webSocket开源框架:SocketRocket 简单的使用

需要用到webSocket,所以搜集了一下使用方法,(手动包 导入要把#import<> 改成#import“”)

git下载地址:square/SocketRocket

gitHUB 上没有看懂,就要 cocoaPod 导入了 socketRocket

webSocket开源框架:SocketRocket 简单的使用_第1张图片

导入这个包然后添加所需要的框架

webSocket开源框架:SocketRocket 简单的使用_第2张图片

导入头文件

#import"SRWebSocket.h"

代码的实现

#import

#import"SocketRocket.h"

@interfaceViewController : UIViewController

@property (nonatomic,strong)SRWebSocket

*

webSocket;

@end

#import"ViewController.h"

@interface

ViewController ()

@property (weak, nonatomic) IBOutlet UILabel

*

showTxt;

@end

@implementation

ViewController

- (void

)viewWillAppear:(BOOL)animated{

[self Reconnect];

}

- (void

)viewDidDisappear:(BOOL)animated{

//Close WebSocket

self.webSocket.delegate=

nil;

[self.webSocket close];

self.webSocket

=

nil;

}

- (void

)viewDidLoad {

[super viewDidLoad];

}

//初始化

- (void

)Reconnect{

self.webSocket.

delegate=

nil;

[self.webSocket close];

self.webSocket

= [[SRWebSocket alloc] initWithURLRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"ws://echo.websocket.org"

]]];

self.webSocket.

delegate=

self;

self.title

=@"Opening Connection..."

;

[self.webSocket open];

}

//成功连接

- (void)webSocketDidOpen:(SRWebSocket *

)webSocket {

NSLog(

@"Websocket Connected"

);

self.title

=@"Connected!"

;

}

//连接失败,打印错误信息

- (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *

)error {

NSLog(

@":( Websocket Failed With Error %@"

, error);

self.title

=@"Connection Failed! (see logs)"

;

self.webSocket

=

nil;

}

//接收服务器发送信息

- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id

)message {

NSLog(

@"Received \"%@\""

, message);

self.showTxt.text

=

message;

}

//长连接关闭

- (void)webSocket:(SRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *

)reason wasClean:(BOOL)wasClean {

NSLog(

@"WebSocket closed"

);

self.title

=@"Connection Closed! (see logs)"

;

self.webSocket

=

nil;

}

//该函数是接收服务器发送的pong消息

- (void)webSocket:(SRWebSocket *)webSocket didReceivePong:(NSData *

)pongPayload {

NSString

*reply =

[[NSString alloc] initWithData:pongPayload encoding:NSUTF8StringEncoding];

NSLog(

@"%@"

,reply);

}

- (IBAction)sendAction:(id

)sender {

[self.view endEditing:YES];

//WebSocket

if

(self.webSocket) {

[self.webSocket send:

@"test success"

];

}

}

有关这个方法需要说一下

-(void)webSocket:(SRWebSocket *)webSocket didReceivePong:(NSData *

)pongPayload{

socketPong

= socketPong +1

;

}

其中最后一个是接受pong消息的,在这里就要提一下心跳包,一般情况下建立长连接都会建立一个心跳包,用于每隔一段时间通知一次服务端,客户端还是在线,这个心跳包其实就是一个ping消息,我的理解就是建立一个定时器,每隔十秒或者十五秒向服务端发送一个ping消息,这个消息可是是空的,例如

NSData * data = [[NSData alloc]init];

[_webSocket sendPing:data];

发送过去消息以后,服务器会返回一个pong消息,这个消息是解读不了的,但是每次返回时就会调用-(void)webSocket:(SRWebSocket *)webSocket didReceivePong:(NSData *)pongPayload这个函数,如果要用到话,可以像我做的那样,直接在该函数里面统计一下收到的次数,跟发送的次数比较,如果每次发送之前,自己发送的ping消息的个数,跟收到pong消息的个数相同,那就代表一直在连接状态,但是服务器发送pong消息时候是自动发送的,服务器是看不到客户端发送的ping消息的,同理,服务端也一样,只要服务端建立有心跳连接,那么服务端也是一直在发送ping消息,客户端一直在回复pong消息,这两个消息是处理不了的,没办法解读这个歌消息体里面的内容。还有一点就是在发送ping消息的时候,如果非要想在里面加入一些参数,这个参数不能太大,太大的话,会提示发送失败

详细需要更多了解请联系本人

Demo示例(加入聊天室):

#pragma mark - SRWebSocketDelegate

- (void)Reconnect {

//webSocket

self.webSocket.delegate = nil;

[self.webSocket close];

self.webSocket = [[SRWebSocket alloc] initWithURLRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@:7272",webChatURL]]]];

self.webSocket.delegate = self;

MYLog(@"Opening Connection...");

[self.webSocket open];

}

- (void)webSocketDidOpen:(SRWebSocket *)webSocket;{

MYLog(@"Websocket Connected");

NSError *error;

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:@{@"type":@"login",@"client_name":@"QL",@"room_id":@"dududache"} options:NSJSONWritingPrettyPrinted error:&error];

NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

[webSocket sendString:jsonString error:&error];

}

- (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *)error;{

MYLog(@":( Websocket Failed With Error %@", error);

webSocket = nil;

}

- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message;{

MYLog(@"Received \"%@\"", message);

}

- (void)webSocket:(SRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean;{

MYLog(@"WebSocket closed");

webSocket = nil;

}

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