django ajax传参数

param= json.loads(request.body.decode('utf-8'))

# file_name= param["filename"]

function select_img(index) { $("#demo-origin-idcard").html("<br /><img src='/static/demo-card-"+index+".png'>");
 $.ajax({ url:'/idcard_ocr_by_name',
 type:'POST',
 data: JSON.stringify({type:'model', filename:index}),
 dataType:'json',
 contentType: false, // tell jquery not to set contentType
 success: function(callback) { var json = eval('(' + callback + ')');
 var eValue=json['data'];
 $("#demo-result-idcard").find(".card-no").html(eValue['numstr']);
 } }); // end ajax
}