iphone SDK：如何使用URL发回数据？

我在LightTableViewController.m上读取了plist数据

我加载的数据如下：

    LOG RESULT:   
The Plist Data Is : (
        {
        category = 11;
        id = 1;
        name = "LIVING RM";
        status = 0;
    },
        {
        category = 11;
        id = 2;
        name = "BEDROOM RM";
        status = 0;
    }
)

我需要将id和状态发回数据库

控制打开或关闭哪个灯的步骤

这部分是my post方法，在LightCell0.m中

所以…我的问题是

如何将两个数据发回使用是否正确，将两个返回变量分开

如何消除非结构或联合中成员“plist”的错误请求

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非常感谢

1类似于URL中的GET值，POST值由“&”分隔

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2“成员请求”。。。行告诉您您的成员不存在，或者至少未在此范围内声明，警告“NSString可能没有响应…”告诉您正在尝试调用NSString上的消息/方法，我猜应该在另一个类上调用该消息/方法。NSDictionary是我的猜测。

我认为在这个空白处，plist为null。我将此添加到lightCell0:NSURLRequest*theRequest=[nsurlRequestWithURL:[NSURLWithString:@cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]；NSData*returnData=[NSURLConnection sendSynchronousRequest:theRequest returningResponse:nil错误：nil]；NSString*listFile=[NSString alloc]initWithData:returnData encoding:NSASCIIStringEncoding]；self.plist=[listFile propertyList]；但我得到了[[self.plist objectAtIndex:indexath.row]valueForKey:@id是97534704或一个随机数……不是我定义的真实id。哦，我明白了，我忘了添加intValue

- (void)switchToggled:(id)sender {

    UISwitch *theSwitch = (UISwitch *)sender;
    UITableViewCell *cell = (UITableViewCell *)theSwitch.superview.superview;
    UITableView *tableView = (UITableView *)cell.superview;
    NSIndexPath *indexPath = [tableView indexPathForCell:cell];



    if(theSwitch.on) {
        NSURL * url;
        NSMutableURLRequest * request;  
        NSString *_urlString = @"http://10.85.28.99/req_light.php"; 
        url = [self smartURLForString:_urlString];
        request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];


            //This is my first post method,it is static,only get the indexPath,Not a real id and status I want to post back 
        NSString *post = [NSString stringWithFormat:@"lightcb%i=1", indexPath.row+1];
        NSData *postData = [ NSData dataWithBytes: [ post UTF8String ] length: [ post length ] ];
        [request setHTTPBody:postData];
        self.connection = [NSURLConnection connectionWithRequest:request delegate:self];
    } 
    else {
        NSURL * url;
        NSMutableURLRequest * request;
        NSString *_urlString = @"http://10.85.28.99/req_light.php";
        url = [self smartURLForString:_urlString];
        request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];


            //I got one error and one warring 
        //Error is "Request for member 'plist' in something not a structure or union"
            //Warning is 'NSString' may not resopnd to '+stringWithFormat:value=ForKey'
        NSString *post = [ NSString stringWithFormat:@"id=%i,status=0", 
                                  [[self.plist objectAtIndex:indexPath.row] valueForKey:@"id"]];
        NSData *postData = [ NSData dataWithBytes: [ post UTF8String ] length: [ post length ] ];
        [request setHTTPBody:postData];
        self.connection = [NSURLConnection connectionWithRequest:request delegate:self];

    }
}