Question

我有下面的代码运行正常，但似乎没有发布任何东西，或者至少我的PHP不接受它。我做错了什么？

这是我的php：

$usr = $_POST['username'];
$psw = $_POST['password'];
if ($usr == '1' && $psw == '1') {
    echo 'Yes';
}

这是我的目标-c

NSString *post =[NSString stringWithFormat:@"username=%@&password=%@",usernameField.text, passwordField.text];

NSString *hostStr = @"http://ep.samico.dk/blogapp/login.php?";
hostStr = [hostStr stringByAppendingString:post];
NSData *dataURL =  [NSData dataWithContentsOfURL: [ NSURL URLWithString: hostStr ]];    
NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSASCIIStringEncoding];
if([serverOutput isEqualToString:@"Yes"]){
    UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"success" message:@"You are authorized"
                                                          delegate:self cancelButtonTitle:@"No" otherButtonTitles:@"Yes", nil];
    [alertsuccess show];

} else {
    UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"Fail" message:@"Invalid Access"
                                                          delegate:self cancelButtonTitle:@"No" otherButtonTitles:@"Yes", nil];
    [alertsuccess show];

}

Answer 1

关闭评论中所说的内容：

以下部分（您的代码）生成URL字符串，并在其末尾添加参数。

NSString *post =[NSString stringWithFormat:@"username=%@&password=%@",usernameField.text, passwordField.text];

NSString *hostStr = @"http://ep.samico.dk/blogapp/login.php?";
hostStr = [hostStr stringByAppendingString:post];

你可以修改它来实际执行POST 或你可以修改你的PHP代码来处理它们作为GET而不是POST。

$usr = $_GET['username'];
$psw = $_GET['password'];
if ($usr == '1' && $psw == '1') {
    echo 'Yes';
}

Answer 2

要在objc中执行POST，您需要直接使用NSURLConnection，如下所示：

NSString *post = [NSString stringWithFormat:@"username=%@&password=%@", @"username", @"pass"];

NSString *hostStr = @"http://ep.samico.dk/blogapp/login.php?";
NSURL *hostURL = [NSURL URLWithString:hostStr];
NSMutableURLRequest *req  = [NSMutableURLRequest requestWithURL:hostURL];
[req setHTTPBody:[post dataUsingEncoding:NSUTF8StringEncoding]];

NSURLResponse *response = nil;
NSError *error = nil;
NSData *data = [NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];

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

objective-c中的HTTP Post不发布任何内容

2 个答案: