您的位置: 首页  >  文章  >  iOS Socket第三方开源类库 AsyncSocket

iOS Socket第三方开源类库 AsyncSocket

分类: 文章 • 2024-04-29 12:39:27

假如你也是一个java程序员，而你又不是很懂Socket。

下面我的这篇文章也许能帮助你一些。

http://xiva.iteye.com/blog/993336


首先我们写好上面文章中的server端。

下面我们可以访问一下下面的地址：


http://code.google.com/p/cocoaasyncsocket/

这是一个开源框架。呵，不知道拿到自己程序中使用是否涉及侵权。

但是这句话“The CocoaAsyncSocket project is in the public domain.”是我有信心使用它们的源码，否则只能自己用c来写了，或者使用CFSocket、CFNetwork等类自己来写了。不过也无妨，应在在使用线程的情况下，我们也是可以实现的。


总之，为了开发的便捷，我使用了AsyncSocket这个类，这样可以异步通信。


建立一个基于视图的应用程序，按照http://code.google.com/p/cocoaasyncsocket/wiki/Reference_AsyncSocket

我们AsyncSocket.h和AsyncSocket.m到我们的项目中，并且导入CFNetwork.framework。这样基本准备工作就做好了。

下面提供我的应用中的代码以及界面图：

Socketdemoviewcontroller.h代码iOS Socket第三方开源类库 AsyncSocket
  1. //
  2. //SocketDemoViewController.h
  3. //SocketDemo
  4. //
  5. //Createdbyxiangxivaon10-7-10.
  6. //Copyright2010__MyCompanyName__.Allrightsreserved.
  7. //
  9. #import<UIKit/UIKit.h>
  10. #import"AsyncSocket.h"
  11. #defineSRV_CONNECTED0
  12. #defineSRV_CONNECT_SUC1
  13. #defineSRV_CONNECT_FAIL2
  14. #[email protected]"192.168.110.1"
  15. #defineHOST_PORT8080
  17. @interfaceSocketDemoViewController:UIViewController{
  19. UITextField*inputMsg;
  20. UILabel*outputMsg;
  21. AsyncSocket*client;
  22. }
  24. @property(nonatomic,retain)AsyncSocket*client;
  25. @property(nonatomic,retain)IBOutletUITextField*inputMsg;
  26. @property(nonatomic,retain)IBOutletUILabel*outputMsg;
  28. -(int)connectServer:(NSString*)hostIPport:(int)hostPort;
  29. -(void)showMessage:(NSString*)msg;
  30. -(IBAction)sendMsg;
  31. -(IBAction)reConnect;
  32. -(IBAction)textFieldDoneEditing:(id)sender;
  33. -(IBAction)backgroundTouch:(id)sender;
  35. @end

socketdemoviewcontroller.m代码iOS Socket第三方开源类库 AsyncSocket
  1. //
  2. //SocketDemoViewController.m
  3. //SocketDemo
  4. //
  5. //Createdbyxiangxivaon10-7-10.
  6. //Copyright2010__MyCompanyName__.Allrightsreserved.
  7. //
  9. #import"SocketDemoViewController.h"
  11. @implementationSocketDemoViewController
  13. @synthesizeinputMsg,outputMsg;
  14. @synthesizeclient;
  15. /*
  16. //Thedesignatedinitializer.Overridetoperformsetupthatisrequiredbeforetheviewisloaded.
  17. -(id)initWithNibName:(NSString*)nibNameOrNilbundle:(NSBundle*)nibBundleOrNil{
  18. self=[superinitWithNibName:nibNameOrNilbundle:nibBundleOrNil];
  19. if(self){
  20. //Custominitialization
  21. }
  22. returnself;
  23. }
  24. */
  26. /*
  27. //ImplementloadViewtocreateaviewhierarchyprogrammatically,withoutusinganib.
  28. -(void)loadView{
  29. }
  30. */
  34. //ImplementviewDidLoadtodoadditionalsetupafterloadingtheview,typicallyfromanib.
  35. -(void)viewDidLoad{
  36. //[superviewDidLoad];
  37. [selfconnectServer:HOST_IPport:HOST_PORT];
  38. //监听读取
  40. }
  44. //Overridetoalloworientationsotherthanthedefaultportraitorientation.
  45. -(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
  46. returnYES;
  47. }
  49. -(void)didReceiveMemoryWarning{
  50. //Releasestheviewifitdoesn'thaveasuperview.
  51. [superdidReceiveMemoryWarning];
  53. //Releaseanycacheddata,images,etcthataren'tinuse.
  54. }
  56. -(void)viewDidUnload{
  57. self.client=nil;
  58. //Releaseanyretainedsubviewsofthemainview.
  59. //e.g.self.myOutlet=nil;
  60. }
  62. -(int)connectServer:(NSString*)hostIPport:(int)hostPort{
  64. if(client==nil){
  65. client=[[AsyncSocketalloc]initWithDelegate:self];
  66. NSError*err=nil;
  67. //192.168.110.128
  68. if(![clientconnectToHost:hostIPonPort:hostPorterror:&err]){
  69. NSLog(@"%@%@",[errcode],[errlocalizedDescription]);
  71. UIAlertView*alert=[[UIAlertViewalloc]initWithTitle:[@"Connectionfailedtohost"
  72. stringByAppendingString:hostIP]
  73. message:[[[NSStringalloc]initWithFormat:@"%@",[errcode]]stringByAppendingString:[errlocalizedDescription]]
  74. delegate:self
  75. cancelButtonTitle:@"OK"
  76. otherButtonTitles:nil];
  77. [alertshow];
  78. [alertrelease];
  79. //client=nil;
  80. returnSRV_CONNECT_FAIL;
  81. }else{
  82. NSLog(@"Conectou!");
  83. returnSRV_CONNECT_SUC;
  84. }
  85. }
  86. else{
  87. [clientreadDataWithTimeout:-1tag:0];
  88. returnSRV_CONNECTED;
  89. }
  91. }
  93. -(IBAction)reConnect{
  94. intstat=[selfconnectServer:HOST_IPport:HOST_PORT];
  95. switch(stat){
  96. caseSRV_CONNECT_SUC:
  97. [selfshowMessage:@"connectsuccess"];
  98. break;
  99. caseSRV_CONNECTED:
  100. [selfshowMessage:@"It'sconnected,don'tagian"];
  101. break;
  102. default:
  103. break;
  104. }
  105. }
  107. -(IBAction)sendMsg{
  109. NSString*inputMsgStr=self.inputMsg.text;
  110. NSString*content=[inputMsgStrstringByAppendingString:@"\r\n"];
  111. NSLog(@"%a",content);
  112. NSData*data=[contentdataUsingEncoding:NSISOLatin1StringEncoding];
  113. [clientwriteData:datawithTimeout:-1tag:0];
  115. //[datarelease];
  116. //[contentrelease];
  117. //[inputMsgStrrelease];
  118. //继续监听读取
  119. //[clientreadDataWithTimeout:-1tag:0];
  120. }
  122. #pragmamark-
  123. #pragmamarkcloseKeyboard
  124. -(IBAction)textFieldDoneEditing:(id)sender{
  125. [senderresignFirstResponder];
  126. }
  128. -(IBAction)backgroundTouch:(id)sender{
  129. [inputMsgresignFirstResponder];
  130. }
  132. #pragmamarksocketuitl
  134. -(void)showMessage:(NSString*)msg{
  135. UIAlertView*alert=[[UIAlertViewalloc]initWithTitle:@"Alert!"
  136. message:msg
  137. delegate:nil
  138. cancelButtonTitle:@"OK"
  139. otherButtonTitles:nil];
  140. [alertshow];
  141. [alertrelease];
  142. }
  145. #pragmamarksocketdelegate
  147. -(void)onSocket:(AsyncSocket*)sockdidConnectToHost:(NSString*)hostport:(UInt16)port{
  148. [clientreadDataWithTimeout:-1tag:0];
  149. }
  151. -(void)onSocket:(AsyncSocket*)sockwillDisconnectWithError:(NSError*)err
  152. {
  153. NSLog(@"Error");
  154. }
  156. -(void)onSocketDidDisconnect:(AsyncSocket*)sock
  157. {
  158. NSString*[email protected]"Sorrythisconnectisfailure";
  159. [selfshowMessage:msg];
  160. [msgrelease];
  161. client=nil;
  162. }
  164. -(void)onSocketDidSecure:(AsyncSocket*)sock{
  166. }
  168. -(void)onSocket:(AsyncSocket*)sockdidReadData:(NSData*)datawithTag:(long)tag{
  170. NSString*aStr=[[NSStringalloc]initWithData:dataencoding:NSUTF8StringEncoding];
  171. NSLog(@"Havareceiveddatasis:%@",aStr);
  172. self.outputMsg.text=aStr;
  173. [aStrrelease];
  174. [clientreadDataWithTimeout:-1tag:0];
  175. }
  177. #pragmamarkdealloc
  179. -(void)dealloc{
  181. [clientrelease];
  182. [inputMsgrelease];
  183. [outputMsgrelease];
  184. [superdealloc];
  185. }
  187. @end

还是先给出我的界面吧，否则很难懂这些代码

iOS Socket第三方开源类库 AsyncSocket

这样大家满意了吧！


好了说了这么多我们还是来看看代码究竟怎么回事吧。

首先从头文件开始看吧，

1，导入头文件#import "AsyncSocket.h"，然后是一些宏

2，声明一个AsyncSocket对象，其他就是一些IBoutlet

再次我们看看视图加载，

Java代码iOS Socket第三方开源类库 AsyncSocket
  1. -(void)viewDidLoad{
  2. //[superviewDidLoad];
  3. [selfconnectServer:HOST_IPport:HOST_PORT];
  4. //监听读取
  6. }
显然我们调用了connectServer::这个方法。

在这个方法中，首先初始化我们的对象，使用代理的方式。对象显示是self。然后我们便需在我们的类中实现它的各种方法，来得到各种我们想得到的。

client = [[AsyncSocket alloc] initWithDelegate:self];


下面就是连接服务器了，

[client connectToHost:hostIP onPort:hostPort error:&err]


并且当client不为空时，我们就读取服务器的信息

[client readDataWithTimeout:-1 tag:0];

Java代码iOS Socket第三方开源类库 AsyncSocket
  1. -(void)onSocket:(AsyncSocket*)sockdidReadData:(NSData*)datawithTag:(long)tag{
  3. NSString*aStr=[[NSStringalloc]initWithData:dataencoding:NSUTF8StringEncoding];
  4. NSLog(@"Havareceiveddatasis:%@",aStr);
  5. self.outputMsg.text=aStr;
  6. [aStrrelease];
  7. [clientreadDataWithTimeout:-1tag:0];
  8. }

在这个方法中很耐人寻味，主要就是在于递归的调用。

Sendmsg代码iOS Socket第三方开源类库 AsyncSocket
  1. -(IBAction)sendMsg{
  3. NSString*inputMsgStr=self.inputMsg.text;
  4. NSString*content=[inputMsgStrstringByAppendingString:@"\r\n"];
  5. NSLog(@"%a",content);
  6. NSData*data=[contentdataUsingEncoding:NSISOLatin1StringEncoding];
  7. [clientwriteData:datawithTimeout:-1tag:0];
  8. }

我们在看看上面发送消息的代码，中的在于"\r\n"的拼接，否则在java端的程序，无法知道你发过来的信息是否结束，当然你也可以使用其他的方式来读取客户端，比如定时；但是我在java端写的server是readLine来判断的，所以需要拼接这个\r\n.


其他的代码除了asyncSocket代理外都是我们所熟悉的。

这些都是asyncsocket代理的代码iOS Socket第三方开源类库 AsyncSocket
  1. -(void)onSocket:(AsyncSocket*)sockdidConnectToHost:(NSString*)hostport:(UInt16)port{
  2. [clientreadDataWithTimeout:-1tag:0];
  3. }
  5. -(void)onSocket:(AsyncSocket*)sockwillDisconnectWithError:(NSError*)err
  6. {
  7. NSLog(@"Error");
  8. }
  10. -(void)onSocketDidDisconnect:(AsyncSocket*)sock
  11. {
  12. NSString*[email protected]"Sorrythisconnectisfailure";
  13. [selfshowMessage:msg];
  14. [msgrelease];
  15. client=nil;
  16. }
  18. -(void)onSocketDidSecure:(AsyncSocket*)sock{
  20. }
  22. -(void)onSocket:(AsyncSocket*)sockdidReadData:(NSData*)datawithTag:(long)tag{
  24. NSString*aStr=[[NSStringalloc]initWithData:dataencoding:NSUTF8StringEncoding];
  25. NSLog(@"Havareceiveddatasis:%@",aStr);
  26. self.outputMsg.text=aStr;
  27. [aStrrelease];
  28. [clientreadDataWithTimeout:-1tag:0];
  29. }

到此就结束了。

相关推荐