Xcode 中的 HTTP 获取方法
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HTTP get method in Xcode
提问by user730581
I want to upload to an internet resource 2 values
我想上传到互联网资源 2 个值
I have created a php function "http://resource/top/?artist=VALUE1&title=VALUE2"
我创建了一个 php 函数“http://resource/top/?artist=VALUE1&title=VALUE2”
But I have a little bit lost how to develop this on Xcode side
但是我有点迷失了如何在 Xcode 方面开发它
Many thanks for your answers
非常感谢您的回答
回答by Tendulkar
you can take this as an example
你可以以此为例
NSString *post=[NSString stringWithFormat:@"userId=%@&password=%@&device=%@&amount=%@",[Login retuserid],[passwordfield text],[Login retdevid],[amountfield text]];
NSLog(@"post string is :%@",post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:@"http://203.217.146.44:81/POS/api.php?fn=cashRequest"]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSData *serverReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *replyString = [[NSString alloc] initWithBytes:[serverReply bytes] length:[serverReply length] encoding: NSASCIIStringEncoding];
NSLog(@"reply string is :%@",replyString);
回答by mvds
There are several ways to retrieve a URL, some easier and some harder to implement. As a quick start, for the unexperienced developer, this oneliner should do:
有几种方法可以检索 URL，有些更容易实现，有些更难。作为一个快速开始，对于没有经验的开发人员，这个 oneliner 应该做：
NSString *s=[NSString stringWithContentsOfURL:[NSURL urlWithString:@"http://url/..."]];
To do it the proper way (checking for errors, and not blocking your program) have a look at NSURLConnection, or e.g. ASIHTTPRequest which bundles a lot of functionality.
要以正确的方式（检查错误，而不是阻止您的程序）执行此操作，请查看 NSURLConnection，或例如捆绑了许多功能的 ASIHTTPRequest。
