如何使用nsserlization解析nsdictionary數據？

Question

我有這樣的字典數據和圖像上的一個數組。

{“結果”：“成功”，“數據”：{“ id”：“ 12”，“產品名稱”：“ 12 \\”圓盤“，” sku“：” ECOW12RP“，”描述“：”直徑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“，”狀態“：” 1“，”已刪除“：” 0“，”安排“：” 1“，”交付“：” 150.00“}}

我想從中解析所有關鍵值。 這是我用於此任務的代碼。

    -(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);
}

我試圖在for循環的幫助下從nsdictionary解析字符串，但是我將產品詳細信息數組設置為null，但我不知道為什么它沒有獲得鍵值。

我正在解析nsdictionary中的數據，但是當我嘗試解析此json數據中的圖像數組時，我具有null數組，請查看此json數據。

{"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

關於將product_name數據放入字典的具體問題，這可以解決

   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，您應該會看到它在其中。

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

Answer 2

嘗試這個

選項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];
 }