Editor:
What's json format? What is the role of json? json is how to pass the data?
The effect json (json format is a language-independent data exchange)
station using data before and after the exchange ajax
Mobile data terminal and server exchange
Use Json format parsing may represent a convenient object information, JSON two formats:
1) Object Format : { "key1": obj, "key2": obj, "key3": obj ...}
2) array / set format : [obj, obj, obj ... ]
For example: user represented by the object data format json
{"username":"zhangsan","age":28,"password":"123","addr":"北京"}
List <Product> represents a data format json
[{"pid":"10","pname":"小米4C"},{},{}]
As long as the object is enclosed by {}, as long as it is a set of enclosed with []
Note: The object format and can be nested to form an array, a property of an object may be a collection or array