使用 Javascript 解码 UTF-8

本文介绍了使用 Javascript 解码 UTF-8的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在一个 XHTML 网页中有 Javascript，它传递 UTF-8 编码的字符串.它需要继续传递 UTF-8 版本，并对其进行解码.如何解码 UTF-8 字符串以进行显示?

I have Javascript in an XHTML web page that is passing UTF-8 encoded strings. It needs to continue to pass the UTF-8 version, as well as decode it. How is it possible to decode a UTF-8 string for display?

<script type="text/javascript">
// <![CDATA[
function updateUser(usernameSent){
    var usernameReceived = usernameSent; // Current value: GrÃƒÂ¶ÃƒÂŸe
    var usernameDecoded = usernameReceived;  // Decode to: Größe
    var html2id = '';
    html2id += 'Encoded: ' + usernameReceived + '<br />Decoded: ' + usernameDecoded;
    document.getElementById('userId').innerHTML = html2id;
}
// ]]>
</script>

推荐答案

回答最初的问题:这里是你如何在 javascript 中解码 utf-8:

To answer the original question: here is how you decode utf-8 in javascript:

http://ecmanaut.blogspot.ca/2006/07/encoding-decoding-utf8-in-javascript.html

具体来说，

function encode_utf8(s) {
  return unescape(encodeURIComponent(s));
}

function decode_utf8(s) {
  return decodeURIComponent(escape(s));
}

我们已经在我们的生产代码中使用它 6 年了，它运行完美.

We have been using this in our production code for 6 years, and it has worked flawlessly.

但是请注意，escape() 和 unescape() 已被弃用. 看到这个.

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