Django

Question

我得到的错误：

视图 report.views.csv_gen_universal 没有 return HttpResponse 对象。

def csv_gen_universal(req):
    if req.POST['csvinputid']:
        # Create the HttpResponse object with the appropriate CSV header.
        response = HttpResponse(content_type='text/csv')
        response['Content-Disposition'] ='attachment;filename="M_Wall_report.csv"'
        writer = csv.writer(response)
        content = str(req.POST['csvinputid']).split("^~^")
        for m in content :
            p = m.split("*~*")
            writer.writerow(p)
        return response
    else:
        HttpResponse("Wrong Place")

Answer 1

您忘记在 else 语句中添加 return。你的代码应该是

def csv_gen_universal(req):
    if req.POST['csvinputid']:
        # Create the HttpResponse object with the appropriate CSV header.
        response = HttpResponse(content_type='text/csv')
        response['Content-Disposition'] ='attachment;filename="M_Wall_report.csv"'
        writer = csv.writer(response)
        content = str(req.POST['csvinputid']).split("^~^")
        for m in content :
            p = m.split("*~*")
            writer.writerow(p)
        return response
    else:
        return HttpResponse("Wrong Place")

Django - VIew 没有 return HttpResponse 对象，即使 HttpResponse returns

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django-views