flask中ajax应用示例

前段页面：
var data = {
       data: JSON.stringify({"flag":"0","start_year":$('#start_year').val(),"end_year":$("#end_year").val(),"trend_type":$("#trend_type").val(),
"trend_product":$("#trend_product").val(),"reporters":reporters})
        }
app.title = '折柱混合';
  $.ajax({
           type:"POST",
url:"/load_history_byyear",
data:data,
success:function(data){
   console.info("data:"+data.series);
}
}）；


后端后台：

@flask_app.route('/load_history_bymonth', methods=['POST', 'GET'])
def load_history_bymonth():
    data = json.loads(request.form.get('data'))
    flag = int(data['flag'])
    select_year = data['select_year']
    trend_type = data['trend_type']
    trend_product = data['trend_product']
    reporters = data['reporters']
    datas = tradeservice.getTradeHistory(flag=flag, year=select_year, tradeflow=trend_type, product_name=trend_product,
                                         reporters=reporters)
    global history
    history = jsonify(datas)
    return jsonify(datas)