult("Select nNo From nianji where nName="+"'"+nName+"'");
                        while(rs.next()){
                           nNo=rs.getString("nNo");
                        }
                     }catch(SQLException ex){
        	            System.out.println("在执行数据库访问时发生了错误222221!");
        	            ex.printStackTrace();
                     }
        }
        else if(e.getSource()==bt[0]){
            i=Integer.parseInt(field.getText().trim());
            fields[0].setText(nNo.trim()+1);
            fields[1].setText(zName+nName+1+"班");
            counter++;
        }
         else if(e.getSource()==bt[1]){
             if(insql==1){ 
            fields[0].setText(nNo.trim()+counter);
            fields[1].setText(zName+nName+counter+"班");
            String sql="";
            if(counter<=i){
		   try{
			String strSQL="insert into banji(bNo,bName,bManager,bRenShu,nNo) values('"+
		        fields[0].getText().trim()+"','"+
			fields[1].getText().trim()+"','"+
                        fields[2].getText().trim()+"',"+
                        fields[3].getText().trim()+",'"+
			nNo.trim()+"')";
                        System.out.println(strSQL);
		       if(db.updateSql(strSQL)){
			  JOptionPane.showMessageDialog(null,"添加信息成功！");
			  //this.dispose();
			}
			else{
			   JOptionPane.showMessageDialog(null,"添加信息失败请认真填写各项信息！");
			   //this.dispose();
			}
			 db.closeConnection();
		     }catch(Exception ex){
		     System.out.println(ex.toString());
		     }
               }
		      }   //--修改窗口功能--
	      else{
		    try{
		       String strSQL="update banji set bNo='"+
		       fields[0].getText().trim()+"',"+
		       "bName='"+fields[1].getText().trim()+"',"+
		       "bManager='"+fields[1].getText().trim()+"',"+
                       "nNo='"+nNo.trim()+
			" where bNo='"+fields[0].getText().trim()+"'";
			if(db.updateSql(strSQL)){
			    JOptionPane.showMessageDialog(null,"修改信息成功！");
			    //this.dispose();
			}
			else{
			     JOptionPane.showMessageDialog(null,"添加信息失败请认真填写各项信息！");
			    //this.dispose();
			}
			     db.closeConnection();
		    }catch(Exception ex){
			System.out.println(ex.toString());
		    }	
     
           }
        }
        

    }   
}