C + + as client side
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Copy Code code as follows:
Client.cpp:Defines the entry point for the console application.
//
#include "stdafx.h"
#include
#pragma comment (lib, "Ws2_32.lib")
#define MAX_BUF_SIZE 1024
#define Port_number 12581
int _tmain (int argc, _tchar* argv[])
{
Wsadata Wsadata;
WORD dwsockversion = Makeword (2,2);
if (0!= WSAStartup (dwsockversion,&wsadata))//negotiated version number
{
printf ("Arrange Version failure");
return-1;
}
SOCKET Nsocket;
Nsocket = socket (af_inet, sock_stream, ipproto_tcp); Creating a TCP Socket
if (Invalid_socket = = Nsocket)
{
printf ("Invalid socket");
WSACleanup ();
return-1;
}
Sockaddr_in sa;
sa.sin_family = af_inet;
SA.SIN_ADDR.S_ADDR = inet_addr ("127.0.0.1");
Sa.sin_port = htons (port_number);
if (0!= Connect (nsocket, (const SOCKADDR *) &sa, sizeof (SA))
return-1;
Char Buf[max_buf_size] = {0};
Char Tmp[max_buf_size] = {0};
strcpy (TMP, "This is client!");
int nsend = Send (Nsocket, TMP, (int) strlen (TMP), 0);
int nrecv = 0;
NRECV = recv (Nsocket, buf, max_buf_size, 0);
if (Nrecv > 0)
{
printf ("%s\n", buf);
}
Closesocket (Nsocket);
WSACleanup ();
return 0;
}
Android emulator, Java as serve end
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Copy Code code as follows:
Package com. Android.sockettest;
Import Java.io.DataInputStream;
Import Java.io.DataOutputStream;
Import java.net.InetAddress;
Import Java.net.ServerSocket;
Import Java.net.Socket;
Import android.app.Activity;
Import Android.os.Bundle;
public class Sockettest extends activity {
/** called the activity is a. */
@Override
public void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.main);
Startacceptsocket ();
}
private void Startacceptsocket ()
{
Try
{
Short nport = 31012;
ServerSocket m_pserversocket = new ServerSocket (nport); Initialize socket
Socket paccsocket = m_pserversocket.accept (); Accept blocking Waiting
New Runningthread (Paccsocket). Start (); Create a new thread to send and receive data
}catch (Exception e)
{
E.printstacktrace ();
}
}
public class Runningthread extends Thread
{
Private Socket msocket = null;
Runningthread (Socket s)
{
This.msocket = s;
}
public void Run ()
{
byte [] precbyte = new byte[1024];
String ssend = "Hello client! ' Is Server ';
byte [] psendbyte = new byte[1024];
Psendbyte = Ssend.getbytes ();
while (true)
{
Try
{
DataInputStream sread = new DataInputStream (Msocket.getinputstream ()); Read
int nrec = Sread.read (precbyte);
if (Nrec > 0)
{
SYSTEM.OUT.PRINTLN ("Receive client message success! ");
DataOutputStream swrite = new DataOutputStream (Msocket.getoutputstream ());
Swrite.write (Psendbyte); Send
Break
}
}catch (Exception e)
{
E.printstacktrace ();
}
}
}
}
}
The Android emulator uses the IP address "127.0.0.1"; using the PC's port number, you must use the tools used by the Android SDK to perform a port mapping before the emulator TCP connection is debugged. As shown in the figure. Even with the tools in the Sdk Abd tool, run e:\\install\\android\\android\\android-sdk-windwows\\tools\\adb forward in the cmd window tcp:12581 tcp:31012 "The previous directory is the directory where the Android SDK Tools are located. Depending on the circumstances of the machine.
