反序列化 JSON 时出错 无法将 JSON 对象反序列化为类型"System.String"

Question

我有以下JSON:

{"workspace": {
  "name":"Dallas",
   "dataStores":"http://.....:8080/geoserver/rest/workspaces/Dallas/datastores.json",
   "coverageStores":"http://.....:8080/geoserver/rest/workspaces/Dallas/coveragestores.json",
   "wmsStores":"http://....:8080/geoserver/rest/workspaces/Dallas/wmsstores.json"}}

我试着对这个类进行反序列化:

 class objSON {
        public string workspace { get; set; }
        public string name { get; set; }
        public string dataStores { get; set; }
        public string coverageStores { get; set; }
        public string wmsStores { get; set; }}
 objWS_JSON deserContWS = JsonConvert.DeserializeObject<objWS_JSON>(data);
           var coberturas = deserContWS.coverageStores;
           var almacenesDatos = deserContWS.dataStores;
           var almacenesWMS = deserContWS.wmsStores;
           var nombre = deserContWS.name;

我得到以下错误:

无法将JSON对象反序列化为'System.String'类型。

任何想法?由于

Answer 1

您的json与您提供的类结构不正确。json意味着name、dataStores、coverageStores和wmsSTores是工作空间类的子类。我认为你想要的类结构是这样的:

public class workspace
{
    public string name { get; set; }
    public string dataStores { get; set;}
    public string coverageStores { get; set;}
    public string wmsStores {get; set;}
}
public class objSON
{
    public workspace workspace {get; set;}
}

尝试一下，如果数据结构不是你想要的，那么你需要改变你的json。

好的，我刚刚尝试了一个示例应用程序，似乎工作得很好。下面是我使用的代码:

    class Program
    {
            static void Main(string[] args)
            {
               string str = @"{""workspace"": {
                  ""name"":""Dallas"",
                  ""dataStores"":""http://.....:8080/geoserver/rest/workspaces/Dallas/datastores.json"",
                  ""coverageStores"":""http://.....:8080/geoserver/rest/workspaces/Dallas/coveragestores.json      "",
                  ""wmsStores"":""http://....:8080/geoserver/rest/workspaces/Dallas/wmsstores.json""}}";
                 var obj = JsonConvert.DeserializeObject<objSON>(str);
    }
}
public class workspace
{
    public string name { get; set; }
    public string dataStores { get; set; }
    public string coverageStores { get; set; }
    public string wmsStores { get; set; }
}
public class objSON
{
    public workspace workspace { get; set; }
}

Answer 2

在JSON中，workspace 包含所有其他内容，因此您应该有如下内容:

class Container {
    public Workspace workspace { get; set; }
}
class Workspace {
    public string name { get; set; }
    public string dataStores { get; set; }
    public string coverageStores { get; set; }
    public string wmsStores { get; set; }
}

至少匹配JSON的结构-它是否工作是另一回事:)

Answer 3

如果您查看JSON对象(如果您更清楚地布局{和}可能会更好)，您将看到它试图将所有数据序列化到workspace字段，而不是其他属性。我希望你的对象看起来更像:

{
   "workspace": "whatever",
   "name":"Dallas",
   "dataStores":"http://.....:8080/geoserver/rest/workspaces/Dallas/datastores.json",
   "coverageStores":"http://.....:8080/geoserver/rest/workspaces/Madrid/coveragestores.json",
   "wmsStores":"http://....:8080/geoserver/rest/workspaces/Madrid/wmsstores.json"
}