Flask request 2 ways to get json content

# -*- coding: utf-8 -*-
from flask import request, jsonify, json, Module
import logging
from web.utils.consts import POST, GET
from web.db.dbSession import DBManager
from web.db.models import Class

NAMESPACE = 'student'
student = Module(__name__, NAMESPACE)


@student.route('/add', methods=[POST])
def student_add():
    # request.json 只能够接受方法为POST、Body为raw，header 内容为 application/json类型的数据：对应图1
    # json.loads(request.dada) 能够同时接受方法为POST、Body为 raw类型的 Text 
    # 或者 application/json类型的值：对应图1、2
    params = request.json if request.method == "POST" else request.args
    try:
        session = DBManager.get_session()
        c = Class(name=params['name'])
        session.add(c)
        session.commit()
        session.close()
    except Exception, e:
        logging.exception(e)
    return jsonify(code=200, status=0, message='ok', data={})

Figure 1

Figure 2