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好的，我有一个登录屏幕，它将用户名和密码发送到PHP页面。根据登录状态，PHP页面的回显为“是”或“否”，但我希望它从数据库回显用户标识以供进一步使用。我必须为此使用JSON吗？我不知道如何检索多个回声。目前的代码是：从PHP中拉出超过1个回显OK
- (IBAction) login: (id) sender
{
NSString *post =[NSString stringWithFormat:@"username=%@&password=%@",usernameField.text, passwordField.text];
NSString *hostStr = @"https://www.mysite.com/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:@"Business Manager" message:@"Login Successful"
delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[alertsuccess show];
[alertsuccess release];
RootViewController *viewMenu = [[RootViewController alloc]
initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];
self.rootViewController = viewMenu;
[viewMenu release];
[self.navigationController pushViewController:self.rootViewController animated:YES];
} else {
UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Username or Password Incorrect"
delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[alertsuccess show];
[alertsuccess release];
}
}
现在我只想再拉一个叫做“ID”的回声。为此形成JSON似乎是任意的。