iOS通過http post上傳圖片的代碼

代碼過程，把做工程過程經常用到的一些代碼片段備份一下，下面的代碼是關于iOS通過http post上傳圖片的代碼，希望對大伙有些用處。

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form = [[[ASIFormDataRequest alloc]
initWithURL:[NSURL URLWithString:url]] autorelease];
[form setTimeOutSeconds:60.0];
form.delegate = self;

imageView.image=[UIImage imageNamed:@"btn_done_down@2x.png"];
NSLog(@"%@",data);

for(int i=0;i<[keys count];i++)? 
{? 
        if(![key isEqualToString:@"files"])
        {? 
                [body appendFormat:@"%@rn",MPboundary];? 
                [body appendFormat:@"Content-Disposition: form-data; name="%@"rnrn",key];? 
                [body appendFormat:@"%@rn",[sugestDic objectForKey:key]];????????????? 
        }? 
}? 
if (imageView.image) {
        [body appendFormat:@"%@rn",MPboundary];
        [body appendFormat:@"Content-Disposition: form-data; name="files"; filename="boris.png"rn"];? 
        [body appendFormat:@"Content-Type: image/pngrnrn"];
}

[myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]]; 
[myRequestData appendData:data]; 
[myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]];

[form addRequestHeader:@"Content-Type" value:content];
[form addRequestHeader:@"Content-Length" value:[NSString stringWithFormat:@"%d", [myRequestData length]]];
[form setRequestMethod:@"POST"];
[form startAsynchronous];
[form setDidFailSelector:@selector(requestBeFailed:)];
[form setDidFinishSelector:@selector(requestBeFinished:)];
return tempDic; 

}