IOS 用封装API AsyncSocket进行网络通信

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<AsyncSocketDelegate,UITextFieldDelegate>
 {
     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 <UIKit/UIKit.h>
 #import "AsyncSocket.h"

 @interface ViewController :UIViewController<UITextFieldDelegate>
 {
     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

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