1. 引入messages模块

from django.contrib import messages

2. 把messages写入view中

@csrf_exemptdef search(request): if request.method == 'GET': bookname = request.GET.get('bookname') bookinfo = Book.objects.filter(bookname=bookname) is_staff = request.user.is_staff username = request.user.username gonggao = Gonggao.objects.all().order_by("-c_time") liuyanban_all = liuyan.objects.all().order_by("-c_time") c2 = JieInfo.objects.filter(u_name=username, book_name=bookname) c3 = JieInfo.objects.filter(u_name=username).count() if username == '': messages.error(request, '亲，请您先登录,才能使用该功能。') return redirect('/') else: if bookname == '': messages.error(request, '亲，搜索内容不能为空哦。') return redirect('/') elif c2.exists(): messages.error(request, '对不起，您不能再次借阅该图书了。') return redirect('/') elif c3 == 5: messages.error(request, '对不起，您将超出图书馆借阅图书数量限制。') return redirect('/') else: if bookinfo.exists(): return render(request, "systeam/searched.html", {'bookinfo': bookinfo, 'username': username, 'is_staff': is_staff}) else: messages.error(request, '亲，没有这本书呢。') return redirect('/') else: return render(request, "systeam/searched.html", {'username': username})

3. 把messages渲染到页面中

{% if messages %} <ul class="messages"> {% for message in messages %} <li{%if message.tags %} class="{{ message.tags }}"{% endif %}> <div class="m_title"> {{ message.tags }} <a href="" id=" rel="external nofollow" rel="external nofollow" a_tuichu"> <i class="iconfont icon-fork"></i> </a> </div> <div id="m_box"> {{ message }} </div> <a href="" id=" rel="external nofollow" rel="external nofollow" a_sure"> <button id="button_sure"> 确认 </button> </a> </li> {% endfor %} </ul> {% endif %}

以上这篇Django中提示消息messages的设置方式就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。