在C＃中解析JSON

Question

I'm trying to parse some JSON data from the Google AJAX Search API. 我正在尝试从Google AJAX搜索API解析一些JSON数据。 I have this URL and I'd like to break it down so that the results are displayed. 我有这个网址，我想将其分解，以便显示结果。 I've currently written this code, but I'm pretty lost in regards of what to do next, although there are a number of examples out there with simplified JSON strings. 我目前已经编写了这段代码，但是尽管接下来有很多使用简化的JSON字符串的示例，但是我对于下一步的工作还是很迷茫。

Being new to C# and .NET in general I've struggled to get a genuine text output for my ASP.NET page so I've been recommended to give JSON.NET a try. 一般来说，对于C＃和.NET还是陌生的，我一直在努力为ASP.NET页面获取真正的文本输出，因此建议尝试一下JSON.NET。 Could anyone point me in the right direction to just simply writing some code that'll take in JSON from the Google AJAX Search API and print it out to the screen? 有人能指出正确的方向，只是简单地编写一些代码，这些代码将从Google AJAX搜索API中以JSON格式输出并显示在屏幕上吗？

EDIT: ALL FIXED! 编辑：全部修复！ All results are working fine. 所有结果都很好。 Thank you again Dreas Grech! 再次感谢Dreas Grech！

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.ServiceModel.Web;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        GoogleSearchResults g1 = new GoogleSearchResults();
        const string json = @"{""responseData"": {""results"":[{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.cheese.com/"",""url"":""http://www.cheese.com/"",""visibleUrl"":""www.cheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:bkg1gwNt8u4J:www.cheese.com"",""title"":""\u003cb\u003eCHEESE\u003c/b\u003e.COM - All about \u003cb\u003echeese\u003c/b\u003e!."",""titleNoFormatting"":""CHEESE.COM - All about cheese!."",""content"":""\u003cb\u003eCheese\u003c/b\u003e - everything you want to know about it. Search \u003cb\u003echeese\u003c/b\u003e by name, by types   of milk, by textures and by countries.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://en.wikipedia.org/wiki/Cheese"",""url"":""http://en.wikipedia.org/wiki/Cheese"",""visibleUrl"":""en.wikipedia.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:n9icdgMlCXIJ:en.wikipedia.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e - Wikipedia, the free encyclopedia"",""titleNoFormatting"":""Cheese - Wikipedia, the free encyclopedia"",""content"":""\u003cb\u003eCheese\u003c/b\u003e is a food consisting of proteins and fat from milk, usually the milk of   cows, buffalo, goats, or sheep. It is produced by coagulation of the milk \u003cb\u003e...\u003c/b\u003e""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.ilovecheese.com/"",""url"":""http://www.ilovecheese.com/"",""visibleUrl"":""www.ilovecheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:GBhRR8ytMhQJ:www.ilovecheese.com"",""title"":""I Love \u003cb\u003eCheese\u003c/b\u003e!, Homepage"",""titleNoFormatting"":""I Love Cheese!, Homepage"",""content"":""The American Dairy Association\u0026#39;s official site includes recipes and information   on nutrition and storage of \u003cb\u003echeese\u003c/b\u003e.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.gnome.org/projects/cheese/"",""url"":""http://www.gnome.org/projects/cheese/"",""visibleUrl"":""www.gnome.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:jvfWnVcSFeQJ:www.gnome.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e"",""titleNoFormatting"":""Cheese"",""content"":""\u003cb\u003eCheese\u003c/b\u003e uses your webcam to take photos and videos, applies fancy special effects   and lets you share the fun with others. It was written as part of Google\u0026#39;s \u003cb\u003e...\u003c/b\u003e""}],""cursor"":{""pages"":[{""start"":""0"",""label"":1},{""start"":""4"",""label"":2},{""start"":""8"",""label"":3},{""start"":""12"",""label"":4},{""start"":""16"",""label"":5},{""start"":""20"",""label"":6},{""start"":""24"",""label"":7},{""start"":""28"",""label"":8}],""estimatedResultCount"":""14400000"",""currentPageIndex"":0,""moreResultsUrl"":""http://www.google.com/search?oe\u003dutf8\u0026ie\u003dutf8\u0026source\u003duds\u0026start\u003d0\u0026hl\u003den-GB\u0026q\u003dcheese""}}, ""responseDetails"": null, ""responseStatus"": 200}";
        g1 = JSONHelper.Deserialise<GoogleSearchResults>(json);
        Response.Write(g1.content);
    }
}

public class JSONHelper
{
    public static T Deserialise<T>(string json)
    {
        T obj = Activator.CreateInstance<T>();
        MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
        DataContractJsonSerializer serialiser = new DataContractJsonSerializer(obj.GetType());
        ms.Close();
        return obj;
    }
}
/// Deserialise from JSON
[Serializable]
public class GoogleSearchResults
{
    public GoogleSearchResults() { }
    public GoogleSearchResults(string _unescapedUrl, string _url, string _visibleUrl, string _cacheUrl, string _title, string _titleNoFormatting, string _content)
    {
        this.unescapedUrl = _unescapedUrl;
        this.url = _url;
        this.visibleUrl = _visibleUrl;
        this.cacheUrl = _cacheUrl;
        this.title = _title;
        this.titleNoFormatting = _titleNoFormatting;
        this.content = _content;
    }

    string _unescapedUrl;
    string _url;
    string _visibleUrl;
    string _cacheUrl;
    string _title;
    string _titleNoFormatting;
    string _content;

    [DataMember]
    public string unescapedUrl
    {
        get { return _unescapedUrl; }
        set { _unescapedUrl = value; }
    }

    [DataMember]
    public string url
    {
        get { return _url; }
        set { _url = value; }
    }

    [DataMember]
    public string visibleUrl
    {
        get { return _visibleUrl; }
        set { _visibleUrl = value; }
    }
    [DataMember]
    public string cacheUrl
    {
        get { return _cacheUrl; }
        set { _cacheUrl = value; }
    }

    [DataMember]
    public string title
    {
        get { return _title; }
        set { _title = value; }
    }

    [DataMember]
    public string titleNoFormatting
    {
        get { return _titleNoFormatting; }
        set { _titleNoFormatting = value; }
    }

    [DataMember]
    public string content
    {
        get { return _content; }
        set { _content = value; }
    }
}

The code currently compiles and runs perfectly, but isn't returning any results. 该代码当前可以编译并完美运行，但不会返回任何结果。 Could someone help me with returning what I require, the results ready to print out to the screen? 有人可以帮助我返回我需要的结果，以便将结果打印到屏幕上吗？

Edit: 编辑：

Json.NET works using the same JSON and classes as the example above. Json.NET使用与上面的示例相同的JSON和类。

GoogleSearchResults g1 = JsonConvert.DeserializeObject<GoogleSearchResults>(json);

Link: Serializing and Deserializing JSON with Json.NET 链接：使用Json.NET序列化和反序列化JSON

Related 有关

C# - parsing json formatted data into nested hashtables C＃-将json格式的数据解析为嵌套的哈希表
Parse JSON array 解析JSON数组

Answer 1

[Update] [更新]
I've just realized why you weren't receiving results back... you have a missing line in your Deserialize method. 我刚刚意识到了为什么您没有收到结果...您的Deserialize方法中缺少一行。 You were forgetting to assign the results to your obj : 您忘记了将结果分配给obj ：

public static T Deserialize<T>(string json)
{
    using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
    {
        DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
        return (T)serializer.ReadObject(ms);
    } 
}

Also, just for reference, here is the Serialize method : 另外，仅供参考，这是Serialize方法：

public static string Serialize<T>(T obj)
{
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
    using (MemoryStream ms = new MemoryStream())
    {
        serializer.WriteObject(ms, obj);
        return Encoding.Default.GetString(ms.ToArray());
    }
}

Edit 编辑

If you want to use Json.NET here are the equivalent Serialize/Deserialize methods to the code above.. 如果要使用Json.NET，则这里是与上面的代码等效的Serialize / Deserialize方法。

Deserialize: 反序列化：

JsonConvert.DeserializeObject<T>(string json);

Serialize: 连载：

JsonConvert.SerializeObject(object o);

This are already part of Json.NET so you can just call them on the JsonConvert class. 这已经是Json.NET的一部分，因此您可以在JsonConvert类上调用它们。

Link: Serializing and Deserializing JSON with Json.NET 链接：使用Json.NET序列化和反序列化JSON

Now, the reason you're getting a StackOverflow is because of your Properties . 现在，获得StackOverflow的原因是由于您的Properties 。

Take for example this one : 以这个为例：

[DataMember]
public string unescapedUrl
{
    get { return unescapedUrl; } // <= this line is causing a Stack Overflow
    set { this.unescapedUrl = value; }
}

Notice that in the getter , you are returning the actual property (ie the property's getter is calling itself over and over again), and thus you are creating an infinite recursion. 注意，在getter ，您将返回实际的属性（即，属性的getter反复调用自身），因此您将创建无限递归。

Properties (in 2.0) should be defined like such : 属性（在2.0中）应定义如下：

string _unescapedUrl; // <= private field

[DataMember]
public string unescapedUrl
{
    get { return _unescapedUrl; } 
    set { _unescapedUrl = value; }
}

You have a private field and then you return the value of that field in the getter, and set the value of that field in the setter. 您有一个私有字段，然后在getter中返回该字段的值，然后在setter中设置该字段的值。

Btw, if you're using the 3.5 Framework, you can just do this and avoid the backing fields, and let the compiler take care of that : 顺便说一句，如果您使用的是3.5 Framework，则可以这样做并避免使用后备字段，而让编译器来处理：

public string unescapedUrl { get; set;}

Answer 2

Your data class doesn't match the JSON object. 您的数据类与JSON对象不匹配。 Use this instead: 使用此代替：

[DataContract]
public class GoogleSearchResults
{
    [DataMember]
    public ResponseData responseData { get; set; }
}

[DataContract]
public class ResponseData
{
    [DataMember]
    public IEnumerable<Results> results { get; set; }
}

[DataContract]
public class Results
{
    [DataMember]
    public string unescapedUrl { get; set; }

    [DataMember]
    public string url { get; set; }

    [DataMember]
    public string visibleUrl { get; set; }

    [DataMember]
    public string cacheUrl { get; set; }

    [DataMember]
    public string title { get; set; }

    [DataMember]
    public string titleNoFormatting { get; set; }

    [DataMember]
    public string content { get; set; }
}

Also, you don't have to instantiate the class to get its type for deserialization: 同样，您不必实例化该类来获得反序列化的类型：

public static T Deserialise<T>(string json)
{
    using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
    {
        var serialiser = new DataContractJsonSerializer(typeof(T));
        return (T)serialiser.ReadObject(ms);
    }
}

Answer 3

I found this approach which parse JSON into a dynamic object , it extends a DynamicObject and JavascriptConverter to turn the string into an object. 我发现这种将JSON解析为动态对象的方法，它扩展了DynamicObject和JavascriptConverter来将字符串转换为对象。

DynamicJsonObject 动态JsonObject

public class DynamicJsonObject : DynamicObject
{
    private IDictionary<string, object> Dictionary { get; set; }

    public DynamicJsonObject(IDictionary<string, object> dictionary)
    {
        this.Dictionary = dictionary;
    }

    public override bool TryGetMember(GetMemberBinder binder, out object result)
    {
        result = this.Dictionary[binder.Name];

        if (result is IDictionary<string, object>)
        {
            result = new DynamicJsonObject(result as IDictionary<string, object>);
        }
        else if (result is ArrayList && (result as ArrayList) is IDictionary<string, object>)
        {
            result = new List<DynamicJsonObject>((result as ArrayList).ToArray().Select(x => new DynamicJsonObject(x as IDictionary<string, object>)));
        }
        else if (result is ArrayList)
        {
            result = new List<object>((result as ArrayList).ToArray());
        }

        return this.Dictionary.ContainsKey(binder.Name);
    }
}

Converter 转换器

public class DynamicJsonConverter : JavaScriptConverter
{
    public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)
    {
        if (dictionary == null)
            throw new ArgumentNullException("dictionary");

        if (type == typeof(object))
        {
            return new DynamicJsonObject(dictionary);
        }

        return null;
    }

    public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
    {
        throw new NotImplementedException();
    }

    public override IEnumerable<Type> SupportedTypes
    {
        get { return new ReadOnlyCollection<Type>(new List<Type>(new Type[] { typeof(object) })); }
    }
}

Usage ( sample json ): 用法（示例json ）：

JavaScriptSerializer jss = new JavaScriptSerializer();
jss.RegisterConverters(new JavaScriptConverter[] { new DynamicJsonConverter() });

dynamic glossaryEntry = jss.Deserialize(json, typeof(object)) as dynamic;

Console.WriteLine("glossaryEntry.glossary.title: " + glossaryEntry.glossary.title);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.title: " + glossaryEntry.glossary.GlossDiv.title);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.ID: " + glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.ID);
Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.para: " + glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.para);
foreach (var also in glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.GlossSeeAlso)
{
    Console.WriteLine("glossaryEntry.glossary.GlossDiv.GlossList.GlossEntry.GlossDef.GlossSeeAlso: " + also);
}

This method has to return true, otherwise it will throw an error. 此方法必须返回true，否则将引发错误。 Eg you can throw an error if a key does not exist. 例如，如果密钥不存在，则可能引发错误。

Returning true and emptying result will return an empty value rather than throwing an error. 返回true和清空result将返回一个空值，而不是引发错误。

public override bool TryGetMember(GetMemberBinder binder, out object result)
{

    if (!this.Dictionary.ContainsKey(binder.Name))
    {
        result = "";
    }
    else
    {
        result = this.Dictionary[binder.Name];
    }

    if (result is IDictionary<string, object>)
    {
        result = new DynamicJsonObject(result as IDictionary<string, object>);
    }
    else if (result is ArrayList && (result as ArrayList) is IDictionary<string, object>)
    {
        result = new List<DynamicJsonObject>((result as ArrayList).ToArray().Select(x => new DynamicJsonObject(x as IDictionary<string, object>)));
    }
    else if (result is ArrayList)
    {
        result = new List<object>((result as ArrayList).ToArray());
    }

    return true; // this.Dictionary.ContainsKey(binder.Name);
}

Answer 4

I just think the whole example would be useful. 我只是认为整个示例会很有用。 This is the example for this problem. 这是此问题的示例。

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.ServiceModel.Web;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;
using System.Collections.Generic;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        GoogleSearchResults g1 = new GoogleSearchResults();
        const string json = @"{""responseData"": {""results"":[{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.cheese.com/"",""url"":""http://www.cheese.com/"",""visibleUrl"":""www.cheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:bkg1gwNt8u4J:www.cheese.com"",""title"":""\u003cb\u003eCHEESE\u003c/b\u003e.COM - All about \u003cb\u003echeese\u003c/b\u003e!."",""titleNoFormatting"":""CHEESE.COM - All about cheese!."",""content"":""\u003cb\u003eCheese\u003c/b\u003e - everything you want to know about it. Search \u003cb\u003echeese\u003c/b\u003e by name, by types   of milk, by textures and by countries.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://en.wikipedia.org/wiki/Cheese"",""url"":""http://en.wikipedia.org/wiki/Cheese"",""visibleUrl"":""en.wikipedia.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:n9icdgMlCXIJ:en.wikipedia.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e - Wikipedia, the free encyclopedia"",""titleNoFormatting"":""Cheese - Wikipedia, the free encyclopedia"",""content"":""\u003cb\u003eCheese\u003c/b\u003e is a food consisting of proteins and fat from milk, usually the milk of   cows, buffalo, goats, or sheep. It is produced by coagulation of the milk \u003cb\u003e...\u003c/b\u003e""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.ilovecheese.com/"",""url"":""http://www.ilovecheese.com/"",""visibleUrl"":""www.ilovecheese.com"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:GBhRR8ytMhQJ:www.ilovecheese.com"",""title"":""I Love \u003cb\u003eCheese\u003c/b\u003e!, Homepage"",""titleNoFormatting"":""I Love Cheese!, Homepage"",""content"":""The American Dairy Association\u0026#39;s official site includes recipes and information   on nutrition and storage of \u003cb\u003echeese\u003c/b\u003e.""},{""GsearchResultClass"":""GwebSearch"",""unescapedUrl"":""http://www.gnome.org/projects/cheese/"",""url"":""http://www.gnome.org/projects/cheese/"",""visibleUrl"":""www.gnome.org"",""cacheUrl"":""http://www.google.com/search?q\u003dcache:jvfWnVcSFeQJ:www.gnome.org"",""title"":""\u003cb\u003eCheese\u003c/b\u003e"",""titleNoFormatting"":""Cheese"",""content"":""\u003cb\u003eCheese\u003c/b\u003e uses your webcam to take photos and videos, applies fancy special effects   and lets you share the fun with others. It was written as part of Google\u0026#39;s \u003cb\u003e...\u003c/b\u003e""}],""cursor"":{""pages"":[{""start"":""0"",""label"":1},{""start"":""4"",""label"":2},{""start"":""8"",""label"":3},{""start"":""12"",""label"":4},{""start"":""16"",""label"":5},{""start"":""20"",""label"":6},{""start"":""24"",""label"":7},{""start"":""28"",""label"":8}],""estimatedResultCount"":""14400000"",""currentPageIndex"":0,""moreResultsUrl"":""http://www.google.com/search?oe\u003dutf8\u0026ie\u003dutf8\u0026source\u003duds\u0026start\u003d0\u0026hl\u003den-GB\u0026q\u003dcheese""}}, ""responseDetails"": null, ""responseStatus"": 200}";
        g1 = JSONHelper.Deserialise<GoogleSearchResults>(json);

        foreach (Pages x in g1.responseData.cursor.pages)
        {
            // Anything you want to get
            Response.Write(x.label);

        }
    }
}

public class JSONHelper
{
    public static T Deserialise<T>(string json)
    {
        using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
        {
            var serialiser = new DataContractJsonSerializer(typeof(T));
            return (T)serialiser.ReadObject(ms);
        }
    }

    public static string Serialize<T>(T obj)
    {
        DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
        using (MemoryStream ms = new MemoryStream())
        {
            serializer.WriteObject(ms, obj);
            return Encoding.Default.GetString(ms.ToArray());
        }
    }
}

[DataContract]
public class GoogleSearchResults
{
    [DataMember]
    public ResponseData responseData { get; set; }

    [DataMember]
    public string responseStatus { get; set; }

}


public class ResponseData
{
    [DataMember]
    public Cursor cursor { get; set; }

    [DataMember]
    public IEnumerable<Results> results { get; set; }


}


[DataContract]
public class Cursor
{
    [DataMember]
    public IEnumerable<Pages> pages { get; set; }
}



[DataContract]
public class Pages
{
    [DataMember]
    public string start { get; set; }

    [DataMember]
    public string label { get; set; }

}


[DataContract]
public class Results
{
    [DataMember]
    public string unescapedUrl { get; set; }

    [DataMember]
    public string url { get; set; }

    [DataMember]
    public string visibleUrl { get; set; }

    [DataMember]
    public string cacheUrl { get; set; }

    [DataMember]
    public string title { get; set; }

    [DataMember]
    public string titleNoFormatting { get; set; }

    [DataMember]
    public string content { get; set; }
}

Answer 5

I tried to use the code above but didn't work. 我试图使用上面的代码，但是没有用。 The JSON structure returned by Google is so different and there is a very important miss in the helper function: a call to DataContractJsonSerializer.ReadObject() that actually deserializes the JSON data into the object. Google返回的JSON结构是如此不同，并且在辅助函数中有一个非常重要的遗漏：调用DataContractJsonSerializer.ReadObject()实际上将JSON数据反序列化到对象中。

Here is the code that WORKS in 2011: 这是2011年工作的代码：

using System;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;
using System.Collections.Generic;

namespace <YOUR_NAMESPACE>
{
    public class JSONHelper
    {
        public static T Deserialise<T>(string json)
        {
            T obj = Activator.CreateInstance<T>();
            MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
            DataContractJsonSerializer serialiser = new DataContractJsonSerializer(obj.GetType());
            obj = (T)serialiser.ReadObject(ms);
            ms.Close();
            return obj;
        }
    }

    public class Result
    {
        public string GsearchResultClass { get; set; }
        public string unescapedUrl { get; set; }
        public string url { get; set; }
        public string visibleUrl { get; set; }
        public string cacheUrl { get; set; }
        public string title { get; set; }
        public string titleNoFormatting { get; set; }
        public string content { get; set; }
    }

    public class Page
    {
        public string start { get; set; }
        public int label { get; set; }
    }

    public class Cursor
    {
        public string resultCount { get; set; }
        public Page[] pages { get; set; }
        public string estimatedResultCount { get; set; }
        public int currentPageIndex { get; set; }
        public string moreResultsUrl { get; set; }
        public string searchResultTime { get; set; }
    }

    public class ResponseData
    {
        public Result[] results { get; set; }
        public Cursor cursor { get; set; }
    }

    public class GoogleSearchResults
    {
        public ResponseData responseData { get; set; }
        public object responseDetails { get; set; }
        public int responseStatus { get; set; }
    }
}

To get the content of the first result, do: 要获取第一个结果的内容，请执行以下操作：

GoogleSearchResults googleResults = new GoogleSearchResults();
googleResults = JSONHelper.Deserialise<GoogleSearchResults>(jsonData);
string contentOfFirstResult = googleResults.responseData.results[0].content;

Answer 6

Thank you all for your help. 谢谢大家的帮助。 This is my final version, and it works thanks to your combined help ! 这是我的最终版本，感谢您的综合帮助！ I am only showing the changes i made, all the rest is taken from Joe Chung's work 我只展示自己所做的更改，其余所有取材于乔钟的作品

public class GoogleSearchResults
    {
        [DataMember]
        public ResponseData responseData { get; set; }

        [DataMember]
        public string responseDetails { get; set; }

        [DataMember]
        public int responseStatus { get; set; }
    }

and 和

 [DataContract]
    public class ResponseData
    {
        [DataMember]
        public List<Results> results { get; set; }
    }

Answer 7

Google Map API request and parse DirectionsResponse with C#, change the json in your url to xml and use the following code to turn the result into a usable C# Generic List Object. Google Map API请求并使用C＃解析DirectionsResponse，将url中的json更改为xml，然后使用以下代码将结果转换为可用的C＃通用列表对象。

Took me a while to make. 花了我一段时间。 But here it is 但这是

var url = String.Format("http://maps.googleapis.com/maps/api/directions/xml?...");
var result = new System.Net.WebClient().DownloadString(url);
var doc = XDocument.Load(new StringReader(result));

var DirectionsResponse = doc.Elements("DirectionsResponse").Select(l => new
{
    Status = l.Elements("status").Select(q => q.Value).FirstOrDefault(),
    Route = l.Descendants("route").Select(n => new
    {
        Summary = n.Elements("summary").Select(q => q.Value).FirstOrDefault(),
        Leg = n.Elements("leg").ToList().Select(o => new
        {
            Step = o.Elements("step").Select(p => new
            {
                Travel_Mode = p.Elements("travel_mode").Select(q => q.Value).FirstOrDefault(),
                Start_Location = p.Elements("start_location").Select(q => new
                {
                    Lat = q.Elements("lat").Select(r => r.Value).FirstOrDefault(),
                    Lng = q.Elements("lng").Select(r => r.Value).FirstOrDefault()
                }).FirstOrDefault(),
                End_Location = p.Elements("end_location").Select(q => new
                {
                    Lat = q.Elements("lat").Select(r => r.Value).FirstOrDefault(),
                    Lng = q.Elements("lng").Select(r => r.Value).FirstOrDefault()
                }).FirstOrDefault(),
                Polyline = p.Elements("polyline").Select(q => new
                {
                    Points = q.Elements("points").Select(r => r.Value).FirstOrDefault()
                }).FirstOrDefault(),
                Duration = p.Elements("duration").Select(q => new
                {
                    Value = q.Elements("value").Select(r => r.Value).FirstOrDefault(),
                    Text = q.Elements("text").Select(r => r.Value).FirstOrDefault(),
                }).FirstOrDefault(),
                Html_Instructions = p.Elements("html_instructions").Select(q => q.Value).FirstOrDefault(),
                Distance = p.Elements("distance").Select(q => new
                {
                    Value = q.Elements("value").Select(r => r.Value).FirstOrDefault(),
                    Text = q.Elements("text").Select(r => r.Value).FirstOrDefault(),
                }).FirstOrDefault()
            }).ToList(),
            Duration = o.Elements("duration").Select(p => new
            {
                Value = p.Elements("value").Select(q => q.Value).FirstOrDefault(),
                Text = p.Elements("text").Select(q => q.Value).FirstOrDefault()
            }).FirstOrDefault(),
            Distance = o.Elements("distance").Select(p => new
            {
                Value = p.Elements("value").Select(q => q.Value).FirstOrDefault(),
                Text = p.Elements("text").Select(q => q.Value).FirstOrDefault()
            }).FirstOrDefault(),
            Start_Location = o.Elements("start_location").Select(p => new
            {
                Lat = p.Elements("lat").Select(q => q.Value).FirstOrDefault(),
                Lng = p.Elements("lng").Select(q => q.Value).FirstOrDefault()
            }).FirstOrDefault(),
            End_Location = o.Elements("end_location").Select(p => new
            {
                Lat = p.Elements("lat").Select(q => q.Value).FirstOrDefault(),
                Lng = p.Elements("lng").Select(q => q.Value).FirstOrDefault()
            }).FirstOrDefault(),
            Start_Address = o.Elements("start_address").Select(q => q.Value).FirstOrDefault(),
            End_Address = o.Elements("end_address").Select(q => q.Value).FirstOrDefault()
        }).ToList(),
        Copyrights = n.Elements("copyrights").Select(q => q.Value).FirstOrDefault(),
        Overview_polyline = n.Elements("overview_polyline").Select(q => new
        {
            Points = q.Elements("points").Select(r => r.Value).FirstOrDefault()
        }).FirstOrDefault(),
        Waypoint_Index = n.Elements("waypoint_index").Select(o => o.Value).ToList(),
        Bounds = n.Elements("bounds").Select(q => new
        {
            SouthWest = q.Elements("southwest").Select(r => new
            {
                Lat = r.Elements("lat").Select(s => s.Value).FirstOrDefault(),
                Lng = r.Elements("lng").Select(s => s.Value).FirstOrDefault()
            }).FirstOrDefault(),
            NorthEast = q.Elements("northeast").Select(r => new
            {
                Lat = r.Elements("lat").Select(s => s.Value).FirstOrDefault(),
                Lng = r.Elements("lng").Select(s => s.Value).FirstOrDefault()
            }).FirstOrDefault(),
        }).FirstOrDefault()
    }).FirstOrDefault()
}).FirstOrDefault();

I hope this will help someone. 我希望这会对某人有所帮助。

在C＃中解析JSON

问题描述

Related 有关

7 个解决方案

解决方案1
149 已采纳 2009-08-02 13:32:38

解决方案2
15 2009-08-02 14:21:49

解决方案3
15

解决方案4
8 2011-05-09 20:18:32

解决方案5
6 2011-10-25 09:44:58

解决方案6
4 2012-03-21 16:14:59

解决方案7
3 2013-11-09 22:39:50

在C＃中解析JSON

问题描述

Related 有关

7 个解决方案

解决方案1 149 已采纳 2009-08-02 13:32:38

解决方案2 15 2009-08-02 14:21:49

解决方案3 15

解决方案4 8 2011-05-09 20:18:32

解决方案5 6 2011-10-25 09:44:58

解决方案6 4 2012-03-21 16:14:59

解决方案7 3 2013-11-09 22:39:50

解决方案1
149 已采纳 2009-08-02 13:32:38

解决方案2
15 2009-08-02 14:21:49

解决方案3
15

解决方案4
8 2011-05-09 20:18:32

解决方案5
6 2011-10-25 09:44:58

解决方案6
4 2012-03-21 16:14:59

解决方案7
3 2013-11-09 22:39:50