检测null和"null"类似的JSON值？Xcode中

Question

我在将数据插入tableView中的单元格时遇到问题.当我搜索错误源时,我看到我的webservice正在返回null值.因此,当我将名称调用到单元格时,它会崩溃参数为null.因此,原因是数据库问题,我只想跳过添加例如:{"name":"null"}的问题

在其他服务中,我得到空值空...所以它不会导致问题..我认为它是一个字符串的空值.

这是一个例子:

{
    "24_7" = 0;
    address = "avenue innsbruck";
    city = GRENOBLE;
    country = FR;
    dst = "14007.2046741012";
    "h_saturday" = " - ";
    "h_sunday" = " - ";
    "h_week" = " - ";
    id = 324;
    "location_lat" = "45.154";
    "location_long" = "5.73387";
    name = "<null>";
    "tel_1" = 0476544254;
    "tel_2" = "";
    zipcode = 38000;
}

我只想在这里解析json时跳过添加这个.

NSString *theJSON = [request responseString];

SBJsonParser *parser = [[SBJsonParser alloc] init];

NSDictionary *jsonDictionary = [parser objectWithString:theJSON error:nil];

//NSLog(@"OkRequest || %@ ", jsonDictionary);

[_jsonStation removeAllObjects];
for (NSDictionary *taxi in jsonDictionary)
{

    [_jsonStation addObject:taxi];

}

Answer 1

您可以通过在循环中执行此操作来测试对象是否为null:

if ([taxi isKindOfClass:[NSNull class]])
    continue;
//else, process it