Django之简单返回数据方法

方法一:  通过字典方式返回

def login_view(request):
    if request.method == 'POST':
　　　　 # 定义一个默认返回数据字典
        back_code = {'code': 200, 'msg':''}
        form = LoginForm(request.POST)
        if form.is_valid():
            telephone = form.cleaned_data.get('telephone')
            password = form.cleaned_data.get('password')
            remember = request.POST.get('remember')
            user = authenticate(request, username=telephone, password=password)
            if user:
                if user.is_active:
                    login(request, user)
                    if remember:
                        request.session.set_expiry(None)
                    else:
                        request.session.set_expiry(0)
                else:
                    # 做完判断修改字典中的数据
                    back_code['code'] = 101
                    back_code['msg'] = '该账户已锁定!'
            else:
                back_code['code'] = 102
                back_code['msg'] = '该账户不存在!'
        else:
            pass
        # 将字典返回
        return JsonResponse(back_code, safe=False, json_dumps_params={'ensure_ascii': False})
    return render(request, 'cms/login.html')

方法二:  封装返回数据工具

from django.http import JsonResponse


class HttpCode(object):
    '''
    定义状态
    '''
    ok = 200
    paramserror = 400
    unauth = 401
    methoderror = 405
    servererror = 500


def result(code=HttpCode.ok, message='', data=None, kwargs=None):
    '''
    封装返回JsonResponse方法
    :param code:  状态
    :param message:  错误信息
    :param data:  返回数据
    :param kwargs:  保证代码的健壮性
    :return: JsonResponse数据
    '''
    # 定义返回的字典
    json_dic = {'code': code, 'message': message, 'data': data}

    # 判断kwargs是否存在以及格式是否正确, 通过则添加入字典中
    if kwargs and isinstance(kwargs, dict) and kwargs.keys():
        json_dic.update(kwargs)
    return JsonResponse(json_dic, safe=False, json_dumps_params={'ensure_ascii': False})


def params_error(message='', data=None):
    return result(code=HttpCode.paramserror, message=message, data=data)


def unauth(message='', data=None):
    return result(code=HttpCode.unauth, message=message, data=data)


def method_error(message='', data=None):
    return result(code=HttpCode.methoderror, message=message, data=data)


def server_error(message='', data=None):
    return result(code=HttpCode.servererror, message=message, data=data)