使用JSON.parse错误服务器=>客户端node.js进行解析

Question

I send a request from the client to the server, and I got this response:

{
    "m": "",
    "d": {
        "e": [
            {
                "k": "login",
                "m": "__10_10"
            }
        ]
    },
    "s": false,
    "t": "v"
}

But when I try to do JSON.parse on this response from client side I got:

Uncaught Message._fromJSONString: JSON.parse error:undefined 

Code:

    try{
        console.log(json);
        return Message._fromJSONObject(JSON.parse(json));
    }catch(e){
        throw "Message._fromJSONString: JSON.parse error:" + e.message;
    }

I check my JSON from http://jsonlint.com/ and it's ok... I really don't understand this issue, it's a special class who send this response, a Validator. From other requests I don't have this problem...

Do you have any idea about what's goig on? Thanks.

Answer 1

I have found a solution to your problem. It seems that for some reason it was taking it as normal JavaScript Object instead of JSON. This code works fine now.

var json ={
    "m": "",
    "d": {
        "e": [
            {
                "k": "login",
                "m": "__10_10"
            }
        ]
    },
    "s": "false",
    "t": "v"
};

 json =JSON.stringify(json); // this converts it into JSON parsable
console.log(JSON.parse(json));

JSfiddle => http://jsfiddle.net/j39tP/

Answer 2

I experienced an error similar to this this morning. I had to do two things to fix it:

1. For whatever reason, the error log was saying that I needed to put the json data in an array format, like this JSON.parse([jsondata]);

2. On top of my, my server side output had an error as well - so I guess double check that to make sure it's returning the correct result?

Not sure if this applies to your situation.

Hope this helps