从 UITextField iPhone 获取用户名密码

Question

我正在使用下面的代码来连接 HTTP 服务器。在这里，我将如何修改我的代码，以便通过 UITextField 的输入给出用户名和密码，并且下次连接时将使用保存在 NSUserDefaults 中的相同数据。

NSString *urlAsString = @"http://abc.com/services/user/validate?email=abc@gmail.com&password=123456";

//urlAsString = [urlAsString stringByAppendingString:@"?email=abc@gmail.com"]; 
//urlAsString = [urlAsString stringByAppendingString:@"&pass=123456"];

NSURL *url = [NSURL URLWithString:urlAsString];

NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url]; 

[urlRequest setTimeoutInterval:30.0f];

[urlRequest setHTTPMethod:@"POST"];

NSOperationQueue *queue = [[NSOperationQueue alloc] init];

[NSURLConnection sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response,NSData *data, NSError *error) {

     if ([data length] >0 && error == nil){

         NSString *html = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

         NSLog(@"HTML = %@", html);

         receivedData = [[NSMutableData data] retain];

     }
     else if ([data length] == 0 && error == nil){
         NSLog(@"Nothing was downloaded."); 

     }

     else if (error != nil){
         NSLog(@"Error happened = %@", error);
     } }];

Answer 1

 NSString *urlAsString = [NSString stringWithFormat:
       @"http://abc.com/services/user/validateemail=%@&password=%@",
           myUsernameTextField.text,       // abc@gmail.com
           myPasswordTextField.text ];     // 1234565