我正在实施一项简单的练习来教授密码学方法。目前我正在使用Caesar Cipher。 Web应用程序的工作方式如下，用户输入密钥和明文以生成包含明文的每个字母的动态表单。然后每个表单彼此分开，这意味着每个表单都包含一个有效按钮，以验证加密是否正确完成。
问题在于，当从第二个表单中按下验证按钮时，它总是发送第一个表单信息。我注意到这是因为我在Javascript和python中打印表单的值，它总是打印出第一个表单。
模板：
<div class="form-group">
<label for='id_plaintext'>
Plaintext:
</label>
<form onsubmit="return false;" method="GET">
{% csrf_token %}
<div class="col-sm-5 col-xs-6 col-md-4">
{{ formPlaintext.plaintext }}
</div>
<button name="action" id="encryptButton" class="btn btn-primary" value="encrypt">Encrypt</button>
</form>
<br> {% if formPlaintext.errors %}
<div class="alert alert-danger" role="alert">
<strong>{{ formPlaintext.plaintext.errors }}</strong>
</div>
{% endif %}
</div>
{% for letterOfWord, keyToUse, letterToFill, letterNumber in equations %}
<form method="GET" class="form-inline">
{% csrf_token %}
<div class="row">
<div class="col-sm-12 col-xs-12 col-lg-12 col-md-12">
<div class="alert alert-info col-sm-12 col-xs-12 col-lg-12 col-md-12">
Excercise Number {{letterNumber}} <br>
( {{ letterOfWord }} + {{ keyToUse }} ) mod 26 = {{ letterToFill }}
<button name="action" class="validate">
Validate
</button>
</div>
<div id="notification">
{% include "content/caesarValidation.html" %}
</div>
</div>
</div>
</form>
{% endfor %}
使用Javascript：
$("#encryptButton").on({
click: function() {
var variable = document.getElementById('id_plaintext');
console.log(variable.value)
$.ajax({
url: "/exampleCaesar",
type: "GET",
data: {
CSRF: 'csrf_token',
plaintext: $('#id_plaintext').val(),
key: $('#id_key').val()
},
success: function(example) {
$('#example1').show();
$('#exampleSection').html(example);
console.log(example);
}
}); //END OF Ajax
} //END OF FUNCTION
}); //END OF encryptButton
$(".validate").on({
click: function(event) {
var variable = document.getElementById('id_letterToFill');
console.log(variable.value)
console.log("Inside validate button function")
event.preventDefault();
$.ajax({
async: true,
url: "/validateCaesar",
type: "GET",
data: {
CSRF: 'csrf_token',
originalLetter: $('#id_letterOfWord').val(),
key: $('#id_keyToUse').val(),
encryptLetter: $('#id_letterToFill').val(),
numberLetter : $('#id_letterNumber').val()
},
success: function(exampleData) {
console.log(exampleData)
$('#notification').html(exampleData)
console.log(exampleData)
}
});
}
});
浏览
def exampleCaesar(request):
if request.is_ajax() and request.method == "GET":
formKey = caesarKey(request.GET or None)
formPlaintext = caesarPlaintext(request.GET or None)
if formKey.is_valid():
if formPlaintext.is_valid():
wordToEncrypt = request.GET.get('plaintext')
wordToEncrypt = wordToEncrypt.upper()
wordLength = len(request.GET.get('plaintext'))
key = request.GET.get('key')
print(wordToEncrypt)
print(key)
equations = []
formKey = caesarKey(request.GET or None)
letterNumber = 1
for x in range(wordLength):
exampleForm = caesarCipherExample(initial={'letterOfWord' : wordToEncrypt[x], 'keyToUse' : key, 'letterNumber' : letterNumber})
# print(exampleForm)
if exampleForm.is_valid:
equations.append(exampleForm)
letterNumber += 1
print(equations)
context = { 'equations' : equations,
'formKey' : formKey,
'formPlaintext': formPlaintext
}
html = render(request, "content/exampleCaesar.html", context)
return HttpResponse(html)
else:
print(formPlaintext.errors)
context = { 'formKey' : formKey,
'formPlaintext': formPlaintext
}
html = render(request, "content/exampleCaesar.html", context)
return HttpResponse(html)
else:
print(formKey.errors)
def validateCaesar(request):
obj = CaesarCipher()
print("You're in!")
if request.is_ajax() and request.method == 'GET':
formExample = caesarCipherExample(request.GET or None)
encryptLetter = request.GET.get('encryptLetter').upper()
originalLetter = request.GET.get('originalLetter')
key = int(request.GET.get('key'))
print(encryptLetter)
print(originalLetter)
print(key)
if obj.validateLetter(encryptLetter, originalLetter, key):
listOfCorrect = [request.GET.get('numberLetter'), 'true']
print(listOfCorrect)
html = render(request, "content/caesarValidation.html", {'listOfCorrect' : listOfCorrect})
return HttpResponse(html)
else:
listOfCorrect = [request.GET.get('numberLetter'), 'false']
print(listOfCorrect)
html = render(request, "content/caesarValidation.html", {'listOfCorrect' : listOfCorrect})
return HttpResponse(html)
caesarValidation模板：
<!doctype html>
{% if listOfCorrect %}
<div id="notification">
{% if "true" in listOfCorrect %}
<div class="alert alert-success">
Success!
</div>
{% else %}
<div class="alert alert-danger">
Fail!
</div>
{% endif %}
{% endif %}
</div>
下面是forms.py，其中包含模板中使用的表单：
class caesarCipherExample(forms.Form):
letterOfWord = forms.CharField(max_length = 1, widget=forms.TextInput(attrs={'class' : 'form-control', 'class' : 'no-border', 'style' : 'width:20px; background-color: #D9EDF7; text-align: left;', 'readonly' : 'readonly'}))
keyToUse = forms.DecimalField(max_value = 26, min_value = 1, initial = 1, required = True, widget=forms.NumberInput(attrs={'class' : 'form-control', 'class' : 'no-border', 'style' : 'width:30px; background-color: #D9EDF7; text-align: right;', 'readonly' : 'readonly'}))
letterToFill = forms.CharField(max_length = 1, widget=forms.TextInput(attrs={'class' : 'form-control','style' : 'width:60px'}))
letterNumber = forms.DecimalField(widget=forms.TextInput(attrs={'class' : 'form-control', 'class' : 'no-border', 'style' : 'width:20px; background-color: #D9EDF7; text-align: left;', 'readonly' : 'readonly'}))
答案 0 :(得分：0)
您的表单包含多次，但每次都可能使用相同的字段ID值。但在HTML中，ID必须是唯一的。
不是通过ID获取字段值，而是需要使用jQuery来查找父表单，并从那里获取其值。类似的东西：
var form = $(this).parent('form');
var variable = form.find('input[name=letterToFill]');
等等其他值。