infocontroller.java

这是学生信息管理系统的文件版本

package com.JavaSeries.Java.component;
import java.io.*;
import java.util.*;
import com.JavaSeries.Java.component.InfoModel;

public class InfoController
{
	InfoModel aj=new InfoModel();
    BufferedReader readStream;
	public InfoController()
	{
		readStream=new BufferedReader(new InputStreamReader(System.in));			
	}
	private void displayMenu()
	{
		System.out.println("");
		System.out.println("             学生信息管理系统菜       ");
		System.out.println("                                      ");
		System.out.println("     ———————————————————————————————— ");  
		System.out.println("            1，插入学生信息           ");
		System.out.println("            2，修改学生信息			  ");
		System.out.println("			3，删除学生信息           ");
		System.out.println("			4，查询学生信息初始建入学生记录       ");
		System.out.println("			5，初始建入学生记录           ");
		System.out.println("			6，储存学生信息           ");
		System.out.println("			7，退出学生信息系统       ");
		System.out.println("	                                  ");
		System.out.println("请选择（1~7）： ");
	}  
	private int readchoice()
	{
		while(true)	
		{
			int t=-1;
			try
			{
				t=Integer.parseInt(readStream.readLine());
			}
			catch(IOException e)
			{
				System.out.println("IO system doesnot work!!");
			}
			catch(NumberFormatException e)
			{
				System.out.println("wrong number format!!!");
			}
			if (t>7||t<1)
			{ 
				displayMenu();
			}
			else
			{
				return t;
			}
		}
	}		
	public void command() throws IOException
	{
		while(true)
		{
			displayMenu();
			int choice=readchoice();
			switch(choice)
			{
				case 1:insert();break;
				case 2:Update();break;
				case 3:Delete();break;
				case 4:query();break;
				case 5:load();break;
				case 6:save();break;
				case 7:return;
			}
		}
	}
	public void insert()
	{
		aj.insert(	new BufferedReader(new InputStreamReader(System.in)));
	}
	public void Update()
	{
		aj.Update( new BufferedReader(new InputStreamReader(System.in)));
	}
	public void Delete()
	{
		aj.Delete( new BufferedReader(new InputStreamReader(System.in)));
	}
	public void query()
	{
		aj.query( new BufferedReader(new InputStreamReader(System.in)));
	}
	public void load()
	{
		aj.load();
	}
	public void save()throws IOException
	{
		aj.save();
	}
}