相关疑难解决方法(0)

我从Node服务器返回的json中得到斜杠.这给解析json带来了挑战.

json看起来像

"{\"responseCode\":200,\"headers\":{\"Access-Control-Allow-Origin\":\"*\",\"Content-Type\":\"application/json; charset=utf-8\",\"X-Powered-By\":\"Express\",\"Connection\":\"keep-alive\",\"Date\":\"Thu, 22 Sep 2016 08:12:39 GMT\",\"Content-Length\":\"21\",\"Etag\":\"W/\\"15-HeifZ4bmt+WxpIWDoartGQ\\"\"},\"response\":\"{\\"status\\":\\"UP\\"}\",\"bytesSent\":715779}"

为了摆脱斜杠,我做了一个替换,然后使用JSON.parse将其转换回json

.then(function (result) {
     var status = "";
     var str = JSON.stringify(result); 
     console.log("str result  ", str);
     str = str.replace(/\\/g, "");
     console.log("result after cleanup  ", str);
     var obj = JSON.parse(str);
     status = obj.response.status;
}

替换斜杠后,字符串看起来像这样

"{\"responseCode\":200,\"headers\":{\"Access-Control-Allow-Origin\":\"*\",\"Content-Type\":\"application/json; charset=utf-8\",\"X-Powered-By\":\"Express\",\"Connection\":\"keep-alive\",\"Date\":\"Thu, 22 Sep 2016 08:12:39 GMT\",\"Content-Length\":\"21\",\"Etag\":\"W/\"15-HeifZ4bmt+WxpIWDoartGQ\"\"},\"response\":\"{\"status\":\"UPLOADED\"}\",\"bytesSent\":715779}"

当我尝试将其解析为JSON对象时,它会抛出错误

var obj = JSON.parse(str);

由于仍存在斜杠,JSON似乎仍然无效.

我有以下疑问 -

1. 如何更新我的正则表达式以摆脱这些斜杠
2. 为什么在响应中引入了这些斜杠