AsyncSocket是一个用Object-c封装好的网络通讯API，调用方便，容易实现。使用AsyncSocket可以很方便的与其它系统进行Socket通信， AsyncSocket包括TCP和UDP，通过实现委托AsyncSocketDelegate进行交互。
下面是TCP通讯
API 下载地址 :点击下载
首先,调用此API时需先引入CFNetWork.framework
然后在#import "AsyncSocket.h"就可以直接调用了
闲话不多说,上代码:
SocketServer端代码:
.h文件
@interface ViewController :UIViewController
{
AsyncSocket *listener;//监听客户端请求
//AsyncUdpSocket *udpSocket;//不需要即时连接就能通讯
NSMutableArray *connectionSockets;//当前请求连接的客户端
IBOutlet UITextView *ReceiveData;
IBOutlet UITextField *message;
}
@property (nonatomic, retain)AsyncSocket *listener;
@property (nonatomic, retain)UITextField *message;
@property (nonatomic, retain)UITextView *ReceiveData;
- (IBAction)sendMessage:(id)sender;
- (IBAction)textEndEditting:(id)sender;
.m文件
#import "ViewController.h"
#import "SocketConfig.h"
@interface ViewController ()
@end
@implementation ViewController
@synthesize listener;
@synthesize message,ReceiveData;
bool isRunning = NO;//判断当前socket是否已经开始监听socket请求
-(void) sendMessage
{
if(!isRunning)
{
NSError *error = nil;
if (![listeneracceptOnPort:_SERVER_PORT_error:&error]) {
return;
}
NSLog(@"开始监听");
isRunning = YES;
}
else
{
NSLog(@"重新监听");
[listener disconnect];
for (int i = 0; i < [connectionSocketscount]; i++) {
[[connectionSocketsobjectAtIndex:i]disconnect];
}
isRunning = FALSE;
}
}
- (IBAction)sendMessage:(id)sender
{
if(![message.textisEqual:@""])
{
[listener writeData:[message.textdataUsingEncoding:NSUTF8StringEncoding]
withTimeout:-1 tag:1];
}
else
{
UIAlertView *alertView =[[UIAlertViewalloc]initWithTitle:@"Waring"message:@"Please Input Message"delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil,nil];
[alertView show];
[alertView release];
}
}
- (IBAction)textEndEditting:(id)sender
{
[message resignFirstResponder];
}
- (void)viewDidLoad
{
ReceiveData.editable=NO;//设置TextView不可以编辑
listener=[[AsyncSocketalloc]initWithDelegate:self];
message.delegate=self;
//初始化连接socket的个数
connectionSockets=[[NSMutableArrayalloc]initWithCapacity:30];
[selfsendMessage];
[superviewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField;
{
[textField resignFirstResponder];
return YES;
}
#pragma socket委托
//连接socket出错时调用
- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err
{
NSLog(@"%@",[errdescription]);
}
//收到新的socket连接时调用
- (void)onSocket:(AsyncSocket *)sock didAcceptNewSocket:(AsyncSocket *)newSocket
{
//将连接服务的客户端记录起来,以便以后实现客户端通信时使用
[connectionSockets addObject:newSocket];
}
- (void)onSocket:(AsyncSocket *)sock didWriteDataWithTag:(long)tag
{
[sock readDataWithTimeout: -1tag: 0];
}
//与服务器建立连接时调用(连接成功)
- (void) onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port
{
//这里的host就是当前进行服务器连接的客户端ip
NSLog(@"host:%@",host);
NSString *returnMessage=@"Welcome To Socket Test Server!";
//将NSString转换成为NSData类型
NSData *data=[returnMessagedataUsingEncoding:NSUTF8StringEncoding];
//向当前连接服务器的客户端发送连接成功信息
[sock writeData:data withTimeout:-1tag:0];
}
/**
* Called when a socket has completed reading the requested data into memory.
* Not called if there is an error.
读取客户端发送来的信息(收到socket信息时调用)
**/
- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag
{
NSString *msg = [[[NSStringalloc]initWithData: dataencoding:NSUTF8StringEncoding]autorelease];
//获取当前发送消息的客户端ip
//NSLog(@"%@",sock.connectedHost);
//NSString *ClientIp=[sock connectedHost];
NSString *receviceIp=nil;
//从所有连接的客户端当中遍历要接收信息的客户端
for(int i=0;i<[connectionSocketscount];i++)
{
AsyncSocket *s=(AsyncSocket*)[connectionSocketsobjectAtIndex:i];
//这里要说明一下,在想另外一个客户端发送信息时需要指定客户端ip地址,所以在发送消息的时候,应该将ip地址一并写在消息里面,然后由服务端进行处理,我这里这是做了一个简单的Demo,有2个客户端相互发送消息
if([sock.connectedHostisEqualToString:@"10.0.73.252"])
{receviceIp=@"10.0.73.251";}
else
{receviceIp=@"10.0.73.252";}
if([s.connectedHostisEqualToString:receviceIp])
{
[s writeData:data withTimeout:-1 tag:0];
if(msg)
{
ReceiveData.text = msg;
NSLog(@"Receive Message:%@",msg);
}
else
{
NSLog(@"Error converting received data into UTF-8 String");
}
}
else
{
//如果遍历不存在,则说明客户端为进行连接
NSString *returnMes=@"对方不在线!";
NSData *datareturn=[returnMesdataUsingEncoding:NSUTF8StringEncoding];
[sock writeData:datareturn withTimeout:-1 tag:0];
}
}
}
- (void)onSocketDidDisconnect:(AsyncSocket *)sock
{
[connectionSockets removeObject:sock];
}
#pragma end Deleagte
- (void)didReceiveMemoryWarning
{
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)dealloc
{
[ReceiveData release],ReceiveData=nil;
[message release],message=nil;
[listener release];
[ReceiveData release];
[super dealloc];
}
@end
客户端代码:
h文件
#import
#import "AsyncSocket.h"
@interface ViewController :UIViewController
{
AsyncSocket *socket;
}
@property (retain, nonatomic) IBOutlet UITextField *clientIPAddress;
@property (retain, nonatomic) IBOutlet UITextView *ReceiveData;
@property (retain, nonatomic) IBOutlet UITextField *SendMessage;
@property (retain, nonatomic) IBOutlet UILabel *Status;
- (IBAction)Send:(id)sender;
- (IBAction)ConnectToSever:(id)sender;
@end
m文件
#import "ViewController.h"
#import "Config.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
_clientIPAddress.delegate=self;
[_clientIPAddress setTag:1];
_SendMessage.delegate=self;
[_SendMessage setTag:2];
_ReceiveData.editable=NO;
[superviewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void) textFieldDidBeginEditing:(UITextField *)textField
{
if([textField tag]==2)
{
[self viewUp];
}
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField;
{
[textField resignFirstResponder];
if([textField tag]==2)
{
[self viewDown];
}
return YES;
}
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
returnUIInterfaceOrientationPortrait;
}
- (void)didReceiveMemoryWarning
{
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)Send:(id)sender {
if(![_SendMessage.textisEqualToString:@""] && ![_clientIPAddress.textisEqualToString:@""])
{
NSString *message=[NSStringstringWithFormat:@"%@:%@",_clientIPAddress.text,_SendMessage.text];
if(socket==nil)
{
socket=[[AsyncSocketalloc]initWithDelegate:self];
}
//NSString *content=[message stringByAppendingString:@"\r\n"];
[socket writeData:[messagedataUsingEncoding:NSUTF8StringEncoding]withTimeout:-1tag:0];
_ReceiveData.text=[NSStringstringWithFormat:@"me:%@",_SendMessage.text];
}
else
{
UIAlertView *alert=[[UIAlertViewalloc]initWithTitle:@"Waring"message:@"Please input Message!"delegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil,nil];
[alert show];
[alert release];
}
}
- (IBAction)ConnectToSever:(id)sender {
if(socket==nil)
{
socket=[[AsyncSocketalloc]initWithDelegate:self];
NSError *error=nil;
if(![socketconnectToHost:_IP_ADDRESS_V4_onPort:_SERVER_PORT_error:&error])
{
_Status.text=@"连接服务器失败!";
}
else
{
_Status.text=@"已连接!";
}
}
else
{
_Status.text=@"已连接!";
}
}
#pragma AsyncScoket Delagate
- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port {
NSLog(@"onSocket:%p didConnectToHost:%@ port:%hu",sock,host,port);
[sock readDataWithTimeout:1tag:0];
}
- (void)onSocket:(AsyncSocket *)sock didWriteDataWithTag:(long)tag
{
[sock readDataWithTimeout: -1tag: 0];
}
- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag {
NSString* aStr = [[NSStringalloc]initWithData:dataencoding:NSUTF8StringEncoding];
self.ReceiveData.text = aStr;
[aStr release];
[socket readDataWithTimeout:-1tag:0];
}
- (void)onSocket:(AsyncSocket *)sock didSecure:(BOOL)flag
{
NSLog(@"onSocket:%p didSecure:YES", sock);
}
- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err
{
NSLog(@"onSocket:%p willDisconnectWithError:%@", sock, err);
}
- (void)onSocketDidDisconnect:(AsyncSocket *)sock
{
//断开连接了
NSLog(@"onSocketDidDisconnect:%p", sock);
NSString *msg =@"Sorry this connect is failure";
_Status.text=msg;
[msg release];
socket = nil;
}
- (void) viewUp
{
CGRect frame=self.view.frame;
frame.origin.y=frame.origin.y-215;
[UIView beginAnimations:nilcontext:nil];
[UIView setAnimationDuration:0.3f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.view.frame=frame;
[UIView commitAnimations];
}
- (void) viewDown
{
CGRect frame=self.view.frame;
frame.origin.y=frame.origin.y+215;
[UIView beginAnimations:nilcontext:nil];
[UIView setAnimationDuration:0.3f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.view.frame=frame;
[UIView commitAnimations];
}
#pragma end Delegate
- (void)dealloc {
[_ReceiveData release];
[_SendMessage release];
[_Status release];
[_clientIPAddress release];
[super dealloc];
}
Demo下载地址：客户端下载 服务端下载