普通Form表单的提交 !-- name:index.html -- !DOCTYPE html html lang="en" head meta charset="UTF-8" titleTitle/title /head body form action="/" method="post" p账号:input type="text" name="username"span{{ error.username }}/span/p p密码
普通Form表单的提交
<!-- name:index.html --><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/" method="post">
<p>账号:<input type="text" name="username"><span>{{ error.username }}</span></p>
<p>密码:<input type="password" name="password"><span>{{ error.password }}</span></p>
<input type="submit" value="提交请求">
</form>
</body>
</html># name: views.py
from django.shortcuts import render,HttpResponse
def index(request):
if request.method == "GET":
return render(request,"index.html")
else:
username = request.POST.get("username")
password = request.POST.get("password")
error = {"username":"","password":""}
if len(username) > 10:
error["username"]="用户名不能大于10"
if len(password) < 5:
error["password"] = "密码不能小于5"
return render(request,"index.html",{"error":error})
Form实现登录表单
<!--name:index.html--><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/" method="post" novalidate>
<p>账号: {{ form.username }} {{ form.username.errors.0 }}</p>
<p>密码: {{ form.password }} {{ form.errors.password }}</p>
<p>重复: {{ form.RepeatPass }} {{ form.errors.RepeatPass }}</p>
<input type="submit" value="提交">
</form>
</body>
</html># name:views.py
from django.shortcuts import render,HttpResponse
from django.forms import Form,fields,widgets
from django.core.exceptions import ValidationError
class LoginForm(Form):
username = fields.CharField(
required = True,
max_length = 10,
error_messages={"required":"该字段不能为空"},
widget=widgets.TextInput(attrs={"placeholder":"请输入用户名","class":"form-control"})
)
password = fields.CharField(
required = True,
max_length=10,
error_messages={"required":"密码字段不能为空","min_length":"密码最小长度为5"},
widget=widgets.PasswordInput(attrs={"placeholder":"请输入密码","class":"form-control"})
)
RepeatPass = fields.CharField(
required=True,
max_length=10,
error_messages={"required":"密码字段不能为空","min_length":"密码最小长度为5"},
widget=widgets.PasswordInput(attrs={"placeholder":"重复输入密码","class":"form-control"})
)
# 自定义方法（局部钩子）密码必须包含字母和数字
def clean_password(self):
if self.cleaned_data.get("password").isdigit() or self.cleaned_data.get("password").isalpha():
raise ValidationError("密码必须包含数字和字母")
else:
return self.cleaned_data["password"]
# 自定义方法（全局钩子, 检验两个字段），检验两次密码是否一致
def clean_RepeatPass(self):
if self.cleaned_data.get("password") != self.cleaned_data.get("RepeatPass"):
raise ValidationError("两次输入密码不正确")
else:
return self.cleaned_data
def index(request):
if request.method =="GET":
form = LoginForm()
return render(request, "index.html", {"form": form})
else:
form = LoginForm(request.POST)
if form.is_valid():
# username = form.data['username']
data = form.cleaned_data
username = data.get("username")
password = data.get("password")
print(username,password)
return render(request, "index.html", {"form": form})
return render(request, "index.html", {"form": form})
其他常用Form表单
<!--name: index.html--><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/" method="post">
{% for field in form %}
<p>{{ field.label_tag }} {{ field }} {{ field.errors.0 }}</p>
{% endfor %}
<input type="submit" value="提交" />
</form>
</body>
</html># name: views.py
from django.shortcuts import render,HttpResponse
from django.forms import Form,fields,widgets
class MyForm(Form):
hobby = fields.ChoiceField(
label="单选框:",
required=True,
initial=1, # 默认选择1号
choices=( (1,"篮球"),(2,"足球"),(3,"乒乓球"),(4,"滚球")),
widget=widgets.RadioSelect()
)
select = fields.ChoiceField(
label="单选框(默认):",
required=True,
initial=1,
choices=( (1,"篮球"),(2,"足球"),(3,"乒乓球"),(4,"滚球")),
widget=widgets.Select()
)
multiple = fields.MultipleChoiceField(
label="复选框",
choices=((1, "篮球"), (2, "足球"), (3, "羽毛球"), (4, "排球")),
initial=[2, 4],
widget=widgets.SelectMultiple()
)
checkbox = fields.ChoiceField(
label="单项复选框",
initial="checked", # 默认为勾选
widget=widgets.CheckboxInput()
)
multselect = fields.MultipleChoiceField(
label="多项复选框",
choices=((1, "篮球"), (2, "足球"), (3, "羽毛球"), (4, "排球")),
initial=[1, 3],
widget=widgets.CheckboxSelectMultiple()
)
data = fields.DateField(
label="选择日期",
widget = widgets.DateInput(attrs={"type":"date"})
)
def index(request):
if request.method=="GET":
form = MyForm()
return render(request,"index.html",{"form":form})
else:
form = MyForm(request.POST)
if form.is_valid():
data = form.cleaned_data
print(data.get("hobby"))
return HttpResponse("hello lyshark")
Form实现用户注册
<!--name: index.html--><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>
<form action="/" method="post">
<p>{{ form.username.label }} {{ form.username }}</p>
<p>{{ form.password.label }} {{ form.password }}</p>
<p>{{ form.mobile.label }} {{ form.mobile }} </p>
<p>{{ form.email.label }} {{ form.email }} </p>
<p>{{ form.text }} </p>
<p><input type="submit" value="提交请求"></p>
</form>
</div>
</body>
</html># name: models.py
from django.db import models
class User(models.Model):
id = models.AutoField(primary_key=True)
username = models.CharField(max_length=64)
password = models.CharField(max_length=32)
mobile = models.CharField(max_length=32)
email = models.EmailField(max_length=64)
text = models.CharField(max_length=128)# name: views.py
from django.shortcuts import render,HttpResponse
from MyWeb import models
from django.forms import Form,fields,widgets
from django.core.validators import RegexValidator
from django.core.exceptions import ValidationError
class UserForm(Form):
username = fields.CharField(
label = "账号: ", # 给表单加一个标签
required = True, # 不允许字段为空值
min_length=4, # 设置最小长度
max_length = 10, # 设置最大长度
validators=[ RegexValidator(r'^[0-9a-zA-Z]+$',"用户账号只能使用,0-9a-z") ],
error_messages={"required":"该字段不能为空","invalid":"无效的用户名",
"min_length":"最小长度为5","max_length":"最大长度为10"},
widget=widgets.TextInput(attrs={"placeholder":"请输入用户名","class":"form-control"})
)
password = fields.CharField(
label = "密码: ",
required = True,
min_length=5,
max_length=10,
error_messages={"required":"密码字段不能为空","min_length":"密码最小长度为5"},
widget=widgets.PasswordInput(attrs={"placeholder":"请输入密码","class":"form-control"})
)
mobile = fields.CharField(
label = "手机: ",
required=True,
validators=[RegexValidator('[0-9]', "手机号必须是数字")],
error_messages={"required":"该字段不能为空"},
widget=widgets.TextInput(attrs={"placeholder": "手机号","class": "form-control"})
)
email = fields.EmailField(
label="邮箱: ",
required=True,
error_messages={"required":"邮箱不能为空！！","invalid":"无效的邮箱"},
widget=widgets.EmailInput(attrs={"placeholder": "邮箱", "class": "form-control"})
)
text = fields.CharField(
required=True,
widget=widgets.Textarea(attrs={"placeholder": "畅言,欢迎留言...", "class": "form-control",
"style":"margin: 0px; width: 203px; height: 98px;"})
)
def index(request):
if request.method =="GET":
form = UserForm()
return render(request, "index.html", {"form": form})
else:
form = UserForm(request.POST)
if form.is_valid():
# username = form.data['username']
data = form.cleaned_data
username = data.get("username")
is_exits = models.User.objects.filter(username="admin").count()
if is_exits != 0:
return HttpResponse("您注册的用户已存在")
else:
models.User.objects.create(**data)
return HttpResponse("恭喜您的账号注册完成了")
else:
return render(request, "index.html", {"form": form.errors})
return render(request, "index.html", {"form": form})
实现用户验证
index.html
<head><meta charset="UTF-8">
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
</head>
<body>
<form action="/" method="post">
<p> {{ form.email }}</p>
<p> {{ form.code }} <a id="fetch_code" class="fetch-code" href="javascript:void(0);">获取验证码</a></p>
<input type="submit" value="提交">
</form>
<script type="text/javascript">
$("#fetch_code").click(function(){
var email = $("#email").val(); // 获取到用户邮箱
if(email.trim().length != 0)
{
$("#fetch_code").empty();
$("#fetch_code").text("发送成功");
$.ajax({
url:"/send_msg/",
type:"POST",
data:{email:email},
dataType:"json",
success:function(recv){
}
})
}
})
</script>
models.py
from django.db import modelsclass SendMsg(models.Model):
id = models.AutoField(primary_key=True)
code = models.CharField(max_length=6)
email = models.CharField(max_length=32, db_index=True)
count = models.IntegerField(default=0)
times = models.IntegerField(default=0)
class UserInfo(models.Model):
id = models.AutoField(primary_key=True)
username = models.CharField(max_length=32, unique=True)
password = models.CharField(max_length=32)
email = models.CharField(max_length=32, unique=True)
views.py
from django.shortcuts import render,HttpResponsefrom django.core.mail import send_mail, send_mass_mail, EmailMultiAlternatives
import re,time,random
from MyWeb import models
def SendMail(rand,user):
title = "本次注册验证码是: {} 十分钟以内有效.".format(rand)
ret = send_mail("Django 邮件通知",title,"smtpwho@163.com",[user])
if ret:
return 1
return 0
def send_msg(request):
if request.method=="POST":
email = request.POST.get("email")
ret = re.match(r'^[0-9a-zA-Z\_\-]+(\.[0-9a-zA-Z\_\-]+)*@[0-9a-zA-Z]+(\.[0-9a-zA-Z]+){1,}$', email)
if ret == None:
print("不合法")
else:
ret = models.UserInfo.objects.filter(email=email).count()
if ret == 1:
print("你的邮箱已经注册了,请换一个..")
else:
ret = models.SendMsg.objects.filter(email=email).count() # 查询出如果存在sendmsg表里,则不能让其注册
if ret !=0:
print("等待超时,暂时不嫩注册..")
times = int(time.time())
if times >=models.SendMsg.objects.filter(email=email).values("times"):
print(times)
else:
print("时间还没到")
else:
rand = random.randint(10000,20000)
if SendMail(rand,email):
times = int(time.time()+60) # 一分钟只能注册一次
models.SendMsg.objects.create(email=email,code=rand,times=times)
return render(request,"reg.html")
def reg(request):
if request.method == "POST":
email = request.POST.get("email")
code = request.POST.get("code")
ret = models.SendMsg.objects.filter(email=email).values("email","code")[0]
if ret['email']==email and ret['code']==code:
print("正确了")
username = request.POST.get("username")
password = request.POST.get("password")
ret = models.UserInfo.objects.filter(username=username).count()
if ret == 0:
# 等于0说明没有这个用户,可以注册
models.UserInfo.objects.create(username=username,password=password,email=email)
print("注册完成了")
else:
print("这个账号重复了,请换一个...")
else:
print("验证码错误")
return render(request, "reg.html")
urls.py
from django.contrib import adminfrom django.urls import path
from MyWeb import views
urlpatterns = [
path('admin/', admin.site.urls),
path("reg/",views.reg),
path("send_msg/",views.send_msg)
]
settings.py
STATIC_URL = '/static/'EMAIL_USER_TLS = True
EMAIL_PORT = 25
EMAIL_HOST = "smtp.163.com"
EMAIL_HOST_USER = "smtpwho@163.com"
EMAIL_HOST_PASSWORD = "123456789"
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