java编程 object【】【】 二维数组赋值 数据问题

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;






public class serverduan {
  private static final int port=4331;
  private ServerSocket server;
  private Socket socket;
  DataInputStream in1;
  DataOutputStream out1;
  But1 but1;
  int inbut;
  public static void  main(String args[])
  {  serverduan a=new serverduan();
     System.out.println(1);
     a.kaishixuanzeanniu();
  }
 
  public serverduan(){
  System.out.println(true); }
  
  public void kaishixuanzeanniu() {

try
{    server=new ServerSocket(port);
socket=server.accept();
in1=new DataInputStream(socket.getInputStream());
out1=new DataOutputStream(socket.getOutputStream());
 
        } catch (Exception e)
{
//System.out.println("服务器连接出现问题");
} 
       while(true){
      
      try{inbut=in1.readInt();}catch (Exception e){System.out.println("按钮读入出现问题");}
      System.out.println("等待选择按钮");
              if(inbut==1)
                         {   
                                 System.out.println("按钮一的输入信号接收");
                                 but1=new But1(socket);
                                 but1.fasongshuzus();
                             }
              if(inbut==2)
                         { // Thread threadbut2=new Thread(new But2(socket));
                                System.out.println("按钮二的输入信号接收");
                                //threadbut2.start();
                             }
              if(inbut==3)
                        { // Thread threadbut3=new Thread(new But3(socket));
                              System.out.println("按钮三的输入信号接收");
                               //threadbut3.start();
                            }
                  }
   }
}




class But1 {
private Socket socket;
    Object shuzus[][];
private ObjectOutputStream outobj;
private ObjectInputStream inobj;
private Chaxun biao;
private ResultSet biaoSet;
private int lastnumber;

public But1 (Socket socket){
this.socket=socket;
System.out.println("初始化But1");
}

public void fasongshuzus(){
biao=new Chaxun();
try{biao.lianjie();}catch(Exception e){}
System.out.println("a");
try{biao.chset();}catch(Exception e){}
System.out.println("b");
try{biaoSet=biao.getRs();}catch(Exception e){}
System.out.println("c");
try{biaoSet.last();}catch(Exception e){}
try{lastnumber=biaoSet.getRow();}catch(Exception e){}
System.out.println("结果集shuzus行数 "+lastnumber);
shuzus=new Object[lastnumber][3];
int k=0;
try{biaoSet.beforeFirst();}catch(Exception e){}  //第一行前面
try{while(biaoSet.next()){
//System.out.println(biaoSet.getString(0));
System.out.println(biaoSet.getString(1));
System.out.println(biaoSet.getString(2));
System.out.println(biaoSet.getString(3));
System.out.println(biaoSet.getString(4));
shuzus [k] [0] = (biaoSet.getString(1));                       //到这里就卡死了。为什么！！！！！！！！！！！！11
    System.out.println("shuzus["+k+"]"+"[0]内容: "+biaoSet.getString(1));  //    
shuzus [k] [1] = (biaoSet.getString(2));
System.out.println("shuzus["+k+"]"+"[1]内容: "+biaoSet.getString(2));    //
shuzus [k] [2] = (biaoSet.getString(4));
System.out.println("shuzus["+k+"]"+"[2]内容: "+biaoSet.getString(4));    //
k++; }
inobj=new ObjectInputStream(socket.getInputStream());
outobj=new ObjectOutputStream(socket.getOutputStream());
outobj.writeObject(shuzus);
}catch(Exception e){}
}



}






class Chaxun{
  private String str1,str2,str3,str4;
  private ResultSet rs;
  private boolean flag;
  private PreparedStatement sqlpPreparedStatement; 
  private Statement sqlStatement;
  private Connection con;
  
  Chaxun(String str1,String str2,String str3,String str4)
  {    sqlpPreparedStatement=null;
  this.str1=str1;
  this.str2=str2;
  this.str3=str3;
  this.str4=str4;
  }
  Chaxun()
  {
  }
public void lianjie()
{ try{  
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     } catch(ClassNotFoundException e){}
  try{ 
   String str="jdbc:odbc:PIMS";
   con=DriverManager.getConnection(str, "test", "1234");
   //sqlStatement=con.createStatement();
}catch(SQLException e){}
}


public void chset()
{  try
  {String str;
    sqlStatement=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
    str="Select * From account";
    rs=sqlStatement.executeQuery(str);
    while(rs.next())
    {
    System.out.println("账号:"+rs.getString(1));
    }
  } catch (SQLException e){}
  
}


public void setre()
{  try
   {  String str;
   flag=false;
   str="INSERT INTO account(accountnumber,name,password,accountamount)"+"VALUES(?,?,?,?)";
   sqlpPreparedStatement=con.prepareStatement(str);
   sqlpPreparedStatement.setString(1,str1);
   sqlpPreparedStatement.setString(2,str2);
   sqlpPreparedStatement.setString(3,str3);
   sqlpPreparedStatement.setString(4,str4);
   sqlpPreparedStatement.execute();
   System.out.println("执行插入成功");
   flag=true;
   } catch (Exception e){}

}


public ResultSet getRs()
{  System.out.println("取得查询结果");
   return rs;
}


public boolean getflag()
{
return flag;
}




 
public void closedata()
{try
  {con.close();} catch (Exception e)
    {}
  }

}

求指导 在上面