如果你想这样做，并控制从基本页面或内容被服务的服务器，你可以使用跨源资源共享(http://www.w3.org/TR/access-control/)允许客户端JavaScript通过XMLHttpRequest()将数据加载到<div>:

// I safely ignore IE 6 and 5 (!) users
// because I do not wish to proliferate
// broken software that will hurt other
// users of the internet, which is what
// you're doing when you write anything
// for old version of IE (5/6)
xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
  if(xhr.readyState == 4 && xhr.status == 200) {
    document.getElementById('displayDiv').innerHTML = xhr.responseText;
  }
};
xhr.open('GET', 'http://api.google.com/thing?request=data', true);
xhr.send();

现在，对于整个操作的关键，您需要为服务器编写代码，为客户端提供access - control - allow - origin标头，指定您希望客户端代码能够通过XMLHttpRequest()访问哪些域。下面是一个PHP代码的例子，你可以在你的页面顶部包含，以便将这些头发送给客户端:

<?php
  header('Access-Control-Allow-Origin: http://api.google.com');
  header('Access-Control-Allow-Origin: http://some.example.com');
?>

基本上有4种方法将HTML嵌入到网页中:

<iframe> An iframe's content lives entirely in a separate context than your page. While that's mostly a great feature and it's the most compatible among browser versions, it creates additional challenges (shrink wrapping the size of the frame to its content is tough, insanely frustrating to script into/out of, nearly impossible to style). AJAX. As the solutions shown here prove, you can use the XMLHttpRequest object to retrieve data and inject it to your page. It is not ideal because it depends on scripting techniques, thus making the execution slower and more complex, among other drawbacks. Hacks. Few mentioned in this question and not very reliable. HTML5 Web Components. HTML Imports, part of the Web Components, allows to bundle HTML documents in other HTML documents. That includes HTML, CSS, JavaScript or anything else an .html file can contain. This makes it a great solution with many interesting use cases: split an app into bundled components that you can distribute as building blocks, better manage dependencies to avoid redundancy, code organization, etc. Here is a trivial example:

<！—其他来源的资源必须启用cors。--> <link rel="import" href="http://example.com/elements.html">

本地兼容性仍然是一个问题，但您可以使用polyfill使其在当前的常绿浏览器中工作。

你可以在这里和这里了解更多。

An iframe is still the best way to download cross-domain visual content. With AJAX you can certainly download the HTML from a web page and stick it in a div (as others have mentioned) however the bigger problem is security. With iframes you'll be able to load the cross domain content but won't be able to manipulate it since the content doesn't actually belong to you. On the other hand with AJAX you can certainly manipulate any content you are able to download but the other domain's server needs to be setup in such a way that will allow you to download it to begin with. A lot of times you won't have access to the other domain's configuration and even if you do, unless you do that kind of configuration all the time, it can be a headache. In which case the iframe can be the MUCH easier alternative.

正如其他人提到的，你也可以使用embed标签和object标签，但这并不一定比iframe更高级或更新。

HTML5更倾向于采用web api从跨域获取信息。通常web api只返回数据而不是HTML。

这似乎也可以工作，尽管W3C指定它不是“用于外部(通常是非html)应用程序或交互式内容”。

<embed src="http://www.somesite.com" width=200 height=200 />

更多信息: http://www.w3.org/wiki/HTML/Elements/embed http://www.w3schools.com/tags/tag_embed.asp

你应该看看JSON-P -当我有这个问题时，这是一个完美的解决方案:

https://en.wikipedia.org/wiki/JSONP

您基本上定义了一个javascript文件来加载所有数据，另一个javascript文件处理并显示数据。这样就摆脱了iframes丑陋的滚动条。

如果你想这样做，并控制从基本页面或内容被服务的服务器，你可以使用跨源资源共享(http://www.w3.org/TR/access-control/)允许客户端JavaScript通过XMLHttpRequest()将数据加载到<div>:

// I safely ignore IE 6 and 5 (!) users
// because I do not wish to proliferate
// broken software that will hurt other
// users of the internet, which is what
// you're doing when you write anything
// for old version of IE (5/6)
xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
  if(xhr.readyState == 4 && xhr.status == 200) {
    document.getElementById('displayDiv').innerHTML = xhr.responseText;
  }
};
xhr.open('GET', 'http://api.google.com/thing?request=data', true);
xhr.send();

现在，对于整个操作的关键，您需要为服务器编写代码，为客户端提供access - control - allow - origin标头，指定您希望客户端代码能够通过XMLHttpRequest()访问哪些域。下面是一个PHP代码的例子，你可以在你的页面顶部包含，以便将这些头发送给客户端:

<?php
  header('Access-Control-Allow-Origin: http://api.google.com');
  header('Access-Control-Allow-Origin: http://some.example.com');
?>