django html form表单提交表单提交,django ajax提交form表单数据

from django.shortcuts importrenderfrom django.shortcuts importredirectfrom django.shortcuts importHttpResponsefrom django importforms#模版

classLoginForm(forms.Form):#模版中的元素

user = forms.CharField(min_length=6,error_messages={"required": '用户名不能为空','min_length': '用户名长度不能小6'})

email= forms.EmailField(error_messages={"required": '邮箱不能为空','invalid': '邮箱格式错误'})classIndexForm(forms.Form):#模版中的元素

user = forms.CharField(min_length=6,error_messages={"required": '用户名不能为空','min_length': '用户名长度不能小6'})

email= forms.EmailField(error_messages={"required": '邮箱不能为空','invalid': '邮箱格式错误'})

favor=forms.MultipleChoiceField(

choices=[(1,'小虎'),(2,'小小虎'),(3,'小B虎')]

)importjsonfrom datetime importdatefrom datetime importdatetimedefindex(request):

obj=IndexForm()return render(request,'index.html',{'obj': obj})defedit_index(request):

obj= IndexForm({'user': 'root','email': '[e-mail]','favor': [2,3]})return render(request,'index.html',{'obj': obj})deflogin(request):if request.method == "GET":#数据库中获取

obj =LoginForm()return render(request,'login.html',{'oo': obj})elif request.method == "POST":"""obj = LoginForm(request.POST)

# 验证

status = obj.is_valid()

print(status)

value_dict = obj.clean()

print(value_dict)

error_obj = obj.errors.as_json()

print(error_obj)"""obj=LoginForm(request.POST)ifobj.is_valid():

value_dict=obj.clean()print(value_dict)#create(**value_dict)

else:#封装了所有的错误信息

#print(obj.errors['email'][0])

#print(obj.errors["user"][0])

#print(type(error_obj))

from django.forms.utils importErrorDictpass

return render(request, 'login.html',{'oo': obj})deflogin_ajax(request):if request.method == "GET":return render(request, 'login_ajax.html')elif request.method == "POST":

ret= {'status': True, 'error':None, 'data': None}

obj=LoginForm(request.POST)ifobj.is_valid():print(obj.clean())else:#方式一

#res_str = obj.errors.as_json() # res_str是一个字符串

#ret['status'] = False

#ret['error'] = res_str

#两次反序列化

#方式二：

ret['status'] =False

ret['error'] = obj.errors.as_data() ## {'user': [ValidationError(['用户名长度不能小6'])], 'email': [ValidationError(['邮箱格式错误'])]}

## 一次反序列化

return HttpResponse(json.dumps(ret,cls=JsonCustomEncoder))from django.core.validators importValidationErrorclassJsonCustomEncoder(json.JSONEncoder):defdefault(self, field):ifisinstance(field, ValidationError):return {'code': field.code, 'message': field.message}else:returnjson.JSONEncoder.default(self, field)"""def login(request):

if request.method == "GET":

return render(request,'login.html')

elif request.method == "POST":

# 不爽

u = request.POST.get('user')

e = request.POST.get('email')

p = request.POST.get('pwd')

# 判断用户输入是否为空，提示用户那个错误

# ...

# 判断某种格式是否正确,提示用户那个错误

# ..

# 数据库校验：

# filter(user=u,email=e,pwd=p) # filter(**{})

# create(user=u,email=e,pwd=p) # create(**{})

# 只要上述条件有一个不满足，

# 页面上一次提交的数据，无法保留(Form提交)

return render(request,'login.html', {})

# return redirect('/login.html')"""