Django's JSON data format

JSON Introduction:

O     the JSON refers JavaScript Object Notation ( JavaScript Object Notation )

O     the JSON is a lightweight text data interchange format

O     JSON language independent 

O     the JSON self-descriptive better understood

* JSON using JavaScript syntax to describe data objects, but JSON is still independent of language and platform. JSON parser and JSON library supports many different programming languages.   

 

Sequence and deserialization:

J S in JSON an object can be serialized data ( JSON . The stringify () ) and deserialize ( JSON . The parse () ) process;

py in json module ( Import json ) data may be serialized ( json.dumps () ) and deserialize ( json.loads () ) process.

JSON serialization date and time data types:

 1 import json
 2 from datetime import datetime,date
 3 t = {'timer':datetime.now()}
 4  
 5 class JsonCustomEncoder(json.JSONEncoder):
 6     def default(self, field):
 7         if isinstance(field,datetime):
 8             return field.strftime('%Y-%m-%d %H:%M:%S')
 9         elif isinstance(field,date):
10             return field.strftime('%Y-%m-%d')
11         else:
12             return json.JSONEncoder.default(self,field)
13  
14 t_json = json.dumps(t,cls=JsonCustomEncoder)
15 print(t_json)