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

最好使用JSON.parse(yourUnescapedJson);

如果您的服务器端脚本是PHP，请使用json_encode()， Json_encode()转义换行符和其他意想不到的标记 (如果不使用PHP，请为您的脚本语言寻找类似的函数)

然后在JavaScript中使用$.parseJSON()，完成!

在使用任何形式的Ajax时，Web上似乎缺乏关于从CGI服务器接收到的响应格式的详细文档。这里的一些条目指出，必须转义返回文本或json数据中的换行符，以防止json转换中的无限循环(挂起)(可能是通过抛出未捕获的异常创建的)，无论是由jQuery自动完成还是使用Javascript系统或库json解析调用手动完成。

In each case where programmers post this problem, inadequate solutions are presented (most often replacing \n by \\n on the sending side) and the matter is dropped. Their inadequacy is revealed when passing string values that accidentally embed control escape sequences, such as Windows pathnames. An example is "C:\Chris\Roberts.php", which contains the control characters ^c and ^r, which can cause JSON conversion of the string {"file":"C:\Chris\Roberts.php"} to loop forever. One way of generating such values is deliberately to attempt to pass PHP warning and error messages from server to client, a reasonable idea.

根据定义，Ajax在幕后使用HTTP连接。这样的连接使用GET和POST传递数据，这两者都需要对发送的数据进行编码，以避免错误的语法，包括控制字符。

这给了构造解决方案的足够提示(它需要更多的测试):在PHP(发送)端使用rawurlencode来编码数据，在Javascript(接收)端使用unescape来解码数据。在某些情况下，您将把它们应用于整个文本字符串，在其他情况下，您将只应用于JSON中的值。

如果这个想法被证明是正确的，那么可以构造一些简单的例子来帮助各个级别的程序员一劳永逸地解决这个问题。

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)))

根据user667073的建议，除了先重新排序反斜杠替换，并修复引号替换

escape = function (str) {
  return str
    .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');
};