我有2个HTML文件，假设a.html和b.html。在a.html中，我想包括b.html。
在JSF中，我可以这样做:
<ui:include src="b.xhtml" />
这意味着在.xhtml文件中，我可以包含b.xhtml。
我们如何在*.html文件中做到这一点?
当前回答
这些解决方案都不适合我的需要。我在寻找更像php的东西。在我看来，这个解决方案非常简单有效。
include.js - - - >
void function(script) {
const { searchParams } = new URL(script.src);
fetch(searchParams.get('src')).then(r => r.text()).then(content => {
script.outerHTML = content;
});
}(document.currentScript);
index . html - - - >
<script src="/include.js?src=/header.html">
<main>
Hello World!
</main>
<script src="/include.js?src=/footer.html">
可以做一些简单的调整来创建include_once、require和require_once，它们可能都很有用，这取决于您正在做什么。下面是一个简短的例子。
include_once - - - >
var includedCache = includedCache || new Set();
void function(script) {
const { searchParams } = new URL(script.src);
const filePath = searchParams.get('src');
if (!includedCache.has(filePath)) {
fetch(filePath).then(r => r.text()).then(content => {
includedCache.add(filePath);
script.outerHTML = content;
});
}
}(document.currentScript);
希望能有所帮助!
其他回答
目前还没有针对该任务的直接HTML解决方案。即使是HTML导入(这是永久的草案)也不会做这件事，因为Import != Include和一些JS魔法无论如何都是需要的。 我最近写了一个VanillaJS脚本，它只是为了将HTML包含到HTML中，没有任何复杂性。
只要放在你的。html中
<link data-wi-src="b.html" />
<!-- ... and somewhere below is ref to the script ... -->
<script src="wm-html-include.js"> </script>
它是开源的，可能会给你一个想法(我希望)
我的解决方案类似于上面的lolo。但是，我通过JavaScript的文档插入HTML代码。编写而不是使用jQuery:
a.html:
<html>
<body>
<h1>Put your HTML content before insertion of b.js.</h1>
...
<script src="b.js"></script>
...
<p>And whatever content you want afterwards.</p>
</body>
</html>
研究:
document.write('\
\
<h1>Add your HTML code here</h1>\
\
<p>Notice however, that you have to escape LF's with a '\', just like\
demonstrated in this code listing.\
</p>\
\
');
我反对使用jQuery的原因是jQuery.js的大小约为90kb，我想保持加载的数据量尽可能小。
为了得到正确转义的JavaScript文件，你可以使用下面的sed命令:
sed 's/\\/\\\\/g;s/^.*$/&\\/g;s/'\''/\\'\''/g' b.html > escapedB.html
或者只是使用以下方便的bash脚本作为Github上的Gist发布，它自动完成所有必要的工作，将b.html转换为b.js: https://gist.github.com/Tafkadasoh/334881e18cbb7fc2a5c033bfa03f6ee6
感谢Greg Minshall改进的sed命令，它还转义了反斜杠和单引号，这是我最初的sed命令没有考虑到的。
另外，对于支持模板字面量的浏览器，以下方法也适用:
研究:
document.write(`
<h1>Add your HTML code here</h1>
<p>Notice, you do not have to escape LF's with a '\',
like demonstrated in the above code listing.
</p>
`);
Web组件
我创建了以下类似JSF的web组件
<ui-include src="b.xhtml"><ui-include>
你可以在你的页面中使用它作为常规的html标签(在包括snippet js代码之后)
customElements.define('ui-include', class extends HTMLElement { async connectedCallback() { let src = this.getAttribute('src'); this.innerHTML = await (await fetch(src)).text();; } }) ui-include { margin: 20px } /* example CSS */ <ui-include src="https://cors-anywhere.herokuapp.com/https://example.com/index.html"></ui-include> <div>My page data... - in this snippet styles overlaps...</div> <ui-include src="https://cors-anywhere.herokuapp.com/https://www.w3.org/index.html"></ui-include>
I came to this topic looking for something similar, but a bit different from the problem posed by lolo. I wanted to construct an HTML page holding an alphabetical menu of links to other pages, and each of the other pages might or might not exist, and the order in which they were created might not be alphabetical (nor even numerical). Also, like Tafkadasoh, I did not want to bloat the web page with jQuery. After researching the problem and experimenting for several hours, here is what worked for me, with relevant remarks added:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/application/html; charset=iso-8859-1">
<meta name="Author" content="me">
<meta copyright="Copyright" content= "(C) 2013-present by me" />
<title>Menu</title>
<script type="text/javascript">
<!--
var F000, F001, F002, F003, F004, F005, F006, F007, F008, F009,
F010, F011, F012, F013, F014, F015, F016, F017, F018, F019;
var dat = new Array();
var form, script, write, str, tmp, dtno, indx, unde;
/*
The "F000" and similar variables need to exist/be-declared.
Each one will be associated with a different menu item,
so decide on how many items maximum you are likely to need,
when constructing that listing of them. Here, there are 20.
*/
function initialize()
{ window.name="Menu";
form = document.getElementById('MENU');
for(indx=0; indx<20; indx++)
{ str = "00" + indx;
tmp = str.length - 3;
str = str.substr(tmp);
script = document.createElement('script');
script.type = 'text/javascript';
script.src = str + ".js";
form.appendChild(script);
}
/*
The for() loop constructs some <script> objects
and associates each one with a different simple file name,
starting with "000.js" and, here, going up to "019.js".
It won't matter which of those files exist or not.
However, for each menu item you want to display on this
page, you will need to ensure that its .js file does exist.
The short function below (inside HTML comment-block) is,
generically, what the content of each one of the .js files looks like:
<!--
function F000()
{ return ["Menu Item Name", "./URLofFile.htm", "Description string"];
}
-->
(Continuing the remarks in the main menu.htm file)
It happens that each call of the form.appendChild() function
will cause the specified .js script-file to be loaded at that time.
However, it takes a bit of time for the JavaScript in the file
to be fully integrated into the web page, so one thing that I tried,
but it didn't work, was to write an "onload" event handler.
The handler was apparently being called before the just-loaded
JavaScript had actually become accessible.
Note that the name of the function in the .js file is the same as one
of the pre-defined variables like "F000". When I tried to access
that function without declaring the variable, attempting to use an
"onload" event handler, the JavaScript debugger claimed that the item
was "not available". This is not something that can be tested-for!
However, "undefined" IS something that CAN be tested-for. Simply
declaring them to exist automatically makes all of them "undefined".
When the system finishes integrating a just-loaded .js script file,
the appropriate variable, like "F000", will become something other
than "undefined". Thus it doesn't matter which .js files exist or
not, because we can simply test all the "F000"-type variables, and
ignore the ones that are "undefined". More on that later.
The line below specifies a delay of 2 seconds, before any attempt
is made to access the scripts that were loaded. That DOES give the
system enough time to fully integrate them into the web page.
(If you have a really long list of menu items, or expect the page
to be loaded by an old/slow computer, a longer delay may be needed.)
*/
window.setTimeout("BuildMenu();", 2000);
return;
}
//So here is the function that gets called after the 2-second delay
function BuildMenu()
{ dtno = 0; //index-counter for the "dat" array
for(indx=0; indx<20; indx++)
{ str = "00" + indx;
tmp = str.length - 3;
str = "F" + str.substr(tmp);
tmp = eval(str);
if(tmp != unde) // "unde" is deliberately undefined, for this test
dat[dtno++] = eval(str + "()");
}
/*
The loop above simply tests each one of the "F000"-type variables, to
see if it is "undefined" or not. Any actually-defined variable holds
a short function (from the ".js" script-file as previously indicated).
We call the function to get some data for one menu item, and put that
data into an array named "dat".
Below, the array is sorted alphabetically (the default), and the
"dtno" variable lets us know exactly how many menu items we will
be working with. The loop that follows creates some "<span>" tags,
and the the "innerHTML" property of each one is set to become an
"anchor" or "<a>" tag, for a link to some other web page. A description
and a "<br />" tag gets included for each link. Finally, each new
<span> object is appended to the menu-page's "form" object, and thereby
ends up being inserted into the middle of the overall text on the page.
(For finer control of where you want to put text in a page, consider
placing something like this in the web page at an appropriate place,
as preparation:
<div id="InsertHere"></div>
You could then use document.getElementById("InsertHere") to get it into
a variable, for appending of <span> elements, the way a variable named
"form" was used in this example menu page.
Note: You don't have to specify the link in the same way I did
(the type of link specified here only works if JavaScript is enabled).
You are free to use the more-standard "<a>" tag with the "href"
property defined, if you wish. But whichever way you go,
you need to make sure that any pages being linked actually exist!
*/
dat.sort();
for(indx=0; indx<dtno; indx++)
{ write = document.createElement('span');
write.innerHTML = "<a onclick=\"window.open('" + dat[indx][1] +
"', 'Menu');\" style=\"color:#0000ff;" +
"text-decoration:underline;cursor:pointer;\">" +
dat[indx][0] + "</a> " + dat[indx][2] + "<br />";
form.appendChild(write);
}
return;
}
// -->
</script>
</head>
<body onload="initialize();" style="background-color:#a0a0a0; color:#000000;
font-family:sans-serif; font-size:11pt;">
<h2>
MENU
<noscript><br /><span style="color:#ff0000;">
Links here only work if<br />
your browser's JavaScript<br />
support is enabled.</span><br /></noscript></h2>
These are the menu items you currently have available:<br />
<br />
<form id="MENU" action="" onsubmit="return false;">
<!-- Yes, the <form> object starts out completely empty -->
</form>
Click any link, and enjoy it as much as you like.<br />
Then use your browser's BACK button to return to this Menu,<br />
so you can click a different link for a different thing.<br />
<br />
<br />
<small>This file (web page) Copyright (c) 2013-present by me</small>
</body>
</html>
我强烈建议AngularJS的ng-include，不管你的项目是不是AngularJS。
<script src=".../angular.min.js"></script>
<body ng-app="ngApp" ng-controller="ngCtrl">
<div ng-include="'another.html'"></div>
<script>
var app = angular.module('ngApp', []);
app.controller('ngCtrl', function() {});
</script>
</body>
你可以从AngularJS中找到CDN(或下载Zip)，更多信息可以从W3Schools中获取。
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