nsurlconnection服務器需要特殊設置？

Question

我想知道服務器是否應該有特殊的設置來使用nsurlconnections？當我嘗試創建連接和身份驗證。我沒有收到任何錯誤或警告，但沒有連接。

請問任何人請在此澄清我。

感謝

編輯：這是我的代碼目前使用

- (void)viewDidLoad { 
    [super viewDidLoad]; 
    NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"loginURl"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; 
    NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; 
    [webView1 scalesPageToFit]; 
    if (theConnection) { 
     receivedData = [[NSMutableData data] retain]; 
    } else { 
     NSLog(@"Connection Failed"); 
    } 
} 

Answer 1

實現NSURLConnection的委託方法：

- (void)connectionDidFinishLoading:(NSURLConnection *)connection{ 
      NSLog("Connection successful"); 
    } 

這將記錄與連接字符串成功的控制檯。查看響應數據，您可能會發現有關其中的連接的一些信息。

Answer 2

不，你的服務器並不需要任何特殊的配置。 A NSURLConnection只使用簡單的HTTP請求。

對於身份驗證：您需要自己實現所需的委託方法進行身份驗證。此外，請檢查您是否通過SSL連接，併爲此執行所需的委託方法。

編輯：繼承自我的一個使用HTTP認證的應用程序。我發現你還需要在canAuthenticateAgainstProtectionSpace:方法中爲NSURLAuthenticationMethodHTTPBasic返回YES，否則它將無法工作。

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace { 
    return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust] || [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodHTTPBasic]; 
} 

Answer 3

這裏是項目的代碼

- (void)viewDidLoad { 
    [super viewDidLoad]; 
    parserObject = [NSXML_Parser alloc];// parser initialization 
    composerObject = [URLComposer alloc];// composer creation 
    [composerObject init_URLComposer];//composer initialization 

    [self.view addSubview:logIn_View]; 
    [webView1 loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"loginURl"]]]; 
    NSMutableData * receivedData = [NSMutableData alloc]; 
    NSLog(@"Starting the url conn"); 
    NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"loginURl"]     
               cachePolicy:NSURLRequestUseProtocolCachePolicy        
              timeoutInterval:60.0]; 
    NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; 
    [webView1 scalesPageToFit]; 
    if (theConnection) { 

     receivedData = [[NSMutableData data] retain]; 

    } else { 
     NSLog(@"Connection Failed"); 
     // Inform the user that the connection failed. 
    } 
} 

- (void)webViewDidFinishLoad:(UIWebView *)webView{ 
    NSURLRequest *urlreq = [webView request]; 
    NSURL *req = [urlreq URL]; 
    NSURL *connectingUrl = [NSURL URLWithString: @"loginURl"]; 
    Boolean error1 = [req isEqual:errorUrl];// use string size to identify the error in url 
    Boolean error2 = [req isEqual:connectingUrl]; 
    if (error1) { 
     //[self.view addSubview:displayObj]; 
    } 
    else if(error2) { 

    } 
    else { 
     NSString *session_ID = [str_Url substringFromIndex:strLen]; 
     XMLDataFromServer = [NSData dataWithContentsOfURL:[NSURL URLWithString:testing_Url_String]]; 
     [self logIn_Button_Click]; 
    } 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
    return YES; 
} 


- (void)didReceiveMemoryWarning { 
    [super didReceiveMemoryWarning]; 
} 

- (void)viewDidUnload { 

} 


- (void)dealloc { 
    [super dealloc]; 
} 

#pragma mark - 
#pragma mark NSURLConnection Methods 
#pragma mark - 

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace { 
    NSLog(@"canAuthenticateAgainstProtectionSpace"); 
    return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]; 
} 

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { 
    if([challenge previousFailureCount] == 0){ 
     NSLog(@"Auth tried"); 
     NSURLCredential *credentials = [NSURLCredential credentialWithUser:@"userName" password:@"password" persistence:NSURLCredentialPersistenceNone]; 

     [[challenge sender] useCredential:credentials forAuthenticationChallenge:challenge]; 
    } 
    else { 
     NSLog(@"Auth failed"); 
    }  
} 

- (void)connection:(NSURLConnection *)conn didReceiveResponse:(NSURLResponse *)response 
{ 
    NSLog(@"didReceiveResponse: %@\n",[[response URL] absoluteString]); 
} 
- (void)connection:(NSURLConnection *)conn didReceiveData:(NSData *)data 
{ 
    //NSLog(@"Did receive data: %@",data); 
} 

- (void)connection:(NSURLConnection *)conn didFailWithError:(NSError *)error 
{ 

    NSLog(@"Error is:%@",error); 
} 

- (void)connectionDidFinishLoading:(NSURLConnection *)conn 
{ 

    NSLog(@"connectionDidFinishLoading"); 
}