如何在iOS中向PHP发送GEt请求

问题描述

嗨我在向PHP发送GET请求时遇到问题，在Web浏览器中运行时，同样的PHP工作正常
这里是PHP和Obj-C
PHP的代码片段

Hi i have problem in sending GET request to a PHP, same PHP works fine when running it in web browserhere are the code snippet of both the PHP and Obj-CPHP

$var1=$_GET['value1'];
$var2=$_GET['value2'];

当我在浏览器中调用此内容时，如
它工作正常，但来自obj ci无法成功
obj C

when i call this in browser like http://sample.com/sample.php?value1=hi&value2=welcomeit works fine, but from obj c i could't get succeedobj C

 NSString *url =[NSString stringWithFormat:@"http://sample.com/sample.php"];
    NSData *data = [@"sample.php" dataUsingEncoding:NSUTF8StringEncoding];
    NSLog(@"%@",url);
    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
    [req setHTTPMethod:@"GET"];
    [req setHTTPBody:data];
    NSURLConnection *connection = [[[NSURLConnection alloc] initWithRequest:req delegate:self]autorelease];
    [connection start];

请帮帮忙？

推荐答案

问题是您在请求对象上设置了HTTPBody（通过调用 setHTTPBody ），而GET请求没有正文，传递的数据应该附加到网址上。因此，为了模仿您在浏览器中所做的请求，它就像这样。

The problem is that you set HTTPBody (by calling setHTTPBody on your request object) whilst GET-requests doesn't have a body, the passed data should be appended to the url instead. So to mimic the request your did in your browser it would simply be like this.

NSString *url =[NSString stringWithFormat:@"http://sample.com/sample.php?value1=hi&value2=welcome"];
NSLog(@"%@",url);
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
[req setHTTPMethod:@"GET"]; // This might be redundant, I'm pretty sure GET is the default value
NSURLConnection *connection = [[[NSURLConnection alloc] initWithRequest:req delegate:self]autorelease];
[connection start];

您当然应该确保正确编码查询字符串的值（参见例如）确保您的请求有效。

You should of course make sure to properly encode the values of your querystring (see http://madebymany.com/blog/url-encoding-an-nsstring-on-ios for an example) to make sure that your request is valid.

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