jquery中json数据转换为字典

var recipe = {};
recipe["name"] = $("#name").val();
recipe["age"] = $("#age").val();
recipe["sex"] = $("#sex").val();
recipe["medicine"] = "{'name': 'a', 'value': 'b'}";

$.ajax({
type: "post",
dataType: "json",
url: "/doctor/recipe/add/",
data: recipe,
success: function(Data){
alert("success")
}
});

<QueryDict: {u'medicine': [u"{'name': 'a', 'value': 'b'}"], u'age': [u'12'], u'name': [u'asdf'], u'sex': [u'1']}>

if request.method == "POST":
recipe_json = request.POST['medicine']//首先这里获取到的数据为unicode格式
recipe = recipe_json.encode("utf8")//将其转化为str
print recipe
print eval(recipe)//用eval方法转化为字典
recipe_dict = eval(recipe)
print recipe_dict['name']
return HttpResponse(json.dumps(True))