The url in json contains backslashes

问题

I was just wondering why my wcf rest returns json which contains backslahses in the url. it is as below:

https:\/\/s3.amazonaws.com\/reiaustralia\/1fc00dfab25044ecb31e4882121b535e\/jpg\/download.jpg?AWSAccessKeyId=AKIAISTDESL6TBRAVM4Q&Expires=1380692091&Signature=MduuaUAjQRisadtM%2FDuVDemexLY%3D

Thanks

回答1:

Forward slashes can be escaped with a backslash in JSON, but they don't have to be. So either one of the following:

{"url":"http://www.example.com/"}
or
{"url":"http\/\/www.example.com\/"}

Will parse into an object which has a url property whose string value is http://www.example.com/.

Some technologies will escape out the slashes when generating JSON, and some won't. PHP, for example, has an option called JSON_UNESCAPED_SLASHES which lets you control whether or not to escape your slashes.

You can get see the various escape characters from the json.org home page in the "string" section.

回答2:

Because // (double slash) in javascript means comment and /{string}/ (string inside slash) is mean regula expression.

So. To keep correct value in json it have to put \ (back slash) in front of / (slash).

回答3:

They are just escape characters, and when u consume the string in your application it would just be fine

来源：https://stackoverflow.com/questions/19130605/the-url-in-json-contains-backslashes