发送数据到网站答案

【问题标题】：Send Data to Web Site发送数据到网站
【发布时间】：2013-11-21 12:21:31
【问题描述】：

我有问题。我从程序（xcode，我在目标C上开发）向服务器发送POST请求，数据已发送，但我需要在网站上注册（身份验证），我不知道,我是如何发送这个字符串的

NSString * param = [NSString stringWithFormat:@"action=login&name=%@&password=%@", myName, myPassword]

我的完整代码：

request.HTTPMethod = @"POST";

NSString * myName = _loginLogin.text;
NSString * myPassword= _passwordLogin.text;

NSString * param = [NSString stringWithFormat:@"action=login&name=%@&password=%@", myName, myPassword];
request.HTTPBody = [param dataUsingEncoding:NSUTF8StringEncoding];

NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

我使用这个*(www.dnevnik.ru)* 页面。

对于我的网站字符串NSString *postString = [NSString stringWithFormat:@"&username=%@&password=%@", username, password]; 不合适？

【问题讨论】：

您需要在 NSURLConnectionDelegate 的委托回调中解析响应

标签： html ios iphone objective-c

【解决方案1】：

使用以下代码：只需添加

@property (nonatomic, strong) NSMutableData *responseData;

在您的 .h 文件中

NSUserDefaults *loginData = [NSUserDefaults standardUserDefaults];
    NSString *username = [loginData objectForKey:@"username"] ;
    NSString *password = [loginData objectForKey:@"password"];

    NSString *postString = [NSString stringWithFormat:@"&username=%@&password=%@", username, password];
    NSString *urlString = @"http://YourUrl";
    NSURL *myURL = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

    NSMutableURLRequest *detailRequestToServer =[NSMutableURLRequest requestWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60.0];
    [detailRequestToServer setHTTPMethod:@"POST"];
    [detailRequestToServer setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    const char *utfString = [postString UTF8String];
    NSString *utfStringLenString = [NSString stringWithFormat:@"%zu", strlen(utfString)];
    [detailRequestToServer setHTTPBody:[NSData dataWithBytes: utfString length:strlen(utfString)]];
    [detailRequestToServer setValue:utfStringLenString forHTTPHeaderField:@"Content-Length"];

    NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:detailRequestToServer delegate:self];
    if (theConnection)
    {
        self.responseData = [[NSMutableData alloc] init];
    }
    else
        NSLog(@"Connection Failed!");

【讨论】：

【解决方案2】：

  NSString *bodyData = [NSString stringWithFormat:@"action=login&name=%@&password=%@", myName, myPassword];

    NSMutableURLRequest *postRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://www.apple.com"]]; //replace your url here

    // Set the request's content type to application/x-www-form-urlencoded
    [postRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

    // Designate the request a POST request and specify its body data
    [postRequest setHTTPMethod:@"POST"];
    [postRequest setHTTPBody:[NSData dataWithBytes:[bodyData UTF8String] length:strlen([bodyData UTF8String])]];

// Create the NSMutableData to hold the received data.
// receivedData is an instance variable declared elsewhere.
receivedData = [NSMutableData dataWithCapacity: 0];

// create the connection with the request
// and start loading the data
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:postRequest delegate:self];
if (!theConnection) {
    // Release the receivedData object.
    receivedData = nil;

    // Inform the user that the connection failed.
}

【讨论】：