JsonConvert.DeserializeXmlNode 异常 - 名称中不能有冒号（:)答案

【问题标题】：JsonConvert.DeserializeXmlNode exception - cannot have colon(:) in nameJsonConvert.DeserializeXmlNode 异常 - 名称中不能有冒号（:)
【发布时间】：2014-01-29 10:36:11
【问题描述】：

我需要使用 NewtonSoft Json.Net 将 JSON 转换为 XML。 JSON 文件在某些对象键中包含带有冒号的数据。运行下面的代码时，会抛出异常。

XmlDocument xdoc = JsonConvert.DeserializeXmlNode(json, "root");

例外：The ':' character, hexadecimal value 0x3A, cannot be included in a name.

以下是 JSON 字符串中的一些键值对示例：

'jcr:type' : 'nt:file';
'jcr:content' ['jcr:uuid' : jfkjsaf]

这些只是从 JSON 字符串中随机挑选出来的；键和值都有带冒号的前缀。

如何让 Json.Net 忽略此异常并将 JSON 转换为 XML？

好的，这是我的json文件

{
    "jcr:createdBy": "admin",
    "jcr:created": "Mon Dec 30 2013 23:31:17 GMT-0800",
    "jcr:primaryType": "sling:OrderedFolder",
    "CustomerImage0": {
        "id": 0,
        "firstName": "Customer",
        "state": "Andhra Pradesh",
        "phone": "988-777-5550",
        "status": "Active",
        "lastName": "Image",
        "country": "India",
        "jcr:primaryType": "nt:unstructured"
    },
    "CustomerImage1": {
        "id": 1,
        "firstName": "Customer",
        "state": "Andhra Pradesh",
        "phone": "988-777-5551",
        "status": "Active",
        "lastName": "Image",
        "country": "India",
        "jcr:primaryType": "nt:unstructured"
    },
    "CustomerImage2": {
        "id": 2,
        "firstName": "Customer",
        "state": "Andhra Pradesh",
        "phone": "988-777-5552",
        "status": "Active",
        "lastName": "Image",
        "country": "India",
        "jcr:primaryType": "nt:unstructured"
    },
    "CustomerImage3": {
        "id": 3,
        "firstName": "Customer",
        "state": "Andhra Pradesh",
        "phone": "988-777-5553",
        "status": "Active",
        "lastName": "Image",
        "country": "India",
        "jcr:primaryType": "nt:unstructured"
    },
    "CustomerImage4": {
        "id": 4,
        "firstName": "Customer",
        "state": "Andhra Pradesh",
        "phone": "988-777-5554",
        "status": "Active",
        "lastName": "Image",
        "country": "India",
        "jcr:primaryType": "nt:unstructured"
    },
    "Nokia_7610_white.gif": {
        "jcr:uuid": "65ce7b11-c5f1-4017-b27c-c455b1a710a1",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Fri Jan 03 2014 04:58:12 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 11886,
            "phone": "888-123-0121",
            "status": "Active",
            "jcr:mimeType": "image/gif",
            "designation": "APL",
            "lastName": "Image1",
            "jcr:lastModified": "Fri Jan 03 2014 04:57:59 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "Nokia_9300_close.gif": {
        "jcr:uuid": "619ee9eb-d73a-4a65-b7e7-8bd5c2061412",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Fri Jan 03 2014 04:59:22 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 11797,
            "phone": "888-123-0122",
            "status": "Active",
            "jcr:mimeType": "image/gif",
            "designation": "APL",
            "lastName": "Image2",
            "jcr:lastModified": "Fri Jan 03 2014 04:59:09 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "Nokia_9500_close.gif": {
        "jcr:uuid": "12a67241-aa11-4199-9b98-657406d777d6",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Fri Jan 03 2014 05:00:13 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 9873,
            "phone": "888-123-0123",
            "status": "Active",
            "jcr:mimeType": "image/gif",
            "designation": "APL",
            "lastName": "Image3",
            "jcr:lastModified": "Fri Jan 03 2014 05:00:00 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "Nokia_N90.gif": {
        "jcr:uuid": "5a01d557-1430-4d5b-a9f8-5f836f2812a7",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Fri Jan 03 2014 05:00:57 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 8841,
            "phone": "888-123-0124",
            "status": "Active",
            "jcr:mimeType": "image/gif",
            "designation": "APL",
            "lastName": "Image4",
            "jcr:lastModified": "Fri Jan 03 2014 05:00:44 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "PreviewGif.gif": {
        "jcr:uuid": "625112c6-dede-4333-8e78-fcdf474a190f",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Thu Jan 09 2014 05:19:39 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 26994,
            "phone": "888-123-0125",
            "status": "Active",
            "designation": "APL",
            "jcr:mimeType": "image/gif",
            "lastName": "Image5",
            "jcr:lastModified": "Thu Jan 09 2014 05:19:27 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "online.png": {
        "jcr:uuid": "194f27d0-a549-493f-9c67-ac8f1ea436a5",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Thu Jan 09 2014 05:23:09 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 1857,
            "phone": "888-123-0126",
            "status": "Active",
            "designation": "APL",
            "jcr:mimeType": "image/png",
            "lastName": "Image6",
            "jcr:lastModified": "Thu Jan 09 2014 05:22:58 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    },
    "Hot_Sale_Nike.pdf": {
        "jcr:uuid": "52084540-b409-45cd-909b-9702742428b1",
        "jcr:createdBy": "admin",
        "jcr:mixinTypes": [
            "mix:referenceable"
        ],
        "jcr:created": "Fri Jan 10 2014 01:30:48 GMT-0800",
        "jcr:primaryType": "nt:file",
        "jcr:content": {
            "firstName": "Vendor",
            "companyName": "E Z Systems",
            ":jcr:data": 54909,
            "phone": "888-123-0222",
            "status": "Active",
            "designation": "APL",
            "jcr:mimeType": "application/pdf",
            "lastName": "Pdf2",
            "jcr:lastModified": "Fri Jan 10 2014 01:30:32 GMT-0800",
            "jcr:primaryType": "nt:unstructured",
            "city": "Hyderabad"
        }
    }
}

【问题讨论】：

标签： c# asp.net xml json json.net

【解决方案1】：

您确定您的 JSON 格式正确吗？在将您提供的示例修复为格式正确的 JSON 后，我使用最新版本的 JSON.Net 尝试了以下代码。我没有看到将其转换为 XML 的任何异常。 Json.Net 似乎通过在转换过程中从键中删除前缀来处理冒号。

class Program
{
    static void Main(string[] args)
    {
        string json = @"
        {
            ""jcr:type"" : ""nt:file"",
            ""jcr:content"" : [""jcr:uuid"", ""jfkjsaf""]
        }";

        XmlDocument xdoc = JsonConvert.DeserializeXmlNode(json, "root");

        StringBuilder sb = new StringBuilder();
        using (StringWriter sw = new StringWriter(sb))
        using (XmlTextWriter writer = new XmlTextWriter(sw))
        {
            writer.Formatting = System.Xml.Formatting.Indented;
            xdoc.WriteTo(writer);
        }

        Console.WriteLine(sb.ToString());
    }
}

输出：

<root>
  <type>nt:file</type>
  <content>jcr:uuid</content>
  <content>jfkjsaf</content>
</root>

检查事项：

您的 JSON 有效吗？您可以使用jsonlint.com 进行检查。
您运行的是最新版本的 Json.Net 吗？您可以从 here 或在 Visual Studio 中使用 NuGet 获取最新信息。
在调用JsonConvert.DeserializeXmlNode 之前，您是否以任何方式操作JSON 字符串？如果是这样，你到底在做什么？我们需要详细信息。

如果这些不是问题，请编辑您的问题，以提供您遇到问题的完整 JSON，而不仅仅是零碎。

更新

现在您已经发布了完整的 JSON，我可以看到问题所在。您的 JSON 中有多个包含多个冒号的键。这是产生异常的最简单示例：

string json = @"{ "":jcr:data"": 54909 }";
XmlDocument xdoc = JsonConvert.DeserializeXmlNode(json, "root");

看起来有问题的键都是同一个——:jcr:data。如果您可以控制 JSON 的来源，那么最好的解决方案是修复来源，使其在这些键的开头没有多余的冒号。

如果 JSON 来自您无法控制的第三方 Web 服务，一个简单的解决方法是在尝试将 JSON 转换为 XML 之前对 JSON 进行字符串替换。你可以这样做：

json = json.Replace(":jcr:data", "jcr:data");

我用你的完整 JSON 试了一下，效果很好。

【讨论】：

感谢您的回复，我验证了我的 json 文件，它是有效的，我收到的错误是：':' 字符，十六进制值 0x3A，不能包含在名称中。
部分 json 数据 "online.png": { "jcr:uuid": "194f27d0-a549-493f-9c67-ac8f1ea436a5","jcr:createdBy": "admin", "jcr: mixinTypes": ["mix:referenceable"],"jcr:created":"2014 年 1 月 9 日星期四 05:23:09 GMT-0800","jcr:primaryType":"nt:file","jcr:content": {"firstName": "Vendor","companyName": "EZ Systems", ":jcr:data": 1857,"phone": "888-123-0126","status": "Active","designation" ：“APL”，“jcr:mimeType”：“image/png”，“lastName”：“Image6”，“jcr:lastModified”：“2014 年 1 月 9 日星期四 05:22:58 GMT-0800”，“jcr:primaryType ": "nt:unstructured","city": "海得拉巴" }},
是否可以使用 linq 查询 jobject，并在任何深度搜索键值和数组名称？如果是，请帮助我编写查询，这样我就不必担心从 json 转换 xml 以及稍后在转换后的 xml 上使用 xpath 来执行搜索操作。
json 文件没有根元素，它以多个属性开头，并收集了有关图像的元数据，我发布了一个示例图像元数据
deserializedValue = CreateValueInternal(reader, objectType, contract, null, null, null, null) 处抛出异常；在 JsonSerializerInternalReader.cs 文件中