标签：http os io 文件 for ar art div cti
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Content-type: multipart/form-data, boundary=AaB03x--AaB03xcontent-disposition: form-data; name="field1"Hello Boris!--AaB03xcontent-disposition: form-data; name="pic"; filename="boris.png"Content-Type: image/png... contents of boris.png ...--AaB03x-- |
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//分界线的标识符 NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x"; //根据url初始化request NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10]; //分界线 --AaB03x NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY]; //结束符 AaB03x-- NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary]; //要上传的图片 UIImage *image=[params objectForKey:@"pic"]; //得到图片的data NSData* data = UIImagePNGRepresentation(image); //http body的字符串 NSMutableString *body=[[NSMutableString alloc]init]; //参数的集合的所有key的集合 NSArray *keys= [params allKeys]; //遍历keys for(int i=0;i<[keys count];i++) { //得到当前key NSString *key=[keys objectAtIndex:i]; //如果key不是pic，说明value是字符类型，比如name：Boris if(![key isEqualToString:@"pic"]) { //添加分界线，换行 [body appendFormat:@"%@\r\n",MPboundary]; //添加字段名称，换2行 [body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key]; //添加字段的值 [body appendFormat:@"%@\r\n",[params objectForKey:key]]; } } ////添加分界线，换行 [body appendFormat:@"%@\r\n",MPboundary]; //声明pic字段，文件名为boris.png [body appendFormat:@"Content-Disposition: form-data; name=\"pic\"; filename=\"boris.png\"\r\n"]; //声明上传文件的格式 [body appendFormat:@"Content-Type: image/png\r\n\r\n"]; //声明结束符：--AaB03x-- NSString *end=[[NSString alloc]initWithFormat:@"\r\n%@",endMPboundary]; //声明myRequestData，用来放入http body NSMutableData *myRequestData=[NSMutableData data]; //将body字符串转化为UTF8格式的二进制 [myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]]; //将image的data加入 [myRequestData appendData:data]; //加入结束符--AaB03x-- [myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]]; //设置HTTPHeader中Content-Type的值 NSString *content=[[NSString alloc]initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY]; //设置HTTPHeader [request setValue:content forHTTPHeaderField:@"Content-Type"]; //设置Content-Length [request setValue:[NSString stringWithFormat:@"%d", [myRequestData length]] forHTTPHeaderField:@"Content-Length"]; //设置http body [request setHTTPBody:myRequestData]; //http method [request setHTTPMethod:@"POST"]; //建立连接，设置代理 NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self]; //设置接受response的data if (conn) { mResponseData = [[NSMutableData data] retain]; |
标签：http os io 文件 for ar art div cti
原文地址：http://www.cnblogs.com/lingzeng/p/3933044.html
