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修改我的服务器上的js文件并重新加载它？

发布于 2024-12-03 16:43:58 字数 286 浏览 1 评论 0原文

如果我在 </code> 中加载了一个 js 文件，其下方有一个保存按钮，我可以将其保存到服务器上现有的 js 文件中，然后重新加载它吗？基本上，我想做的就像所见即所得一样，除了我希望能够将 js 保存到现有文件中。

我正在使用 document.write ("") 加载 js 文件，该文件有效。

顺便说一句，这个网站不允许我放置“<”在文档中写。

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九歌凝 2024-12-10 16:43:58

简短的回答：是的，但从你的帖子来看，我认为你不会觉得这很容易。

更深入地说，您需要使用服务器端语言（例如 PHP）来实现此目的。

我不会介绍如何设置 PHP，我们假设您知道这一点，如果您不知道，那么您就有一个很好的借口去谷歌搜索:) 但是，这里有一个简单的工作示例脚本。

警告：允许人们写入服务器上的文件存在很多陷阱。您当然不想让除了高度信任的人之外的任何人都可以访问这样的东西。除非您了解其含义，否则我不能过分强调您对此类事情应该多么小心。

<?php

// Change this to the file you want to be editing
// This path is relative to this script
// So if this script is in /somewhere/something/scripts/save.php
// And your file is at /somewhere/something/files/hello.txt
// This should read: $fname = "../files/hello.txt";
$fname = "something.txt";
// Now don't touch anything else :)



// This checks if we've submitted the file
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
    // Get the posted content
    $content = $_POST['content'];

    // Open the file, or exit with an error message if we can't
    if (!$handle = fopen($fname, 'w')) {
        echo "Cannot open file ($filename)";
        exit;
    }
    // Write the new content into the file
    fwrite($fhandle, $content);
    fclose($fhandle);
}

// Get the contents of the file
$content = file_get_contents($fname);

?>
<form action="" method="post">
    <p>Editing <?php echo $fname; ?></p>
    <textarea name="content"><?php echo $content; ?></textarea>
    <input type="submit" value="Save" />
</form>

Short answer: Yes, but from your post I don't think you'd find it easy.

In some more depth, you'll need to use a server-side language such as PHP for this.

I won't go into how to get set up with PHP, we'll assume you know that, and if you don't then you have a great excuse to go Googling :) However, here's a simple working example script for you.

WARNING: There are a lot of pitfalls with allowing people to write to files on your server. You CERTAINLY don't want to make something like this accessible to anyone except HIGHLY trusted people. I can't over-emphasise how careful you should be with something like this unless you understand the implications of it.

<?php

// Change this to the file you want to be editing
// This path is relative to this script
// So if this script is in /somewhere/something/scripts/save.php
// And your file is at /somewhere/something/files/hello.txt
// This should read: $fname = "../files/hello.txt";
$fname = "something.txt";
// Now don't touch anything else :)



// This checks if we've submitted the file
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
    // Get the posted content
    $content = $_POST['content'];

    // Open the file, or exit with an error message if we can't
    if (!$handle = fopen($fname, 'w')) {
        echo "Cannot open file ($filename)";
        exit;
    }
    // Write the new content into the file
    fwrite($fhandle, $content);
    fclose($fhandle);
}

// Get the contents of the file
$content = file_get_contents($fname);

?>
<form action="" method="post">
    <p>Editing <?php echo $fname; ?></p>
    <textarea name="content"><?php echo $content; ?></textarea>
    <input type="submit" value="Save" />
</form>

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