打开C＃对象JSON字符串，如何处理双引号 [英] Turn C# object to json string, how to handle double quotation

问题描述

我使用Newtonsoft.Json解析对象JSON字符串。它somethink返回是这样的：

I'm using Newtonsoft.Json to parse object to json string. It returns somethink like this:

{\"code\":-1,\"idName\":\"empty\",\"idValue\":0,\"message\":\"Failed,can not read object from body\"}

这不是有效的JSON字符串，我认为，任何人都可以工作，我出去？

it is not a valid json string i think, anyone can work me out?

我要的是这样的：

{"code":-1,"idName":"empty\",\"idValue\":0,\"message\":\"Failed,can not read object from body\"}  

public static class CommonUtility
{
    // format response string
    public static string FormatResponseString(int code, string idName, long idValue, string message)
    {
        ResponseString rs = new ResponseString();
        rs.code = code;
        rs.idName = idName;
        rs.idValue = idValue;
        rs.message = message;

        string json = JsonConvert.SerializeObject(rs);
        return json;
    }
}

public class ResponseString
{
    public int code;
    public string idName;
    public long idValue;
    public string message;
}

编辑：这是从响应Fidder酒店TextView的，我可以看到实际的JSON：

this is actual json from the response fidder TextView I can see:

"{\"code\":-1,\"idName\":\"empty\",\"idValue\":0,\"message\":\"Failed,can not read object from body\"}"

情景是这样的：
我把网页API CreateResponse方法序列化的JSON字符串。我可以看到Fidder酒店的响应串像我这是不是有效的JSON

the scenario is this: I put the serialized json string in web api CreateResponse method. I can see the response string in fidder like I said in the question which is not valid json

Request.CreateResponse(HttpStatusCode.Created, returnString);

returnString 是序列化的JSON字符串 ResponseString 对象

returnString is json string from the serialized ResponseString object

我DONOT认为这是一个有效的字符串，我错了？

I donot think it is a valid string , am I wrong?

推荐答案

最后，解决这个问题。与你们分享

finally, fix this. share with you guys.

根本原因：结果
我的猜测是，它是双系列化问题。
似乎的ASP.NET Web API 2框架会自动为我们做了连载。这就是为什么我 SerializeObject 然后 Debug.Write（JSON）字符串，它工作得很好。

Root Cause:
My guess is that it is the double serialization issue. It seems ASP.NET web api 2 framework will do the serialize automatically for us. and that is why I SerializeObject and then Debug.Write(json) the string, it works well.

string json = JsonConvert.SerializeObject(rs);     
Debug.Write(json);

但小提琴手后调用web API，网页APIreturned响应无效的JSON（\），因为我上面说，这件事发生在其他客户端例如iOS，Android设备一样。

but after fiddler invoke the web API, web APIreturned response with invalid json(\") as i said above. this happened the same on other clients such as ios, android devices.

因为Web API做的系列化我，我做一个额外的显式序列也 JSON字符串= JsonConvert.SerializeObject（RS）; 这意味着我运行的是不是需要另一个parseJson

because the web api do the serialization for me, and i do an extra explicit serialization also string json = JsonConvert.SerializeObject(rs); that means i run another parseJson which is not needed.

每我的问题在这里，我只是直接就把这不是在 CreateResponse 方法序列化对象 Request.CreateResponse（HttpStatusCode.Created，RS）; 键，它返回Fidder酒店和其他客户端有效的JSON

per my question here, i just directly put the object which is not serialized in the CreateResponse method. Request.CreateResponse(HttpStatusCode.Created, rs); And it returns valid json for the fidder and other clients.

我要如何解决这个问题：
Request.CreateResponse（HttpStatusCode.Created，RS）;

How do i fix this problem: Request.CreateResponse(HttpStatusCode.Created, rs);

public static class CommonUtility
    {
        // format response string
        public static ResponseString FormatResponseString(int code, string idName, long idValue, string message)
        {
            ResponseString rs = new ResponseString();
            rs.code = code;
            rs.idName = idName;
            rs.idValue = idValue;
            rs.message = message;

            return rs ;
        }
    }

    public class ResponseString
    {
        public int code;
        public string idName;
        public long idValue;
        public string message;
    }

和控制器

ResponseString rs = new ResponseString();
                        rs = CommonUtility.FormatResponseString(0, "pacelId", returnPacelId, "Succeed,created items in db success");
                        return Request.CreateResponse(HttpStatusCode.Created, rs);

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