JSON parsing scheme, json Parsing

JSON parsing scheme, json Parsing

 

In iOS, there are four common JSON resolution solutions.

Third-party frameworks: JSONKit, SBJson, and TouchJSON (performance from left to right, the worse)

Apple native (built-in): NSJSONSerialization (Best Performance)

 

Conversion between JSON and OC

JSON-> OC object

  NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];

Use this class to parse the first parameter data in json format,

The second parameter: Operation: Generally, NSJSONReadingMutableContainers or kNilOptions is written. The latter has the highest efficiency. The former requires a variable container.

Third parameter: Incorrect address

 

OC Object> JSON

  NSData *data = [NSJSONSerialization dataWithJSONObject:@{@"name":@"jack"}]  options:NSJSONWritingPrettyPrinted error:nil];

 

 

To Format JSON data, you can write it to a plist file.

// Parse JSON NSDictionary * dict = [NSJSONSerialization JSONObjectWithData: data options: kNilOptions error: nil]; [dict writeToFile: @ "/Users/DDZ/Desktop/data. plist "atomically: YES];