如何製作一個網站作爲iPhone本機應用程序？

Question

我打算將我的網站轉換爲iPhone本機應用程序。我被困在如何實現這一點。

最初，我開發了第一個屏幕，即我的應用程序的登錄屏幕。我的服務器是用Java構建的。我能夠將登錄憑據發送到服務器，並能夠在服務器上看到請求。但是我無法收到服務器對我發送的請求的響應。

我的代碼的一部分是：

NSString *post = @"username="; 

    post = [post stringByAppendingString:username]; 
    post = [post stringByAppendingString:@"&password="]; 
    post = [post stringByAppendingString:password]; 

    NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES]; 

    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 

    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; 
    [request setURL:[NSURL URLWithString:@"http://mysite.com/login.action?"]]; 
    [request setHTTPMethod:@"POST"]; 
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    // [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    [request setHTTPBody:postData]; 

    NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:request delegate:self]; 
    if (conn) 
    { 
     receivedData = [[NSMutableData data] retain]; 
     NSLog(@"In \"LOGIN()\" : receivedData = %@",receivedData); 
    } 


- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 
{ 
    [receivedData setLength:0]; 

    NSLog(@"In \"didReceiveResponse()\" : receivedData = %@",receivedData); 
} 

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
{ 
    [receivedData appendData:data]; 
    NSString *ReturnStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 
    NSLog(@"In \"didReceiveData()\" : receivedData = %@",receivedData); 
    NSLog(@"Return String : %@", ReturnStr); 

} 

- (void)connectionDidFinishLoading:(NSURLConnection *)connection 
{ 
    NSLog(@"Succeeded! Received %d bytes of data",[receivedData length]); 


    NSString *urlData; 
    if (nil != receivedData) { 
     urlData = [[[NSString alloc] initWithData:receivedData 
             encoding:NSUTF8StringEncoding] autorelease]; 
    } 
    NSLog(@"In \"connectionDidFinishLoading()\" : urlData = %@",urlData); 

    [receivedData release]; 
} 


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

    [connection release]; 

    [receivedData release]; 


    NSLog(@"Connection failed! Error - %@ %@", 
      [error localizedDescription], 
      [[error userInfo] objectForKey:NSErrorFailingURLStringKey]); 
} 

1. 如何開發一個登錄應用程序？
2. 我正在向服務器發送成功請求，但我無法從服務器獲得響應。我怎樣才能克服這個問題？

Answer 1

如果您的經驗與網絡開發有關，您可能有興趣查看適用於iPhone的NimbleKit。這是一個簡單的XCode插件，它允許您使用HTML和JavaScript來開發整個本機應用程序。