在Objective-C iPad开发中进行POST [英] POST in Objective-C iPad dev

问题描述

我正在尝试发出POST请求，而我似乎无法弄清楚发生了什么问题。我收到服务器的回应，但我的电子邮件/密码对似乎没有被正确发送/读取（由服务器），它告诉我没有这样的帐户存在。

这里是我的代码，它包含在一个函数中（当用户按下我创建的登录按钮时调用它）。注意：变量'email'和'password'被设置为我创建的2个文本字段中的值。

  NSURL * url = [NSURL URLWithString：@http://mydomain.com/login-ipad/]; 
 NSMutableURLRequest * theRequest = [NSMutableURLRequest requestWithURL：url]; 
 NSString * messageBody = [NSString stringWithFormat：@email =％@& user_pass =％@，email，password]; 
 NSString * msgLength = [NSString stringWithFormat：@％d，[messageBody length]]; 
 [theRequest addValue：@text / xml; charset = utf-8forHTTPHeaderField：@Content-Type]; 
 [theRequest setHTTPMethod：@POST]; 
 [theRequest addValue：msgLength forHTTPHeaderField：@Content-Length]; 
 [theRequest setValue：@application / x-www-form-urlencodedforHTTPHeaderField：@Current-Type]; 
 [theRequest setHTTPBody：[messageBody dataUsingEncoding：NSUTF8StringEncoding]]; 
 NSURLConnection * theConnection = [[NSURLConnection alloc] initWithRequest：theRequest delegate：self]; 
 if（theConnection）
 {
 NSLog（@连接成功）; 
 parent.loginButton.enabled = NO; 
 receivedData = [[NSMutableData data] retain]; 
} 
 else 
 {
 UIAlertView * alert1 = [[[UIAlertView alloc] initWithTitle：@警报消息：@发送数据时出现问题，请检查您的网络连接。 delegate：self cancelButtonTitle：@OKotherButtonTitles：nil] autorelease]; 
 [alert1 show]; 
 
 $ / code> 

任何人都可以看到我的逻辑有什么问题吗？

$ b $你正在添加一个 Current-Type 头（这AFAIK甚至不是一个有效的头）而不是 Content-Type 。

I'm trying to make a POST request, and I can't seem to figure out what is going wrong. I am getting a response back from the server, but my email/password pair doesn't seem to be being sent/read properly (by the server) and it tells me that no such account exists.

Here's my code that is contained within a function (which is called when the user presses a "login" button I have created). Note: the variables 'email' and 'password' are set to the values in 2 textfields I have also created.

NSURL *url = [NSURL URLWithString:@"http://mydomain.com/login-ipad/"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *messageBody = [NSString stringWithFormat:@"email=%@&user_pass=%@",email,password];
NSString *msgLength = [NSString stringWithFormat:@"%d", [messageBody length]];
[theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[theRequest setHTTPMethod:@"POST"];
[theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
[theRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"];
[theRequest setHTTPBody:[messageBody dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if(theConnection)
{
    NSLog(@"Connection Successful");
    parent.loginButton.enabled = NO;
    receivedData = [[NSMutableData data] retain];
}
else
{
    UIAlertView *alert1 = [[[UIAlertView alloc] initWithTitle:@"Alert" message:@"There was an issue sending the data. Please check your internet connection." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];
    [alert1 show];
}

Can anyone see anything wrong with my logic?

解决方案

You're adding a Current-Type header (which AFAIK is not even a valid header) instead of Content-Type.

这篇关于在Objective-C iPad开发中进行POST的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！