iOS中的socket通信，用到了AsyncSocket开源的框架，不错，挺好用的。先贴代码。
OC: (Client)
-(void)connectButtonPressed {
if (!asyncSocket){
asyncSocket =[[AsyncSocket alloc] initWithDelegate:self];
NSError *err= nil;
if(![asyncSocket connectToHost:@"192.168.1.103" onPort:25001withTimeout:10 error:&err]){
NSLog(@"Error:%@", err);
}
}
}
- (void)sendButtonPressed {
NSData*aData= [inputTextView.text dataUsingEncoding: NSUTF8StringEncoding];
[asyncSocket writeData:aData withTimeout:-1 tag:1];
}
-(void)ontime{
[asyncSocket readDataWithTimeout:-1 tag:0];
}
- (void)onSocket:(AsyncSocket *)sockdidConnectToHost:(NSString *)hostport:(UInt16)port
{
NSLog(@"onSocket:%pdidConnectToHost:%@ port:%hu", sock, host,port);
//Add timer.
timer =[NSTimer scheduledTimerWithTimeInterval:1.0 target:selfselector:@selector(ontime) userInfo:nil repeats:YES];
}
-(void)onSocket:(AsyncSocket *)sockdidReadData:(NSData *)datawithTag:(long)tag
{
NSString*aStr = [[NSString alloc] initWithData:dataencoding:NSUTF8StringEncoding];
messageTextView.text =[NSString stringWithFormat:@"%@\n Server: %@",messageTextView.text,aStr];;
[aStr release];
}
- (void)onSocket:(AsyncSocket *)sockdidSecure:(BOOL)flag
{
NSLog(@"onSocket:%pdidSecure:YES",sock);
}
- (void)onSocket:(AsyncSocket *)sockwillDisconnectWithError:(NSError *)err
{
NSLog(@"onSocket:%pwillDisconnectWithError:%@", sock,err);
[timer invalidate];
timer = nil;
}
- (void)onSocketDidDisconnect:(AsyncSocket *)sock
{
//断开连接了
NSLog(@"onSocketDidDisconnect:%p",sock);
}
-(void)onSocket:(AsyncSocket *)sockdidWriteDataWithTag:(long)tag
{
NSLog(@"thread(%@),onSocket:%pdidWriteDataWithTag:%ld",[[NSThreadcurrentThread] name],sock,tag);
}
C#: (Server)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections;
namespace SocketServer
{
publicpartial class Form1 : Form
{
private IPAddress clientIP =IPAddress.Parse("192.168.1.103");//以本机作测试
private IPEndPoint serverfulladdr;//完整终端地址
private Socket sock;
private System.Timers.Timer mytimer;
private ArrayList alsock;//当建立了多个连接时用于保存连接
public Form1()
{
InitializeComponent();
}
private void btstart_Click(object sender, EventArgs e)
{
serverfulladdr = new IPEndPoint(clientIP, 25001);//取端口号1000
//构造socket对象，套接字类型为“流套接字”，指定五元组中的协议元
sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream,ProtocolType.Tcp);
//指定五元组中的本地二元，即本地主机地址和端口号
sock.Bind(serverfulladdr);
//监听是否有连接传入，指定挂起的连接队列的最大值为20
sock.Listen(20);
alsock = new ArrayList();
//构造定时器，时间间隙为1秒，即每隔一秒执行一次accept()方法，以获取连接请求队列中//第一个挂起的连接请求
mytimer = new System.Timers.Timer(1000);
mytimer.Elapsed += newSystem.Timers.ElapsedEventHandler(mytimer_elapsed);
mytimer.Enabled = true;
}
private void mytimer_elapsed(object sender,System.Timers.ElapsedEventArgs e)
{
mytimer.Enabled = false;
//执行accept()，当挂起队列为空时将阻塞本线程，同时由于上一语句，定时器将停止，直//至有连接传入
Socket acceptsock = sock.Accept();
//将accept()产生的socket对象存入arraylist
alsock.Add(acceptsock);
//构造threading.timer对象，这将导致程序另启线程。线程将执行回调函数，该委托限制//函数参数须为object型。threading.timer构造器的第二个参数即传入回调函数的参数；第//三个参数指定调用回调函数之前的延时，取0则立即启动；最后一个参数指定调用回调函数//的时间间隔，取0则只执行一次。
System.Threading.Timer ti = new System.Threading.Timer(newSystem.Threading.TimerCallback(receivemsg), acceptsock, 0, 0);
mytimer.Enabled = true;
}
private void receivemsg(object obj)
{
Socket acceptsock = (Socket)obj;
try
{
while (true)
{
byte[] bytearray = new byte[100];
acceptsock.Receive(bytearray);//接收数据
//将字节数组转成字符串
string strrec = System.Text.Encoding.UTF8.GetString(bytearray);
if (this.rtbreceive.InvokeRequired)
{
this.rtbreceive.Invoke(new EventHandler(this.changericktextbox),new object[] { strrec, EventArgs.Empty });
}
}
}
catch (Exception ex)
{
acceptsock.Close();
MessageBox.Show("s:receive message error" + ex.Message);
}
}
private void changericktextbox(object obj, EventArgs e)
{
string s = System.Convert.ToString(obj);
this.rtbreceive.AppendText(s + Environment.NewLine);
}
private void btsend_Click(object sender, EventArgs e)
{
Socket sc = null;
byte[] bytesend =System.Text.Encoding.UTF8.GetBytes(this.txtinput.Text.ToCharArray());
try
{
//同时存在若干个客户端连接时，需要确定是哪个连接，因为我的调试都是一个连接，所以直接用0
sc = (Socket)alsock[0];
//发送数据
sc.Send(bytesend);
}
catch (Exception ex)
{
if (sc != null)
{
sc.Close();
}
MessageBox.Show("s:send message error" + ex.Message);
}
}
private void btclose_Click(object sender, EventArgs e)
{
try
{
Application.Exit();
}
catch (Exception ex)
{
MessageBox.Show("s:close socket error" + ex.Message);
}
}
}
}
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