使用HTTP Post方法如何在iphone中创建登录页面 [英] using HTTP Post method how to make login page in iphone

问题描述

我已经创建了一个Login视图。每次登录时都会显示登录成功消息。即使我输入错误的用户名和密码。我创建了登录页面静态。被提取的链接是示例Web服务链接。这是我现在正在使用的方法：请给我任何想法。谢谢。

I'm have created a Login view. Everytime I login it gives me login Success message will be displayed. even if I enter wrong username and password.I am created login page static.The menctioned link is sample web services link. This is the method I'm using right now:Please give me any idea.Thanks in advance.

loginPage.m

-

(IBAction)login:(id)sender

{

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

NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];


NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]];


NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];


[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"HTTP://URL"]]];


[request setHTTPMethod:@"POST"];


[request setValue:postLength forHTTPHeaderField:@"Content-Length"];


[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"];


[request setHTTPBody:postData];


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


if (conn)

{

NSLog(@"connection successful");

}

else

{


NSLog(@"Failed");


}

}

-(BOOL)textFieldShouldReturn:(UITextField *)textField

{

[textField resignFirstResponder];

return YES;

}

-(void) connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

{

}

-(void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response

{

[receivedData setLength:0];

// NSURL *theURL=[response URL];

}

-(void) connectionDidFinishLoading:(NSURLConnection *)connection

{

if(receivedData)

{

NSLog(@"success",[receivedData length]);

}

else

{

NSLog(@"Success",[receivedData length]);

}

}

推荐答案

NSString *string= [NSString stringWithFormat:@"your Url.php?&Username=%@&Password=%@",username,password];
        NSLog(@"%@",string);
        NSURL *url = [NSURL URLWithString:string];
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];

        NSURLResponse *response;
        NSError *err;
        NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
        NSLog(@"responseData: %@", responseData);
        NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
        NSLog(@"responseData: %@", str);
        NSString *str1 = @"1";
        if ([str isEqualToString:str1 ])
        {

            UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Successfully" message:@"" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
            [alert show];
        }
        else
        {
            UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Try Again" message:@"" delegate:self cancelButtonTitle:@"Try Later" otherButtonTitles:@"Call", nil];
            alert.tag = 1;
            [alert show];
        }

不需要使用JSON就可以在没有JSON的情况下使用JSON方式!!!

Don't need to use JSON you can do this without JSON in a esay way!!!

这篇关于使用HTTP Post方法如何在iphone中创建登录页面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！