自定义模板
403
1 2 3 4 5 6 7 8 9 10 | <!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < title >403-禁止访问</ title > </ head > < body > HTTP 403 - 禁止访问 </ body > </ html > |
404
1 2 3 4 5 6 7 8 9 10 | <!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < title >404-无法找到文件</ title > </ head > < body > HTTP 404- 无法找到文件 </ body > </ html > |
500
1 2 3 4 5 6 7 8 9 10 | <!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < title >500-服务器错误</ title > </ head > < body > HTTP 500 - 内部服务器错误 </ body > </ html > |
编写视图
1 2 3 4 5 6 7 8 9 10 11 | # 全局403、404、500错误自定义页面显示 def page_not_found(request): return render(request, '404.html' ) def page_error(request): return render(request, '500.html' ) def permission_denied(request): return render(request, '403.html' ) |
修改url
1 2 3 4 5 6 7 8 9 10 11 | from .views import page_error, page_not_found, permission_denied urlpatterns = [ # ... ] # 定义错误跳转页面 handler403 = permission_denied handler404 = page_not_found handler500 = page_error |
尝试使用无权限用户访问,看是否会显示该页面
如果不对,修改settings.py中的DEBUG的值
DEBUG = False
注:若是DEBUG=True,有些情况下则不会生效
Http404抛出异常
raise Http404('资源不存在<id:{}>,请访问 xxx 查看')
模板中捕获异常信息
使用{{ exception }}即可捕获异常信息,转换为html代码{{ exception|safe }},可以根据这些代码中的id等,得到跳转的链接,参考
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | <!DOCTYPE html> {% load static %} < html lang = "en" > < style type = "text/css" > .pic { margin: auto; position: absolute; top: 0; left: 0; bottom: 0; right: 0; } </ style > < head > < meta charset = "UTF-8" > < title >404-无法找到文件</ title > < link href = "//cdn.bootcss.com/toastr.js/latest/css/toastr.min.css" rel = "external nofollow" rel = "stylesheet" > </ head > < body > < a href = "//blog.starmeow.cn" rel = "external nofollow" >< img class = "pic" src = "{% static 'errors/404.gif' %}" ></ a > < p hidden>{{ exception|safe }}</ p > < script src = "//code.jquery.com/jquery-3.1.1.min.js" ></ script > < script src = "/uploads/202009/24/16008951911.js" ></ script > < script > toastr.options = { // toastr配置 "closeButton": true, "debug": false, "progressBar": true, "positionClass": "toast-top-center", "showDuration": "400", "hideDuration": "1000", "timeOut": "7000", "extendedTimeOut": "1000", "showEasing": "swing", "hideEasing": "linear", "showMethod": "fadeIn", "hideMethod": "fadeOut" }; $(function () { let redirect_url = $('#redirect_url').text(); if (redirect_url.indexOf('//') === 0 || redirect_url.indexOf('http') === 0) { // 一链接开头才跳转 toastr.warning('{{ exception|safe }}', '跳转中'); setTimeout(function () { //这里写时间到后执行的代码 $(location).attr('href', redirect_url); }, 3000); } }) </ script > </ body > </ html > |
后端
raise Http404('访问资源不存在,即将跳转 <span id="redirect_url">{}</span>'.format('blog.starmeow.cn'))
那么当出现404错误是,jquery就获取该di的值,如果是//或者是http开头,表明可能是个链接(后端请限制格式),前端直接跳转
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