About context-type

1、context-type

(1) get requests

splicing parameters can directly get request in the address

get request can get directly @RequestParam

(2) post request

Reception data format

var jsonParam = {id:id,name:name}

context-type:application/json

method: 'post'

Background receiver (note, @ RequestBody only be used in post request)

用 @RequestBody 就可获得封装的实体

So you get the object information coming from the front desk, but sometimes want to get the individual attribute values ​​from json object is delivered in the foreground, the package did not want to target, how to do it?

Reception data

var jsonParam = {id:id, name: name}

context-type: application/x-www-form-urlencoded

method: post

Background reception

public String find(@RequestParam(name="id") String id){}

Json default foreground in the background have been encapsulated into objects, direct access to the parameter is not taken,

Context-type needs to be changed to x-www-form-urlencoded

Encoding format sent to the server object to do so will jsonParam client object to a key / value format

You will be able to get through @RequestParam

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