searallclassinfohandler.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.*;

//可以按照班级编号、班级名称、专业名称、院系名称分别查询班级信息，也可以查询所有的班级信息。
//显示的班级信息包括：班级编号、班级名称、专业名称、院系名称四个数据项。


//查询所有班级信息


public class SearAllClassInfoHandler extends JInternalFrame
{
	private JTable table;	
	
	private SearAllClassInfo searAllClassInfo;	
	
	public SearAllClassInfoHandler(SearAllClassInfo searAllClassInf)  //,String Id
	{
		this.searAllClassInfo=searAllClassInf;		
	
		
		String[] ccolumnNames={"班级编号","班级名称","专业名称","院系名称"
		};
	
		DefaultTableModel tableModel=new DefaultTableModel(ccolumnNames,0);		
		
		
		String sql1="select * from classInfo";
	
		ClassInfoDAO classInfoDAO=new ClassInfoDAO();
		ArrayList classList=classInfoDAO.excuteQuery(sql1);
		ClassInfoBean classInfoBean=null;

		for(int i=0;i<classList.size();i++)
		{
			classInfoBean=(ClassInfoBean)classList.get(i);
			
			String sql2="select * from majorInfo";
	
			MajorInfoDAO majorInfoDAO=new MajorInfoDAO();
			ArrayList majorlist=majorInfoDAO.excuteQuery(sql2);
			MajorInfoBean majorInfoBean=null;
			
			for(int k=0;k<majorlist.size();k++)
			{
				majorInfoBean=(MajorInfoBean)majorlist.get(k);
				if(majorInfoBean.getMajorID().trim().equals(classInfoBean.getMajorID().trim()) && classInfoBean.getState().trim().equals("在编"))
				{
					String[] object={classInfoBean.getClassID(),classInfoBean.getClassName(),majorInfoBean.getMajorName(),majorInfoBean.getBelongTo()
					};									
					tableModel.addRow(object);
				}
			}
	
		
		}
		
			
		table=new JTable(tableModel);
		
		JScrollPane scrollPanel=new JScrollPane(table,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
		searAllClassInfo.add(scrollPanel,BorderLayout.CENTER);
		searAllClassInfo.setSize(450,451);				
	}

}