c# - Java 服务器，C# 客户端。发送数据

Question

所以，我在将数据从 C# 客户端发送到 Java 服务器时遇到问题。连接正在进行中，但我猜我在某个地方弄乱了一些东西。

这是服务器端代码

package com.chris.net;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;


public class Server implements Runnable
{
    private String serverName;
    private boolean isRunning;

private ServerSocket serverSocket;
private Socket clientSocket;

public Server(String name, int port)
{
    try 
    {
        this.serverName = name;
        this.serverSocket = new ServerSocket(port);
        this.isRunning = true;
        new Thread(this).start();
    } 
    catch (IOException e) 
    {
        e.printStackTrace();
    }
}

private BufferedReader recv;

public void run()
{
    while(isRunning)
    {
        try 
        {
            clientSocket = serverSocket.accept();
            System.out.println("Client Connected from " + clientSocket.getInetAddress().getHostAddress() + ":" + clientSocket.getPort());

            recv = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

            System.out.println("Data Recieved: " + recv.readLine());

            clientSocket.close();
        }
        catch (IOException e) 
        {
            e.printStackTrace();
        }
    }
}
}

这是客户端代码

lass TCPClient
{
    private TcpClient Client;
    private NetworkStream Stream;

    private Byte[] Data;

    public TCPClient(string address, int port)
    {
        Client = new TcpClient();
        Client.Connect(address, port);

        Stream = Client.GetStream();

        SendData("Test Data");

        while (Client.Connected)
        {

        }
    }

    public void SendData(string message)
    {
        Data = System.Text.Encoding.ASCII.GetBytes(message);
        Stream.Write(Data, 0, Data.Length);

        Console.WriteLine("Sent: {0}", message);
    }
}

服务器注册连接，客户端似乎认为它已经发送了数据，但是我无法判断是客户端没有发送数据还是服务器没有接收到数据。考虑到 Console.Writeline 只是打印出转换为字节的消息，我无法判断。

Answer 1

如果您想使用 JSON，请参阅 this关于让 Java 发送将 java 类型序列化为 JSON 的消息以及接收 C# 以 Deserealize 为 C# 类型的优秀文章。

Java 摘录:

import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import com.google.gson.Gson;

public class GuyServer {
 public static void main(String[] args)
 throws IOException {
      Gson gson = new Gson();
      ServerSocket serverSocket = new ServerSocket(16001);
      System.out.println("Listening on port 16001. " 
              + "Press enter to quit "
              + "after the next connection.");
      while (System.in.available() == 0) {
           Socket socket = serverSocket.accept();
           System.out.println("A client has connected." 
               + " Sending a new Guy down the pipe.");
           PrintWriter out =
               new PrintWriter(socket.getOutputStream(),
                   true);
           Guy guy = Guy.getRandomGuy();
           String json = gson.toJson(guy);
           out.print(json);
           out.close();
           socket.close();
       }
      System.out.println("Quitting...");
      serverSocket.close();
  }
}

C# 结束:

using System;
using System.IO;
using System.Net.Sockets;
using System.Web.Script.Serialization;

class GuyClient
{
     static void Main(string[] args)
     {
          String input;

          using (TcpClient tcpClient = 
                  new TcpClient("localhost", 16001))
          using (NetworkStream networkStream = 
                  tcpClient.GetStream())
          using (StreamReader streamReader = 
                  new StreamReader(networkStream))
          {
               input = streamReader.ReadToEnd();
           }

          Console.WriteLine("Received data: " + input + "\n");

          JavaScriptSerializer javaScriptSerializer = 
                  new JavaScriptSerializer();
          Guy bob = javaScriptSerializer
                  .Deserialize<Guy>(input) as Guy;
          Console.WriteLine(bob.ToString());
      }
}

Java 类

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Guy {
     private String name;
     public String getName() {
          return name;
      }     
 }

}

C# 可串行化类

using System;
using System.Collections.Generic;

[Serializable]
class Guy
{
     public string Name { get; set; }    
}

我对此进行了一些清理，以使其更容易理解。它不会编译，但你明白了。