iphone - NSURLRequest 不工作

Question

我正在使用 php 和 mysql 数据库开发 iOS 网络应用程序，我的问题是 nsurl 请求获取 php 文件的值没有响应并且不工作但是，我正在命令提示符 url 中打印并复制 url 粘贴并转到浏览器已成功更新。但是，未更新且没有响应 nsurl 请求我的代码中有什么问题？任何人都可以帮助我!

            NSURL *url = [[NSURL alloc] initWithString:[NSString stringWithFormat:@"http://192.168.1.20:90/inkfreakz/update.php?fname=%@&lname=%@&gender=%@&dob=%@&uname=%@&email=%@&city=%@&zcode=%@&state=%@&count=%@&tattoo=%@&aboutme=%@&id=%@",txt_first.text,txt_last.text,txt_gender.text,txt_birth.text,txt_user.text,txt_email.text,txt_city.text,txt_zip.text,txt_state.text,txt_country.text,txt_tatoo.text,txt_about.text,[results objectAtIndex:13]]];
            NSLog(@"%@",[NSString stringWithFormat:@"http://192.168.1.20:90/inkfreakz/update.php?fname=%@&lname=%@&gender=%@&dob=%@&uname=%@&email=%@&city=%@&zcode=%@&state=%@&count=%@&tattoo=%@&aboutme=%@&id=%@",txt_first.text,txt_last.text,txt_gender.text,txt_birth.text,txt_user.text,txt_email.text,txt_city.text,txt_zip.text,txt_state.text,txt_country.text,txt_tatoo.text,txt_about.text,[results objectAtIndex:14]]);

            NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:5];

            NSData *urlData;
            NSURLResponse *response;
            urlData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:nil];
            NSString* newStr = [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];

            if(newStr.length==0)
            {
                lbl_status.text=@"Can't Communicate with Server!";
                lbl_status.hidden=NO;
                [my_scroll_view setContentOffset:CGPointMake(0,0) animated:YES];
            }
            else {
                lbl_status.text=newStr;
                lbl_status.hidden=NO;
                [my_scroll_view setContentOffset:CGPointMake(0,0) animated:YES];
            }

谢谢!

Answer 1

我建议使用 – stringByAddingPercentEscapesUsingEncoding: 来构建您的 URL，因为它可能需要一些转义:

NSString* urlString = [NSString stringWithFormat:@"http://192.168.1.20:90/inkfreakz/update.php?fname=%@&lname=%@&gender=%@&dob=%@&uname=%@&email=%@&city=%@&zcode=%@&state=%@&count=%@&tattoo=%@&aboutme=%@&id=%@",txt_first.text,txt_last.text,txt_gender.text,txt_birth.text,txt_user.text,txt_email.text,txt_city.text,txt_zip.text,txt_state.text,txt_country.text,txt_tatoo.text,txt_about.text,[results objectAtIndex:13];

NSURL *url = [[NSURL alloc] initWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];