求一个基于Java的仓库管理系统的毕业设计！

急~ 最好有开题报告，设计论文，详细代码
希望是免费的！！呵呵~~

import java.util.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import java.io.*;
class 商品 extends Panel
{String 代号,名称;int 库存;float 单价; <br/>商品(String 代号,String 名称,int 库存,float 单价) <br/>{this.代号=代号;this.名称=名称;this.库存=库存;this.单价=单价; <br/>}
}
class ShowWin extends JFrame implements ActionListener
{ Hashtable hashtable=null;
JTextField 代号文本框=new JTextField(),
名称文本框=new JTextField(),
库存文本框=new JTextField(),
单价文本框=new JTextField(),
查询文本框=new JTextField(),
查询信息文本框=new JTextField(),
删除文本框=new JTextField();
JButton b_add=new JButton("添加商品"),
b_del=new JButton("删除商品"),
b_xun=new JButton("查询商品"),
b_xiu=new JButton("修改商品"),
b_show=new JButton("显示商品清单");
JTextArea 显示区=new JTextArea(25,10);
ShowWin()
{super("仓库管理窗口"); <br/>hashtable=new Hashtable(); <br/>Container con=getContentPane(); <br/>JScrollPane pane=new JScrollPane(显示区); <br/>显示区.setEditable(false); <br/>JPanel save=new JPanel(); <br/>save.setLayout(new GridLayout(8,2)); <br/>save.add(new Label("输入代号:")); <br/>save.add(代号文本框); <br/>save.add(new Label("输入名称:")); <br/>save.add(名称文本框); <br/>save.add(new Label("输入库存:"));</pre> </div> <div class="replenish min_margin"> <dl> <dt> 补充： </dt> <dd> save.add(库存文本框); <br/>save.add(new Label("输入单价:")); <br/>save.add(单价文本框); <br/>save.add(new Label("单击添加:")); <br/>save.add(b_add); <br/>save.add(new Label("单击修改:")); <br/>save.add(b_xiu); <br/>save.add(new Label("输入查询代号:")); <br/>save.add(查询文本框); <br/>save.add(new Label("单击查询:")); <br/>save.add(b_xun); <br/>JPanel del=new JPanel(); <br/>del.setLayout(new GridLayout(2,2)); <br/>del.add(new Label("输入删除的代号:")); <br/>del.add(删除文本框); <br/>del.add(new Label("单击删除:")); <br/>del.add(b_del); <br/>JPanel show=new JPanel(); <br/>show.setLayout(new BorderLayout()); <br/>show.add(pane,BorderLayout.CENTER); <br/>show.add(b_show,BorderLayout.SOUTH); <br/>JSplitPane split_one,split_two; <br/>split_one=new JSplitPane(JSplitPane.VERTICAL_SPLIT,save,del); <br/>split_two=new <br/>JSplitPane(JSplitPane.HORIZONTAL_SPLIT,true,split_one,show); <br/>con.add(split_two,BorderLayout.CENTER); <br/>JPanel xun=new JPanel(); <br/>xun.add(new Label("所得信息:")); <br/>xun.add(查询信息文本框); <br/>xun.setLayout(new GridLayout(2,1)); <br/>con.add(xun,BorderLayout.SOUTH); <br/>b_add.addActionListener(this); </dd> </dl> <dl> <dt> 补充： </dt> <dd> b_del.addActionListener(this); <br/>b_xun.addActionListener(this); <br/>b_xiu.addActionListener(this); <br/>b_show.addActionListener(this); <br/>}
public void actionPerformed(ActionEvent e)
{if(e.getSource()==b_add) <br/>{String daihao=null,mingcheng=null;int kucun=0;float danjia=0.0f; <br/>daihao=代号文本框.getText();mingcheng=名称文本框.getText(); <br/>kucun=Integer.parseInt(库存文本框.getText()); <br/>danjia=Float.valueOf(单价文本框.getText()).floatValue(); <br/>商品 goods=new 商品(daihao,mingcheng,kucun,danjia); <br/>hashtable.put(daihao,goods); <br/>try{FileOutputStream file=new FileOutputStream("goods.txt"); <br/>ObjectOutputStream out=new ObjectOutputStream(file); <br/>out.writeObject(hashtable); out.close(); <br/>}
catch(IOException event){}
}
else if(e.getSource()==b_del)
{String daihao1=删除文本框.getText(); <br/>try{FileInputStream come_in=new FileInputStream("goods.txt"); <br/>ObjectInputStream in=new ObjectInputStream(come_in); <br/>hashtable=(Hashtable)in.readObject(); ////// <br/>in.close(); <br/>} </dd> </dl> 补充： catch(ClassNotFoundException event){}
catch(IOException event){}
商品 temp=(商品)hashtable.get(daihao1);
{hashtable.remove(daihao1);}
try{FileOutputStream file=new FileOutputStream("goods.txt"); <br/>ObjectOutputStream out =new ObjectOutputStream(file); <br/>out.writeObject(hashtable);// <br/>out.close(); <br/>}
catch(IOException event){}
}
//
else if(e.getSource()==b_xun)
{ String aa;
aa=查询文本框.getText();
查询信息文本框.setText(null);
try{FileInputStream come_in=new FileInputStream("goods.txt"); <br/>ObjectInputStream in =new ObjectInputStream(come_in); <br/>hashtable=(Hashtable)in.readObject(); //// <br/>in.close(); <br/>}
catch(ClassNotFoundException event){}
catch(IOException event){}
商品 a=(商品)hashtable.get(aa);
查询信息文本框.setText(" 代号："+a.代号+" 名称："+a.名称+" 库存："+a.库存+" 单价："+a.单价);
}
//
else if(e.getSource()==b_xiu)
{ String bb;
bb=代号文本框.getText();
try{FileInputStream come_in=new FileInputStream("goods.txt"); <br/>ObjectInputStream in=new ObjectInputStream(come_in); </dd> </dl> <dl> <dt> 补充： </dt> <dd> hashtable=(Hashtable)in.readObject(); ////// <br/>in.close(); <br/>}
catch(ClassNotFoundException event){}
catch(IOException event){}

商品 temp=(商品)hashtable.get(bb);
{hashtable.remove(bb);}
try{FileOutputStream file=new FileOutputStream("goods.txt"); <br/>ObjectOutputStream out =new ObjectOutputStream(file); <br/>out.writeObject(hashtable);// <br/>out.close(); <br/>}
catch(IOException event){}
String daihao1=null,mingcheng1=null;int kucun1=0;float danjia1=0.0f;
daihao1=代号文本框.getText();mingcheng1=名称文本框.getText();
kucun1=Integer.parseInt(库存文本框.getText());
danjia1=Float.valueOf(单价文本框.getText()).floatValue();
商品 goods1=new 商品(daihao1,mingcheng1,kucun1,danjia1);
hashtable.put(daihao1,goods1);
try{FileOutputStream file=new FileOutputStream("goods.txt"); <br/>ObjectOutputStream out=new ObjectOutputStream(file); <br/>out.writeObject(hashtable); out.close(); <br/>}
catch(IOException event){}

}
//
else if(e.getSource()==b_show)
{ 显示区.setText(null); 补充： try{FileInputStream come_in=new FileInputStream("goods.txt"); <br/>ObjectInputStream in =new ObjectInputStream(come_in); <br/>hashtable=(Hashtable)in.readObject(); //// <br/>}
catch(ClassNotFoundException event){}
catch(IOException event){}
Enumeration enum=hashtable.elements();
while(enum.hasMoreElements())
{ 商品 te=(商品)enum.nextElement();
显示区.append("商品代号:"+te.代号+" ");
显示区.append("商品名称:"+te.名称+" ");
显示区.append("商品库存:"+te.库存+" ");
显示区.append("商品单价:"+te.单价+" ");
显示区.append("\n ");
}
}
}
}
public class LinkListFour
{public static void main(String args[]) <br/>{ ShowWin win=new ShowWin(); <br/>win.setSize(400,350); <br/>win.setVisible(true); <br/>win.addWindowListener(new WindowAdapter() <br/>{public void windowClosing(WindowEvent e) <br/>{ System.exit(0);}});
}
}
终于完了！ 追问： 这里面应该没有涉及到功能吧？？ 回答： 你可以根据这个写出来呀！呵呵.

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