searscoreinfobycournamehandler.java

在本系统中

//可以按照课程编号、课程名称、教师编号查询成绩信息。
//显示的成绩信息包括：学生姓名、班级名称、课程名称、教师姓名、成绩、备注六个数据项。




//按课程编号查询成绩信息



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.*;


public class SearScoreInfoByCourNameHandler extends JInternalFrame
{
	private JTable table;

	private SearScoreInfoByCourName searScoreInfoByCourName;
	private JComboBox comboBox;

	public SearScoreInfoByCourNameHandler(SearScoreInfoByCourName searScoreInfByCourName)  //,String Id
	{
		this.searScoreInfoByCourName=searScoreInfByCourName;
		comboBox=searScoreInfoByCourName.getComboBox();
		
		String sql1="select * from courseInfo";
		CourseInfoDAO courseInfoDAO=new CourseInfoDAO();
		ArrayList courlist=courseInfoDAO.excuteQuery(sql1);
		CourseInfoBean courseInfoBean=null;
		
		for(int i=0;i<courlist.size();i++)
		{
			courseInfoBean=(CourseInfoBean)courlist.get(i);
			comboBox.addItem(courseInfoBean.getCourseName());		
		}		
		
		searScoreInfoByCourName.getButtonsPanel().getButton(0).addActionListener
		(
			new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{	
					String[] columnNames={"学生姓名","班级名称","课程名称","教师姓名","成绩","备注"};
					DefaultTableModel tableModel=new DefaultTableModel(columnNames,0);	
					
					int flag=0;				
					
					String sql1="select * from courseInfo";
					CourseInfoDAO courseInfoDAO=new CourseInfoDAO();
					ArrayList courlist=courseInfoDAO.excuteQuery(sql1);
					CourseInfoBean courseInfoBean=null;
					
					for(int n=0;n<courlist.size();n++)
					{
						courseInfoBean=(CourseInfoBean)courlist.get(n);
						if(courseInfoBean.getCourseName().trim().equals(comboBox.getSelectedItem().toString().trim()))
						{
							String sql2="select * from courseScoreInfo";
							CourseScoreInfoDAO courseScoreInfoDAO=new CourseScoreInfoDAO();
							ArrayList courScolist=courseScoreInfoDAO.excuteQuery(sql2);
							CourseScoreInfoBean courseScoreInfoBean=null;
							
							for(int i=0;i<courScolist.size();i++)
							{
								courseScoreInfoBean=(CourseScoreInfoBean)courScolist.get(i);
								if(courseScoreInfoBean.getCourseID().trim().equals(courseInfoBean.getCourseID()))
								{
									String sql3="select * from stuInfo";
									StuInfoDAO stuInfoDAO=new StuInfoDAO();
									ArrayList stulist=stuInfoDAO.excuteQuery(sql3);
									StuInfoBean stuInfoBean=null;
									
									for(int j=0;j<stulist.size();j++)
									{
										stuInfoBean=(StuInfoBean)stulist.get(j);
										if(stuInfoBean.getStuID().trim().equals(courseScoreInfoBean.getStuID().trim()))
										{											
											String sql4="select * from classInfo";
											ClassInfoDAO classInfoDAO=new ClassInfoDAO();
											ArrayList classlist=classInfoDAO.excuteQuery(sql4);
											ClassInfoBean classInfoBean=null;
											
											for(int m=0;m<classlist.size();m++)
											{
												classInfoBean=(ClassInfoBean)classlist.get(m);
												if(classInfoBean.getMajorID().trim().equals(courseInfoBean.getMajorID().trim()))
												{
													String sql5="select * from teaInfo";
													TeaInfoDAO teaInfoDAO=new TeaInfoDAO();
													ArrayList tealist=teaInfoDAO.excuteQuery(sql5);
													TeaInfoBean teaInfoBean=null;
												
													for(int k=0;k<tealist.size();k++)
													{
														teaInfoBean=(TeaInfoBean)tealist.get(k);
														if(teaInfoBean.getTeaID().trim().equals(courseScoreInfoBean.getTeaID()))
														{
															String[] object={stuInfoBean.getStuName(),classInfoBean.getClassName(),courseInfoBean.getCourseName(),teaInfoBean.getTeaName(),courseScoreInfoBean.getScore(),courseScoreInfoBean.getOther()
															};
															tableModel.addRow(object);	
															flag=1;	
														}
													}
													
												}
											}
										}
									}
								}
							}
						}
					}
				
					if(flag==0)
					{
						JOptionPane.showMessageDialog(null,"该课程还没有登记成绩!");
					}
					
					if(flag==1)
					{
						table=new JTable(tableModel);
				
						JScrollPane scrollPanel=new JScrollPane(table,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
						searScoreInfoByCourName.add(scrollPanel,BorderLayout.CENTER);
						searScoreInfoByCourName.setSize(450,451);	
					}
				
								
				}
			
			}
		);	
		
		searScoreInfoByCourName.getButtonsPanel().getButton(1).addActionListener
		(
			new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					searScoreInfoByCourName.setVisible(false);	
				}
			}
		);	
	}
}