Question

我需要将两个TCP数据包合并为一个。我写了一个套接字仿真器，它从csv文件中读取一行数据，并每秒将每行数据输出为两个99字节的二进制数据包。我现在需要编写另一个将这两个99字节数据包合并为一个198字节数据包的仿真器。

这是我到目前为止所放的内容，它基本上转发来自一个仿真器的两个99字节数据包，并将其作为两个99字节数据包中继到客户端。我尝试了几个不同的东西，但似乎无法弄清楚如何将两者合并为一个198字节的数据包。听起来很简单，但我无法绕过它，建议将不胜感激。感谢

  package PacketFuser;

    import java.io.ByteArrayOutputStream;
    import java.io.DataInputStream;
    import java.io.IOException;
    import java.net.InetAddress;
    import java.net.ServerSocket;
    import java.net.Socket;

    public class PacketFuser {

    public static void main(String args[]) throws IOException{
        //Start server
        Socket socket = null;
        final ServerSocket ss  = new ServerSocket(6666);  
        System.out.println("Waiting on connection...");
        while (ss.isBound()){
            try {
                socket = ss.accept();
                System.out.println("Connected to port: " +socket.toString());
                }
                catch (IOException e){
                }

        //Start Client Socket
        InetAddress address=InetAddress.getLocalHost();
        Socket c1=null;
        boolean client = false;

        while (client == false){
        try{
        System.out.println("waiting on Emulator");
        Thread.sleep(1000);
        c1=new Socket(address, 31982);
        client = true;
        }
        catch (IOException e){} 
        catch (InterruptedException ex) {}
        }
        System.out.println("Emulator Connected");


    //I need to figure out here how to catch two packets and merge them into one 198 byte packets here.

        DataInputStream in = new DataInputStream(s1.getInputStream());
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        int pread;
        byte[] p1 = new byte[99];

        while ((pread = in.read(p1, 0, p1.length)) != -1 ) {
        buffer.write(p1, 0, pread);
        buffer.flush();
        socket.getOutputStream().write(p1);
        }

            }
        }
    }

Answer 1

更改new byte[99]的{{1}}。

将两个99字节的TCP数据包合并为一个198字节的TCP数据包。

1 个答案: