Question

django写的。在点击查询后会显示查询到的数据。但是现在点击查询后并没有数据。有大佬知道怎么解决吗？

django框架写的。本来在点击查询后会显示查询到的数据（效果如图四）。但是现在点击查询后，并没有数据（图三）。有大佬知道怎么解决吗？网页代码是第一张图。views部分代码。def select(request): if request.method == "POST": id = request.POST.get('id') stu_data = StudentInfo.objects.get(stu_id=id) stu_id = stu_data.stu_id stu_name = stu_data.stu_name stu_phone = stu_data.stu_phone stu_addr = stu_data.stu_addr stu_faculty = stu_data.stu_faculty stu_major = stu_data.stu_major stu_class = stu_data.stu_class stu_course = StudentGrade.objects.filter(stu_id=id) dct = {} for stu in stu_course: dct[stu.cour_name] = stu.cour_grade context = { 'stu_id': stu_id, 'stu_name': stu_name, 'stu_phone': stu_phone, 'stu_addr': stu_addr, 'stu_faculty': stu_faculty, 'stu_major': stu_major, 'stu_class': stu_class, 'course_data': dct, 'msg': True } return render(request,'studentmanage/查询.html',context) else: id = request.POST.get('id') stu_id = id context = { 'msg': False, 'stu_id': stu_id } return render(request, 'studentmanage/查询.html', context)

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Answer 1

数据库查询语句有没有问题，表里面有对应的字段么

追问

表里面有对应字段。会不会和多级跳转有关系？

跳转关系：点击图一“轨道交通学院”跳转到图二，再点击“查询学生信息”跳转到图三。图四至图六是这三个网页的代码。