如何在iOS中向PHP发送GEt请求

Question

嗨,我有一个问题,发送GET请求到PHP,相同的PHP在Web浏览器中运行时工作正常这里是PHP和Obj-C PHP的代码片段

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

当我在浏览器中调用这个http://sample.com/sample.php?value1=hi&value2=welcome 它工作正常,但从obj ci无法成功obj 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];

请帮忙？

Answer 1

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

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(请参阅http://madebymany.com/blog/url-encoding-an-nsstring-on-ios以获取示例)以确保您的请求有效.