如何使用nsserlization解析nsdictionary数据？

Question

我有这样的字典数据和图像上的一个数组。

{“结果”：“成功”，“数据”：{“ id”：“ 12”，“产品名称”：“ 12 \\”圆盘“，” sku“：” ECOW12RP“，”描述“：”直径12英寸x \\ tDepth 0.9 inch“，” price“：” 153.00“，” business_price“：” 365.00“，” image“：[{” image“：” 1454499068ecow12rp_01.jpg“}]，” pack_size“：” 20“，” business_pack_size“：” 50“，” category“：” 2,3“，” tax_class“：” 1“，” created“：” 2016-02-03“，” altered“：” 2016-02-03 17:52 ：58“，”状态“：” 1“，”已删除“：” 0“，”安排“：” 1“，”交付“：” 150.00“}}

我想从中解析所有关键值。 这是我用于此任务的代码。

    -(void)viewDidLoad
{
    NSLog(@"d %ld", (long)id);
    NSString* myNewString = [NSString stringWithFormat:@"%i", id];
    NSURL *producturl = [NSURL  URLWithString:@"http://dev1.brainpulse.org/ecoware1/webservices/product/"   ];
    NSURL *url = [NSURL URLWithString:myNewString  relativeToURL:producturl];
    NSData * imageData = [NSData dataWithContentsOfURL:url];
    UIImage * productimage = [UIImage imageWithData:imageData];
    NSURL *absURL = [url absoluteURL];
    NSLog(@"absURL = %@", absURL);

    NSURLRequest *request= [NSURLRequest requestWithURL:absURL];
    [NSURLConnection connectionWithRequest:request delegate:self];
}

-(void)connection:(NSURLConnection *)connection   didReceiveResponse:(nonnull NSURLResponse *)response
{
    data = [[NSMutableData alloc] init];
    NSLog(@"Did receive response");
}
-(void)connection:(NSURLConnection *)connection  didReceiveData:(NSData *)thedata
{
    [data appendData:thedata];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
    NSDictionary *dictionary = [[NSJSONSerialization JSONObjectWithData:data options:0 error:nil]objectForKey:@"data"];

    NSLog(@"arr %@", dictionary);
    [productdetail removeAllObjects];

    for (NSString *tmp in dictionary)

        NSMutableDictionary *temp = [NSMutableDictionary new];
    [temp setObject:@"product_name" forKey:@"product_name"];

    //[temp setObject:[tmp objectForKey:@"id"] forKey:@"id"];
    // [temp setObject:[tmp objectForKey:@"image"] forKey:@"image"];

    [productdetail addObject:temp];

    NSLog(@"detail %@", productdetail);
}

我试图在for循环的帮助下从nsdictionary解析字符串，但是我将产品详细信息数组设置为null，但我不知道为什么它没有获得键值。

我正在解析nsdictionary中的数据，但是当我尝试解析此json数据中的图像数组时，我具有null数组，请查看此json数据。

{"result":"Successful","data":{"id":"2","product_name":"6\" Round Plate","sku":"ECOW6RP","description":"Diameter 6.0 (inch) x Depth 0.6 (inch)\r\n\r\nPerfect for finger foods!","price":"42.89","business_price":"100.00","image":[{"image":"1454499251ecow6rp_01.jpg"}],"pack_size":"20","business_pack_size":"50","category":"2,3","tax_class":"1","created":"2016-01-19","altered":"2016-02-06 16:06:10","status":"1","deleted":"0","arrange":"1","delivery":"150.00"}}

Answer 1

关于将product_name数据放入字典的具体问题，这可以解决

   NSDictionary *dictionary = [[NSJSONSerialization JSONObjectWithData:data options:0 error:nil]objectForKey:@"data"];

   NSMutableDictionary *temp = [NSMutableDictionary new];

if ([dictionary objectForKey:@"product_name"]){
   [temp setObject:[dictionary objectForKey:@"product_name"] forKey:@"product_name"];
}

如果您打印出制作的字典，您应该会看到它在其中。

NSLog(@"the temp dictionary value for ProductName: %@", [temp objectForKey:@"product_name"];

Answer 2

尝试这个

选项1

NSDictionary *dictionary = [[NSJSONSerialization JSONObjectWithData:data options:0 error:nil]objectForKey:@"data"];

[productdetail removeAllObjects];

if (dictionary)
{

NSMutableDictionary *temp = [NSMutableDictionary new];
[temp setObject:[dictionary objectForKey:@"product_name"] forKey:@"product_name"];
 [productdetail addObject:temp];
 }