如何从url参数预先填充html表单输入字段？

I have a vanilla html page which has a form in it. A requirement has come in to be able to pre-populate the form via the url. Something like:

我有一个vanilla html页面，里面有一个表单。已经要求能够通过URL预先填充表单。就像是：

http://some.site.com/somePage.html?forename=Bob&surname=Jones

I can't seem to find any simple solution to this. Can someone point me in the right direction with some javascript to accomplish this? Happy to use a javascript solution, but I'd prefer to avoid pulling in an entire library just for this single use (none are currently used). Thanks.

我似乎无法找到任何简单的解决方案。有人可以用一些javascript指向我正确的方向来完成这个吗？很高兴使用javascript解决方案，但我宁愿避免只为这一次使用而拉入整个库（目前没有使用）。谢谢。

3 个解决方案

#1

Use a custom query string Javascript function.

使用自定义查询字符串Javascript函数。

function querySt(ji) {

    hu = window.location.search.substring(1);
    gy = hu.split("&");

    for (i=0;i<gy.length;i++) {
        ft = gy[i].split("=");
        if (ft[0] == ji) {
            return ft[1];
        }
    }
}
var koko = querySt("koko");

Then assign the retrieved value to the input control; something like:

然后将检索到的值分配给输入控件;就像是：

document.getElementById('mytxt').value = koko;

#2

Are you using PHP? If so, that makes things much easier. Assuming your link as above, you can use:

你在用PHP吗？如果是这样，那会让事情变得更容易。假设您的链接如上，您可以使用：

<?php
$forename = $_GET['forename'];
$surname = $_GET['surname'];
?>
----------
<input id='forename' type='text' value='<?php echo $forename; ?>' >
<input id='surname' type='text' value='<?php echo $surname; ?>' >

That should pre-populate for you.

这应该预先填充你。

#3

function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');

    for(var i = 0; i < hashes.length; i++)
        {
         hash = hashes[i].split('=');
         vars.push(hash[0]);
         vars[hash[0]] = hash[1];
         }

     return vars;
}

var get = getUrlVars();

//returns get['forename'] == bob; surname == jones

#1