JSON字符串中的反斜杠 [英] Backslashes in JSON string

问题描述

我不熟悉这种格式:

{"d":"{\"Table\":[{\"pCol\":12345,\"fCol\":\"jeff\",\"lCol\":\"Smith\",\"dId\":1111111,\"tDate\":\"\\/Date(1153033200000-0700)\\/\"}]}"}

我正在使用 Newtonsoft 序列化我要返回的数据集从我的ASP.Net Web服务.上面的JSON字符串是Firebug返回的内容.我已经使用jsLint检查了此JSON，它很好.

I'm using Newtonsoft to serialize my DataSet that I'm returning from my ASP.Net webservice. The above JSON string is what Firebug is returning. I have checked this JSON using jsLint and it is good.

在萤火虫中，我看到了JSON数据和我的第一个alert('success');.但是，当我尝试alert(msg.d.Table);时，我什么也没得到.不是警报框或Firebug中的错误...我认为这与这些反斜杠有关...但我不确定.

In firebug I see the JSON data and my first alert('success'); However when I try to alert(msg.d.Table); I get nothing. Not an alert box or an error in Firebug... I think it has something to do with these backslashes... But I'm not sure.

有什么想法吗?

推荐答案

那些反斜杠是转义字符.它们在与d关联的字符串中转义了双引号.您不能alert msg.d.Table的原因是因为d的值是一个字符串.您必须使用JSON.parse将该JSON字符串解析为JSON对象. 然后，您必须将Table转换回字符串以发出警报. 像这样:

Those backslashes are escape characters. They are escaping the double quotes inside of the string associated with d. The reason you cant alert msg.d.Table is because the value of d is a string. You have to use JSON.parse to parse that JSON string into a JSON object. Then, you have to convert Table back to a string to alert it. Something like this:

var dObj = JSON.parse(msg.d);
alert(JSON.stringify(dObj.Table, null, 2)); 

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