searteainfobymajornamehandler.java

在本系统中

package jin.handler;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import java.util.*;

import jin.dao.*;
import jin.bean.*;
import jin.view.*;
import jin.internalFrame.*;


//可以按照教师编号、教师姓名、专业名称、院系名称分别查询满足条件的教师信息，
//也可以查询所有在编教师的信息。显示的教师信息包括：教师编号、教师姓名、专业名称、院系名称四个数据项


//按照专业名称查询

public class SearTeaInfoByMajorNameHandler extends JInternalFrame
{
	private JTable table;
	
	
	private SearTeaInfoByMajorName searTeaInfoByMajorName;
	private JTextField field;	
	
	public SearTeaInfoByMajorNameHandler(SearTeaInfoByMajorName searTeaInfoByMajorNa)  //,String Id
	{
		this.searTeaInfoByMajorName=searTeaInfoByMajorNa;
		field=searTeaInfoByMajorName.getField();
	
		searTeaInfoByMajorName.getButtonsPanel().getButton(0).addActionListener
		(
			new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					String[] ccolumnNames={"教师编号","教师姓名","专业名称","院系名称"
					};
		
		
					DefaultTableModel tableModel=new DefaultTableModel(ccolumnNames,0);		
					
					String sql1="select * from majorInfo";
					
					MajorInfoDAO majorInfoDAO=new MajorInfoDAO();
					ArrayList majorlist=majorInfoDAO.excuteQuery(sql1);
					MajorInfoBean majorInfoBean=null;
					int flag=0;
					boolean BOK=false;
					for(int i=0;i<majorlist.size();i++)
					{
						majorInfoBean=(MajorInfoBean)majorlist.get(i);
						if(majorInfoBean.getMajorName().trim().equals(field.getText().trim()))
						{
							System.out.println("专业");
							String sql2="select * from teaInfo";
							TeaInfoDAO teaInfoDAO=new TeaInfoDAO();
							ArrayList teaList=teaInfoDAO.excuteQuery(sql2);
							TeaInfoBean teaInfoBean=null;
					
							for(int j=0;j<teaList.size();j++)
							{
								teaInfoBean=(TeaInfoBean)teaList.get(j);
								
								System.out.println("教师专业号"+teaInfoBean.getMajorID());
								if(teaInfoBean.getMajorID().trim().equals(majorInfoBean.getMajorID().trim()))
								{									
									String[] object={teaInfoBean.getTeaID(),teaInfoBean.getTeaName(),majorInfoBean.getMajorName(),majorInfoBean.getBelongTo()
									};									
									tableModel.addRow(object);
									BOK=true;															
								}
							}
							
							flag=1;
							break;
						}
					}					
					
					if(flag==0)
					{
						JOptionPane.showMessageDialog(null,"没有该专业!");
					}	
					
					if(BOK==false)
					{
						JOptionPane.showMessageDialog(null,"该专业没有教师!");
					}	
					
					if(BOK==true)
					{
						table=new JTable(tableModel);
					
						JScrollPane scrollPanel=new JScrollPane(table,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
						searTeaInfoByMajorName.add(scrollPanel,BorderLayout.CENTER);
						searTeaInfoByMajorName.setSize(450,451);			
					}		
							
				}
			}
		);	
		
		searTeaInfoByMajorName.getButtonsPanel().getButton(1).addActionListener
		(
			new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					searTeaInfoByMajorName.setVisible(false);
				}
			}
		);

	}

}