examinationserver.java

用java做的试题库,好精简的. 请大家参考一下的哦.多指教的.

import java.io.*;
import java.net.*;
import java.util.*;
public class ExaminationServer
{
  public static void main(String args[])
  {
   ServerSocket server=null;
   Socket you=null;
   while(true)
   {
   try
   {
   server=new ServerSocket(6331);
   }
   catch(IOException e1)
       {
        System.out.println("正在监听");
       }
    try
    {you=server.accept();}
    catch(IOException e)
    {
     System.out.println("正在等待客户");
    }
    if(you!=null)
    {new Server_thread(you).start();}
    else
    {continue;}
   }
  }
}
class Server_thread extends Thread
{
 Socket socket=null;
 File file=null;
 DataOutputStream out=null;
 DataInputStream in=null;
 int n=0;
 String huida=null;
 PrintStream file_out=null;
 OutputStream out1=null;
 String buffer=null;
 byte b[]=new byte[100];
 String 答案=null;
 int 得分=0;
 String 考试者=null;
 Server_thread(Socket t)
 {
  socket=t;
  try
  {
   in=new DataInputStream(socket.getInputStream());
   out1=socket.getOutputStream();
   out=new DataOutputStream(out1);
  }
  catch(IOException e)
  {}
 }
 public void run()
 {
   String s=null, s1=null;
   while(true)
   {
   try
   {
    s=in.readUTF();
    if(s.startsWith("start:"))
    {
     String str=s.substring(s.indexOf(":")+1);
     BufferedReader file_in=new BufferedReader(new FileReader(str+".txt"));
     try
     {
      答案=file_in.readLine();
      答案=答案.trim();
      while((s1=file_in.readLine())!=null)
      {
      out.writeUTF(s1);
      }
      file_in.close();
     }
     catch(IOException e)
         {}
    }
    if(s.endsWith("#"))
    {
    得分=0;
     if(答案!=null)
     {
      int n=s.indexOf("#");
      int m=s.indexOf("###");
      for(int i=0;i<10;i++)
        if(s.charAt(i)==答案.charAt(i))
        {
         得分=得分+2;
        }
        for(int i=10;i<=n-1;i++)
          if(s.charAt(i)==答案.charAt(i))
          {得分=得分+4;}
        考试者=s.substring(n+1,m);
        File dir=new File("student");
        dir.mkdir();
        file =new File(dir,考试者+".txt");
        file_out=new PrintStream(new FileOutputStream(file));
        file_out.println("考试者:"+考试者);
        file_out.println("你的得分："+得分);
        file_out.println("你的答题："+s.substring(0,n));
        file_out.println("标准答案："+答案);
     }
    }
    sleep(30);
    }
    catch(InterruptedException e){}
    catch(IOException e)
    {
     System.out.println("客户离开");
     try
     {
      out.close();
      in.close();
     }
     catch(IOException e1){}
     break;
    }
   }
 }
}