使用RegEx转换JSON键值

Question

我从服务器调用中收到一个JSON字符串，格式如下：

{"0":{"jpgN":"2","spread_value":"392.22","relevant_new":"text"},"1":{"jpgN":"1","spread_value":"395.28","relevant_new":"text"},"count":2}

使用RegExp，有没有办法用字符串"http://mydomain.com/keyValue.jpg"替换任何关键jpgN的值（例如"http://mydomain.com/2.jpg"）？

Answer 1

将"jpgN":"([^"]+)"替换为"jpgN":"http://mydomain.com/$1.jpg"。

但最好使用编程语言解析json并更改值。

Answer 2

那样的东西？

var json = {"0":{"jpgN":"2","spread_value":"392.22","relevant_new":"text"},"1":{"jpgN":"1","spread_value":"395.28","relevant_new":"text"},"count":2};
var s = JSON.stringify(json);

s.replace(/\"jpgN\":\"(\w+)\"/g, "\"jpgN\":\"http://mydomain.com/$1.jpg\"");