CAsysncSocket 之--tcp工具--AsyncSocket 用法

来源：互联网发布：雅虎奇摩输入法 mac 编辑：程序博客网时间：2024/06/15 09:58

============================================================

博文原创，转载请声明出处

电子咖啡(原id蓝岩)

============================================================

详解iPhone 下AsyncSocket网络库编程是本文要介绍的内容，iphone的标准推荐CFNetwork C库编程.但是编程比较烦躁。在其它OS往往用类来封装的对Socket函数的处理。比如MFC的CAsysncSocket.在iphone也有类似于开源项目.cocoa AsyncSocket库

官方网站:http://code.google.com/p/cocoaasyncsocket/

这里只上例子，自己在项目中使用的，绝对能使用，如果有疑问，欢迎留言讨论。

----------------

注意，CAsysncSocket已经将tcp、udp的连接异步化处理，所以你只管在主线程调用即可

将AsyncSocket.h AsyncSocket.m 导入到你的工程中，

在自己建立的util中，加入一下代码

#pragma mark tcp- (void) connectToHost:(NSString*)host port:(int)port {    socket = [[AsyncSocket alloc] initWithDelegate:self]; //设置回调的delegate    //TODO 这里需要在退出局域网模式下断开    [socket disconnect];    //断开tcp连接//    socket    NSLog(@"tcp connecting to host:%@,port:%d",host,port);    @try {        [socket connectToHost:host onPort:port error:nil];        [socket readDataWithTimeout:-1 tag:1]; //这只超时，如果timeout为负数，则永远不超时    }    @catch (NSException *exception) { //异常处理        NSLog(@"connect exception %@,%@", [exception name], [exception description]);    }}//相应的回调函数- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port{    NSLog(@"did connect to host %@:%d", host, port);}- (void)sendMessage:(NSString*)msg {    NSLog(@"tcp send msg:%@",  msg);    [socket readDataWithTimeout:SOCKET_TIMEOUT tag:1];    [socket writeData:[msg dataUsingEncoding:NSUTF8StringEncoding] withTimeout:SOCKET_TIMEOUT tag:1];}- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag{    NSString* message = [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]autorelease];    NSLog(@"%f receive ReadData is: %@",[[NSDate date] timeIntervalSince1970],message);   }-(NSTimeInterval)onSocket:(AsyncSocket *)sock shouldTimeoutReadWithTag:(long)tag elapsed:(NSTimeInterval)elapsed bytesDone:(NSUInteger)length{    NSLog(@"onSocket:shouldTimeout-ReadWithTag:-----------");    return 0;}-(NSTimeInterval)onSocket:(AsyncSocket *)sock shouldTimeoutWriteWithTag:(long)tag elapsed:(NSTimeInterval)elapsed bytesDone:(NSUInteger)length{    NSLog(@"onSocket:shouldTimeout-WriteWithTag:-----------");    return 0;}-(void)onSocket:(AsyncSocket *)sock didWriteDataWithTag:(long)tag{    NSLog(@"didWriteDataWithTag tag:%ld",tag);}-(void)onSocketDidDisconnect:(AsyncSocket *)sock{    NSLog(@"onSocketDidDisconnect sock:%@",sock);    [viewController onLocalDisconnect:0];    }

ok，试试吧