发送和接收TCP套接字android客户端

Question

我编写了C＃客户端-服务器应用程序，服务器正在使用socket.send（byte []）发送数据，并使用socket.receive（byte []）进行接收，现在我想从android发送和接收，这对android来说是全新的。

我感谢任何形式的帮助。

Answer 1

//client side        
        Socket sendChannel=new Socket("localhost", 12345);
        OutputStream writer=sendChannel.getOutputStream();
        writer.write(new byte[]{1});
        writer.flush();

        InputStream reader=sendChannel.getInputStream();
        byte array[]=new byte[1];
        int i=reader.read(array);

//server side
        ServerSocket s=new ServerSocket(12345);
        Socket receiveChannel = s.accept();

        OutputStream writerServer=receiveChannel.getOutputStream();
        writer.write(new byte[]{1});
        writer.flush();

        InputStream readerServer=receiveChannel.getInputStream();
        byte array2[]=new byte[1];
        int i2=reader.read(array);

Answer 2

您可以使用TCP套接字和输入流从android应用程序中的主应用程序线程中的单独线程中读取数据，如下所示：

// Start a thread
new Thread(new Runnable() {
 @Override
 public void run() {
 // Open a socket to the server
 Socket socket = new Socket("192.168.1.1", 80);
 // Get the stream from which to read data from
 // the server
 InputStream is = socket.getInputStream();
 // Buffer the input stream
 BufferedInputStream bis = new BufferedInputStream(is);
 // Create a buffer in which to store the data
 byte[] buffer = new byte[1024];
 // Read in 8 bytes into the first 8 bytes in buffer
 int countBytesRead = bis.read(buffer, 0, 8);
 // Do something with the data

 // Get the output stream from the socket to write data back to the server
 OutputStream os = socket.getOutputStream();
 BufferedOutputStream bos = new BufferedOutputStream(os);
 // Write the same 8 bytes at the beginning of the buffer back to the server
 bos.write(buffer, 0, 8);
 // Flush the data in the socket to the server
 bos.flush();
 // Close the socket
 socket.close();
}
});

如果要读取多字节值，例如短裤或整数（DataInputStream），则可以将输入流包装为其他各种类型的流。 这些将负责从网络端到客户端的本地端的转换。

您可以从套接字获取输出流，以将数据写回到服务器。

希望这可以帮助。