ASIHTTPRequest 身份验证

身份验证，需要条件也就是一个验证的服务器端，这里采用的是一个免费的网络虚拟主机，上传一个index.php的页面进行验证，附上index.php

- (void) didFinishPostlogin:(ASIHTTPRequest *) request {

    NSData *data =[request responseData]; 
    NSString * result = [NSString stringWithUTF8String:[data bytes]];
    NSString * resultString = request.responseString;
    NSLog(@"data:%@",result);
}
- (void) didFailedPostlogin:(ASIHTTPRequest *) request {
    NSData *data =[request responseData]; 
    NSString * result = [NSString stringWithUTF8String:[data bytes]];
    NSString * resultString = request.responseString;
    NSLog(@"data:%@",result);
}
//-------------- 验证 -------------
- (IBAction)login:(id)sender {
    if (inUserPwd.isFirstResponder) {
        [inUserPwd resignFirstResponder];
    }
    if (inUserName.isFirstResponder) {
        [inUserName resignFirstResponder];
    }

    NSURL *url = [NSURL URLWithString:@"http://***/index.php"];
    self.formrequest = [ASIFormDataRequest requestWithURL:url];
    
    [formrequest setDelegate:self];
    [formrequest setRequestMethod:@"POST"];
    [formrequest setPostValue:inUserName.text forKey:@"username"];
    [formrequest setPostValue:inUserPwd.text forKey:@"password"];
    [formrequest retryUsingSuppliedCredentials];
    [formrequest setDidFailSelector:@selector(didFailedPostlogin:)];
    [formrequest setDidFinishSelector:@selector(didFinishPostlogin:)];
    //-------当程序进入后台时继续进行request
    [formrequest setShouldContinueWhenAppEntersBackground:YES];
    [formrequest startAsynchronous];
    [ASIHTTPRequest setSessionCookies:nil];
    
}

<?php  
    if($_POST['username'] == "111" &&  $_POST['password'] == "222")  
    {  
        echo '{"yes":"sucess"}';  
        echo '<script>';#调用javascript的跳转和弹窗
		echo "alert('登录成功'); location.href='http://baidu.com'; ";
		echo '</script>';  
		exit();#停止程序的执行 
    }else  
    {  
        echo '{"error":"failed"}';  
    };  
?> 

复制到txt文件，保存为index.php，上传到虚拟主机即可！！！