views.py
from django.shortcuts import render,HttpResponsefrom django import formsimport jsonimport refrom django.core.exceptions importValidationError# Create your views here.def mobile_validate(value):mobile_re = re.compile(r'^(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$')ifnot mobile_re.match(value):raiseValidationError('手機號碼格式錯誤')classInputForm(forms.Form):# 下面使用的變量名必須和html中input標簽的name值相同# forms 的字段類型包括：IntegerField,CharField,URLField,EmailField,DateField等，但是沒有手機號# required=True表示對輸入做驗證# error_messages 自定制提示信息username = forms.CharField(required=True, error_messages={'required':'用戶名不能為空'})password = forms.CharField(required=True,min_length=6,max_length=10,error_messages={'required':'密碼不能為空','min_length':'至少6位','max_length':'至多10位'})num = forms.IntegerField(error_messages={'required':'不能為空','invalid':'必須是數字'})# 自定制驗證方法關鍵就是參數validators，和自己的函數關聯起來phone = forms.CharField(validators=[mobile_validate,],)def login(request):if request.POST:objPost =InputForm(request.POST)ret = objPost.is_valid()if ret:print(objPost.clean())# else:# # from django.forms.utils import ErrorDict# print(type(objPost.errors),objPost.errors.as_json())return render(request,'login.html',{'data': objPost})else:objGet =InputForm()return render(request,'login.html',{'data': objGet})
login.html
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Title</title><style>.error-msg{color:red;}</style></head><body><form action="/login/" method="POST"><div><div>{{ data.username }}{%if data.errors.username %}<span class="error-msg">{{ data.errors.username.0}}</span>{% endif %}</div><div>{{ data.password }}{%if data.errors.password %}<span class="error-msg">{{ data.errors.password.0}}</span>{% endif %}</div><div>{{ data.num }}{%if data.errors.num %}<span class="error-msg">{{ data.errors.num.0}}</span>{% endif %}</div><div>{{ data.phone }}{%if data.errors.phone %}<span class="error-msg">{{ data.errors.phone.0}}</span>{% endif %}</div><input type="submit" value="提交"/></div></form></body></html>
效果圖：
上面這個圖的提示應該是django 1.10 版本 新增
