.NET模型序列化json數據

轉換採用微軟.net類庫中的 JavaScriptSerializer 類來完成。

序列號所用數據模型定義
複製  保存
public class Study
{
    public string Name { get; set; }
    public int Age { get; set; }
}

將後臺模型轉換成json字符串的方法有以下幾種：

1、直接將數據序列化爲json字符串
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Study study = new Study() { Name = "你好", Age = 22 };

JavaScriptSerializer serialize = new JavaScriptSerializer();
string result = serialize.Serialize(study);

結果：{"Name":"你好","Age":22}

2、採用匿名對象自定義數據對象的序列化
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Study study = new Study() { Name = "你好", Age = 22 };

        JavaScriptSerializer serialize = new JavaScriptSerializer();
        string result = serialize.Serialize(new { N = study.Name, A = study.Age });

結果:{"N":"你好","A":22}

3、繼承JavaScriptConverter類，實現自定義數據對象的序列化
複製  保存
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Web.Script.Serialization;
public class StudyJsonConverter : JavaScriptConverter
{
    public override object Deserialize(IDictionary<string, object> dictionary, Type type,
        JavaScriptSerializer serializer)
    {
        if (dictionary == null)
            return null;
        if (type == typeof(Study))
        {
            Study result = new Study();
            result.Name = dictionary["N"] as string;
            result.Age = Convert.ToInt32(dictionary["A"]);
            return result;
        }
        return null;
    }

    public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
    {
        Study study = obj as Study;
        Dictionary<string, object> result = new Dictionary<string, object>();
        if (study != null)
        {
            result.Add("N", study.Name);
            result.Add("A", study.Age);
        }
        return result;
    }

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

序列化對象
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Study study = new Study() { Name = "你好", Age = 22 };

JavaScriptSerializer serialize = new JavaScriptSerializer();
serialize.RegisterConverters(new List<JavaScriptConverter>() { new StudyJsonConverter() });
string result = serialize.Serialize(study);

結果：{"N":"你好","A":22}

幾種結果的比較

第一種序列化的方法最簡單，卻有問題最大。當後太數據模型發生變化時，就會影響到前臺的JavaScript腳本，前臺和後臺的的連接過於緊密。並且不能對數據模型的屬進行壓縮。

第二種和第三種可對數據模型的屬性進行壓縮，並且後臺模型發生改變，也不會影響到前臺的JavaScript腳本。在應用時根據情況來採用採用不同的方法。