这是一个旧帖子。但对于那些使用angular.fromJson和JSON.stringify的人来说，它仍然是有帮助的。 已弃用Escape()。 用这个代替，

var uri_enc = encodeURIComponent(uri); //before you post the contents
var uri_dec = decodeURIComponent(uri_enc); //before you display/use the contents.

ref http://www.w3schools.com/jsref/jsref_decodeuricomponent.asp

在JSON.stringify上还有第二个参数。所以，更优雅的解决方案是:

function escape (key, val) {
    if (typeof(val)!="string") return val;
    return val
      .replace(/[\"]/g, '\\"')
      .replace(/[\\]/g, '\\\\')
      .replace(/[\/]/g, '\\/')
      .replace(/[\b]/g, '\\b')
      .replace(/[\f]/g, '\\f')
      .replace(/[\n]/g, '\\n')
      .replace(/[\r]/g, '\\r')
      .replace(/[\t]/g, '\\t')
    ; 
}

var myJSONString = JSON.stringify(myJSON,escape);

最好使用JSON.parse(yourUnescapedJson);

RegExp单行，使用这个函数:

function escapeJSON(string) {
    return string.replace(/[\n"\&\r\t\b\f]/g, '\\$&');
}

我使用内置的jQuery.serialize()从文本区域提取值以urlencode输入。专业的部分是，你不需要搜索替换每一个特殊的字符在你自己和我也保持换行符和转义html。为了序列化工作，似乎输入字段需要有一个name属性，但它也添加了相同的属性转义字符串，需要被替换掉。也许不是你想要的，但对我有用。

var myinputfield = jQuery("#myinputfield"); 
var text = myinputfield.serialize();
text = text.replace(myinputfield.attr('name') + '=','');

EDIT: Check if the api you’re interacting with is set to Content-Type: application/json, &/or if your client http library is both stringify-ing and parsing the http request body behind the scenes. My client library was generated by swagger, and was the reason I needed to apply these hacks, as the client library was stringifying my pre-stringified body (body: “jsonString”, instead of body: { ...normal payload }). All I had to do was change the api to Content-Type: text/plain, which removed the JSON stringify/parsing on that route, and then none of these hacks were needed. You can also change only the "consumes" or "produces" portion of the api, see here.

原文:如果你的谷歌一直登陆你这里，你的api抛出错误，除非你的JSON双引号转义("{\"foo\": true}")，所有你需要做的是stringify两次，例如JSON.stringify(JSON.stringify(bar)))