将表单数据发送到HTML页面，并在没有任何PHP / Python的情况下使用Javascript进行检索

问题描述

我已经阅读了一些关于将表单数据发送到另一个html页面的文章和问题线索，但是这些解决方案并没有为我解决问题。

基本上，我有一个数据表格：

 < form id =registrationname =registrationaction =register.htmlmethod =POST> 
  

在register.html中，我尝试访问输入文本字段，其中id和name分别为username这：

var x = document.getElementById（registration）。elements.namedItem（username）。value;

控制台声明它不能读取null的属性。我怎样才能用Javascript访问这些值？框架很好，但不是PHP / Python。

解决方案

前几天我碰到类似这样的东西。原来，你可以用jQuery获取值。

  var userName = $（input [type = text] [name = username]）。val（）; 
  

只需将其放入窗体的onsubmit中调用的函数即可。

 < script> 
函数getFormData（）{
 var userName = $（input [type = text] [name = username]）。val（）; 
 //用数据
做你想做的事情返回true; 
} 
< / script> 
< form id =registrationname =registrationaction =register.htmlonsubmit =return getFormData（）;方法= POST > 
< input type =textname =username/> 
< / form> 
  

但是，当您加载下一页时，这不会保留数据。要做到这一点，只需将该值提交到sessionStorage。

  function saveFormData（）{
 var userName = $（输入[类型=文本] [名=用户名]）VAL（）; 
 sessionStorage.setItem（user，userName）; 
返回true; 
} 
  

然后在下一页（您要调用的那一页resgister.html ）您可以使用此代码来检索它。

  var userName = sessionStorage.getItem（user）; 
  

我希望这有助于您！

I've read a few articles and a question thread on sending form data to another html page, but the solutions didn't solve the issue for me.

Basically, I have a form with a bunch of data:

<form id="registration" name="registration" action="register.html" method="POST">

In register.html, I tried accessing an input text field with id and name as "username" with this:

var x = document.getElementById("registration").elements.namedItem("username").value;

The console stated that it cannot read property of null. How can I access these values with Javascript only? Frameworks are fine but not PHP /Python.

解决方案

I ran into something like this the other day. Turns out you can just get the values with jQuery.

var userName = $("input[type=text][name=username]").val();

Just put it into a function that's called in the form's onsubmit.

<script>
  function getFormData() {
    var userName = $("input[type=text][name=username]").val();
    // Do what you want with the data
    return true;
  }
</script>
<form id="registration" name="registration" action="register.html" onsubmit="return getFormData();" method="POST">
  <input type="text" name="username" />
</form>

However, this doesn't keep the data when you load the next page. To do that, just commit the value into sessionStorage.

function saveFormData() {
  var userName = $("input[type=text][name=username]").val();
  sessionStorage.setItem("user", userName);
  return true;
}

And then on the next page (the one you're calling resgister.html) you can use this code to retrieve it.

var userName = sessionStorage.getItem("user");

I hope this helps!

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