连接重置Java

Question

我正在创建一个服务器-客户端程序，服务器将文件发送到客户端。但是我一直收到这个错误。顺便说一句，我还是Java新手！谢谢

package serverclient;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.net.Socket;
import java.security.spec.KeySpec;
import java.util.Random;

import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;

public class MyClient {@SuppressWarnings("deprecation")
public static void main(String srgs[])throws IOException
{
    Socket s=null;
    BufferedReader get=null;
    PrintWriter put=null;
    try
    { 
        s=new Socket("127.0.0.1",8081);
        get=new BufferedReader(new InputStreamReader(s.getInputStream()));
        put=new PrintWriter(s.getOutputStream(),true);        
    }  
    catch(Exception e)
    {
        System.exit(0);
    }
    InputStreamReader get2=new InputStreamReader(s.getInputStream());
    String u,f;
    System.out.println("Enter the file name to transfer from server:");
    DataInputStream dis=new DataInputStream(System.in);
    f=dis.readLine();
    put.println(f);
    File f1=new File ("C:/Users/Adam Girach/Documents/userid.txt"); 
    FileOutputStream  fs=new FileOutputStream(f1);

    BufferedInputStream d=new BufferedInputStream(s.getInputStream());
    BufferedOutputStream outStream = new BufferedOutputStream(new             FileOutputStream(f1));
    byte buffer[] = new byte[1024];
    int read;
    while((read = d.read(buffer))!=-1)
    {
        outStream.write(buffer, 0, read);
        outStream.flush();
    }

这是我尝试请求发送userid.txt时得到的输出。

Exception in thread "main"
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at serverclient.MyClient.main(MyClient.java: 52)

上面是客户端类的输出