超時ASIHTTP請求

Question

我正在使用ASIHTTPRequest庫從我的iPhone應用程序中的服務器請求一些數據。但我不知道如何創建一個超時，以便如果服務器宕機或iPhone沒有互聯網連接的應用程序不會崩潰。

在此先感謝

編輯>>>

tt.Kilew你的代碼不工作...我張貼了一下示例代碼

NSURL *url = [NSURL URLWithString:@"A URL WITH A FORM"]; 
ASIFormDataRequest *requestPOST = [ASIFormDataRequest requestWithURL:url]; 
[requestPOST setPostValue:un forKey:@"username"]; 
[requestPOST setPostValue:pw forKey:@"password"];   
[requestPOST setPostValue:@"Login" forKey:@"submit"]; 
[requestPOST start]; 

[requestPOST setTimeOutSeconds:10]; 

NSLog(@"Fail: %@", [requestPOST failWithError:ASIRequestTimedOutError]); 

Answer 1

[request setTimeOutSeconds:10]; 

更新更多代碼：

NSURL *url = [NSURL URLWithString:@"A URL WITH A FORM"]; 
ASIFormDataRequest *requestPOST = [ASIFormDataRequest requestWithURL:url]; 
[requestPOST setPostValue:un forKey:@"username"]; 
[requestPOST setPostValue:pw forKey:@"password"];   
[requestPOST setPostValue:@"Login" forKey:@"submit"]; 
[requestPOST setTimeOutSeconds:10]; 
[requestPOST setDelegate:self] 
[requestPOST startAsynchronous]; 

失敗的處理程序：

- (void)requestFailed:(ASIHTTPRequest *)request { 
    NSError *error = [request error]; 
    if ([error isKindOfClass:[ASIRequestTimedOutError class]]) { 
     // Actions specific to timeout 
    } 
} 

成功處理程序：

- (void)requestFinished:(ASIHTTPRequest *)request 
{ 
    // Use when fetching text data 
    NSString *responseString = [request responseString]; 

    // Use when fetching binary data 
    NSData *responseData = [request responseData]; 

    // Do something with the response. 
} 

Answer 2

// Number of seconds to wait before timing out - default is 10 
NSTimeInterval timeOutSeconds; 

如果發生超時，即可免費獲贈

[self failWithError:ASIRequestTimedOutError]; 

Answer 3

我通常檢查這樣的：

- (void)requestFailed:(ASIHTTPRequest *)request 
{  
    NSString *message = NULL; 

    NSError *error = [request error]; 
    switch ([error code]) 
    { 
     case ASIRequestTimedOutErrorType: 
      message = kAlertMsgTimeoutError; 
      break; 
     case ASIConnectionFailureErrorType: 
      message = kAlertMsgConnectionFailError; 
      break; 
     case ASIAuthenticationErrorType: 
      message = kAlertMsgAuthFailError; 
      break; 
     case ASITooMuchRedirectionErrorType: 
      message = kAlertMsgTooManyRedirect; 
      break; 
     case ASIRequestCancelledErrorType: 
      message = kAlertMsgReqCancelledError; 
      break; 
     case ASIUnableToCreateRequestErrorType: 
      message = kAlertMsgUnableCreateReqError; 
      break; 
     case ASIInternalErrorWhileBuildingRequestType: 
      message = kAlertMsgUnableBuildReqError; 
      break; 
     case ASIInternalErrorWhileApplyingCredentialsType: 
      message = kAlertMsgUnableApplyCredError; 
      break; 
     case ASIFileManagementError: 
      message = kAlertMsgFileManageError; 
      break; 
     case ASIUnhandledExceptionError: 
      message = kAlertMsgUnhandledExcepError; 
      break; 
     case ASICompressionError: 
      message = kAlertMsgCompressionError; 
      break; 
     default: 
      message = kAlertMsgGenericError; 
      break; 
    } 

    if (NULL != message) 
    { 
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:kApplicationTitle 
                 message:message 
                 delegate:self 
               cancelButtonTitle:kAlertDefaultCancel 
               otherButtonTitles:nil]; 
     [alert show]; 
    } 
}