TCP套接字Java（服务器）和python（客户端）

Question

尝试通过Java服务器和python客户端发送文件。

Client.py

from socket import socket

def main():


s = socket()
s.connect(("localhost", 6030))

while True:
    f = open("archivo.txt", "rb")
    content = f.read(1024)

    while content:
        #Enviar contenido
        s.send(content + '\n')
        content = f.read(1024)

    break

# Se utiliza el caracter de código 1 para indicar
# al cliente que ya se ha enviado todo el contenido.
try:
    s.send(chr(1))
except TypeError:
    # Compatibilidad con Python 3.
    s.send(bytes(chr(1), "utf-8"))

# Cerrar conexión y archivo.
s.close()
f.close()
print("El archivo ha sido enviado correctamente.")

if __name__ == "__main__":
main()

Server.java

import java.net.*;
import java.io.*;

public class Server {
public static void main (String []args) {
               try { 
                      ServerSocket ss = new ServerSocket(6030); 
                      Socket s = ss.accept(); 
                      DataInputStream dis = new DataInputStream(s.getInputStream()); 
                      String k = dis.readUTF(); 
                      System.out.println("File Transferred"); 
                      FileOutputStream fos = new FileOutputStream("D:\\yo.txt"); 
                      byte[] b = k.getBytes(); 
                      fos.write(k.getBytes()); 
                     } catch (IOException ie) { 
                       ie.printStackTrace(); 
                     }
          }
}

出现此错误

java.io.EOFException
        at java.io.DataInputStream.readFully(Unknown Source)
        at java.io.DataInputStream.readUTF(Unknown Source)
        at java.io.DataInputStream.readUTF(Unknown Source)
        at Server.main(Server.java:10)

感谢任何帮助。我有python服务器和java客户端，它工作得很好。此外，它们在python客户端服务器和java客户端服务器之间也能很好地工作]

Answer 1

readUTF的一般约定是，它读取以经修改的UTF-8格式编码的Unicode字符串的表示形式。

您应该使用以byte数组作为参数的read方法。这是一个例子

    try {
        ServerSocket ss = new ServerSocket(6030);
        Socket s = ss.accept();
        DataInputStream dis = new DataInputStream(s.getInputStream());
        byte[] buffer = new byte[dis.available()];
        dis.readFully(buffer, 0, buffer.length);
        FileOutputStream fos = new FileOutputStream("c:\\Users\\username\\Desktop\\yo.txt");
        fos.write(buffer);
        fos.flush();
        fos.close();
    } catch (IOException ie) {
        ie.printStackTrace();
    }