IOS parses JSON in two ways

Method 1: Use the jsonkit Library

1. First download a JSON library from the Internet;

2. Add the Library to the project;

3. The Code is as follows:

Put JSON into a TXT file and nsstring

Nsstring * jsonstring = [nsstring
Stringwithcontentsoffile: JSON file address encoding: nsutf8stringencoding
Error: Nil];

Put the parsing in nsarray

Nsdata * Data = [jsonstring
Datausingencoding: nsutf8stringencoding];

Nsarray * arr = (nsarray *) [Data
Mutableobjectfromjsondata];

Nslog (@ "arr = % @", arr );

You can also put it in nsdictionary.

Nsdictionary * returndictionary = [data mutableobjectfromjsondata];

Method 2: Use nsjsonserialization

Nsdata * returndata = [jsonstring
Datausingencoding: nsutf8stringencoding];

Nserror * jsonparsingerror =
Nil;

Nsdictionary * returndictionary = [nsjsonserialization
Jsonobjectwithdata: returndata options: 0
Error: & jsonparsingerror];

If (! Jsonparsingerror ){

Nslog (@ "returndictionary =%@", returndictionary );

// Do your stuff here

}